Seat Projections
This page displays constituency-level projections, usually based on polling and statistical analysis such as MRPs (Multilevel Regression with Poststratification). The data presented here does not indicate any prediction of the overall vote share (even when that is provided by a data provider). See the polls page for vote-share-oriented polling information.
The shades of cells within the table indicate the strength of the projection (i.e. how likely the data provider believes the projected result is). See the About page for more details.
The data providers retain all copyright for the data shown below. Please see the data providers page for more details.
| Description Links | Abbr. | Dates | Lab | Cons | LD | SNP | Ref | Green | PC | SF | DUP | SDLP | UUP | Alliance | TUV | YP | Ind | Other | n/a |
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| More in Common January 2026 Data Article | MIC5 | Jan 4, 2026 Nov 27 - Dec 16 | 85 | 70 | 35 | 40 | 381 | 9 | 5 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 6 | 19 |
| ElectoralCalculus/PLMR October 2025 Data Article | EC4 | Oct 15, 2025 Sep 10 - 18 | 117 | 24 | 58 | 42 | 367 | 6 | 5 | 0 | 0 | 0 | 0 | 0 | 0 | 13 | 0 | 0 | 18 |
| YouGov September 2025 Data Article | YG2 | Sep 26, 2025 Aug 31 - Sep 24 | 144 | 45 | 78 | 37 | 311 | 7 | 6 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 3 | 19 |
| More in Common September 2025 Data Article | MIC4 | Sep 27, 2025 Aug 8 - Sep 15 | 90 | 41 | 69 | 34 | 373 | 6 | 4 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 14 | 0 | 19 |
| More in Common July 2025 Data Article | MIC3 | Jul 5, 2025 Jun 13 - 30 | 126 | 81 | 73 | 42 | 290 | 7 | 4 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 8 | 0 | 19 |
| ElectoralCalculus/PLMR June 2025 Data | EC3 | Jun 25, 2025 Jun 10 - 17 | 118 | 29 | 69 | 26 | 377 | 4 | 4 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 5 | 18 |
| YouGov June 2025 Data Article | YG1 | Jun 26, 2025 May 29 - Jun 18 | 178 | 46 | 81 | 38 | 271 | 7 | 7 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 3 | 19 |
| ElectoralCalculus/PLMR April 2025 Data | EC2 | Apr 2, 2025 Mar 21 - 28 | 180 | 133 | 49 | 30 | 227 | 4 | 4 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 5 | 18 |
| More in Common April 2025 Data Article | MIC2 | Apr 20, 2025 Mar 14 - Apr 1 | 165 | 165 | 67 | 35 | 180 | 4 | 5 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 10 | 0 | 19 |
| ElectoralCalculus/PLMR Feb 2025 Data Article | EC1 | Feb 7, 2025 Jan 22 - 29 | 174 | 178 | 57 | 37 | 175 | 4 | 2 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 5 | 18 |
| Focaldata Jan 2025 Data Article | FD1 | Feb 3, 2025 Nov 30 - Jan 5 | 287 | 163 | 63 | 22 | 76 | 4 | 4 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 13 | 18 |
| More in Common Dec 2024 Data Article | MIC1 | Dec 28, 2024 Oct 31 - Dec 16 | 228 | 222 | 58 | 37 | 72 | 2 | 4 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 8 | 19 |
| Pre-2029 | Pre-2029 | 404 | 119 | 72 | 9 | 5 | 4 | 4 | 7 | 5 | 2 | 1 | 1 | 1 | 1 | 14 | 1 | 0 | |
| 2024 | 2024 | 411 | 121 | 72 | 9 | 5 | 4 | 4 | 7 | 5 | 2 | 1 | 1 | 1 | 0 | 6 | 1 | 0 | |
| 2019 (notional) | 2019 | 200 | 372 | 8 | 48 | 0 | 1 | 2 | 7 | 8 | 2 | 0 | 1 | 0 | 0 | 0 | 1 | 0 |
By constituency
| Constituency | 2019 | 2024 | Pre-2029 | MIC1 | FD1 | EC1 | MIC2 | EC2 | YG1 | EC3 | MIC3 | MIC4 | YG2 | EC4 | MIC5 |
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| Aberafan Maesteg | Lab | Lab | Lab | Lean Ref | Toss-up Lab | Toss-up Ref | Lean Ref | Toss-up Ref | Toss-up Ref | Lean Ref | Likely Ref | Lean Ref | Toss-up Ref | Likely Ref | Likely Ref |
| Aberdeen North | SNP | SNP | SNP | Likely SNP | Lean SNP | Likely SNP | Lean SNP | Likely SNP | Toss-up SNP | Likely SNP | Lean SNP | Toss-up SNP | Lean SNP | Likely SNP | Safe SNP |
| Aberdeen South | SNP | SNP | SNP | Safe SNP | Toss-up SNP | Lean SNP | Toss-up SNP | Lean SNP | Lean SNP | Lean SNP | Toss-up SNP | Toss-up Ref | Lean SNP | Lean SNP | Likely SNP |
| Aberdeenshire North and Moray East | Cons | SNP | SNP | Safe SNP | Toss-up Cons | Lean SNP | Toss-up SNP | Toss-up SNP | Toss-up SNP | Toss-up SNP | Lean SNP | Toss-up Ref | Toss-up SNP | Lean SNP | Toss-up Ref |
| Airdrie and Shotts | SNP | Lab | Lab | Safe SNP | Lean Lab | Toss-up Lab | Toss-up Lab | Toss-up Lab | Toss-up SNP | Toss-up Lab | Likely SNP | Lean SNP | Toss-up SNP | Toss-up SNP | Toss-up SNP |
| Aldershot | Cons | Lab | Lab | Likely Lab | Toss-up Lab | Toss-up Cons | Toss-up Cons | Toss-up Cons | Toss-up Ref | Toss-up Ref | Lean Ref | Toss-up Ref | Toss-up Ref | Likely Ref | Toss-up Ref |
| Aldridge-Brownhills | Cons | Cons | Cons | Safe Cons | Toss-up Cons | Toss-up Cons | Toss-up Ref | Toss-up Cons | Lean Ref | Likely Ref | Lean Ref | Likely Ref | Lean Ref | Lean Ref | Lean Ref |
| Alloa and Grangemouth | SNP | Lab | Lab | Likely SNP | Toss-up SNP | Toss-up SNP | Toss-up SNP | Toss-up SNP | Toss-up SNP | Toss-up Lab | Lean SNP | Toss-up Ref | Toss-up SNP | Toss-up SNP | Toss-up Ref |
| Altrincham and Sale West | Cons | Lab | Lab | Safe Lab | Toss-up Lab | Toss-up Lab | Toss-up Cons | Toss-up Cons | Toss-up Lab | Toss-up Lab | Toss-up Lab | Toss-up Ref | Toss-up Lab | Toss-up Lab | Toss-up Cons |
| Alyn and Deeside | Lab | Lab | Lab | Safe Lab | Toss-up Lab | Lean Ref | Toss-up Lab | Toss-up Ref | Toss-up Ref | Toss-up Ref | Likely Ref | Toss-up Ref | Lean Ref | Likely Ref | Toss-up Lab |
| Amber Valley | Cons | Lab | Lab | Safe Ref | Lean Ref | Likely Ref | Lean Ref | Likely Ref | Likely Ref | Safe Ref | Likely Ref | Safe Ref | Likely Ref | Safe Ref | Safe Ref |
| Angus and Perthshire Glens | SNP | SNP | SNP | Safe SNP | Toss-up SNP | Likely SNP | Lean SNP | Lean SNP | Likely SNP | Lean SNP | Likely SNP | Lean SNP | Likely SNP | Likely SNP | Lean SNP |
| Arbroath and Broughty Ferry | SNP | SNP | SNP | Safe SNP | Likely SNP | Likely SNP | Toss-up SNP | Likely SNP | Lean SNP | Likely SNP | Safe SNP | Toss-up Ref | Toss-up SNP | Likely SNP | Toss-up Ref |
| Argyll, Bute and South Lochaber | SNP | SNP | SNP | Safe SNP | Lean SNP | Likely SNP | Lean SNP | Likely SNP | Lean SNP | Likely SNP | Likely SNP | Lean SNP | Lean SNP | Lean SNP | Toss-up SNP |
| Arundel and South Downs | Cons | Cons | Cons | Safe Cons | Likely Cons | Likely Cons | Likely Cons | Toss-up Cons | Toss-up Cons | Toss-up Cons | Likely Cons | Lean Cons | Toss-up Cons | Lean Cons | Lean Cons |
| Ashfield | Cons | Ref | Ref | Safe Ref | Safe Ref | Safe Ref | Likely Ref | Safe Ref | Safe Ref | Safe Ref | Safe Ref | Safe Ref | Safe Ref | Safe Ref | Safe Ref |
| Ashford | Cons | Lab | Lab | Safe Cons | Toss-up Lab | Toss-up Ref | Toss-up Cons | Toss-up Ref | Lean Ref | Lean Ref | Likely Ref | Lean Ref | Lean Ref | Likely Ref | Lean Ref |
| Ashton-under-Lyne | Lab | Lab | Lab | Safe Ref | Lean Lab | Lean Ref | Lean Ref | Lean Ref | Toss-up Ref | Likely Ref | Likely Ref | Likely Ref | Lean Ref | Lean Ref | Safe Ref |
| Aylesbury | Cons | Lab | Lab | Safe Cons | Toss-up Cons | Toss-up Cons | Lean Cons | Toss-up Cons | Toss-up Ref | Lean Ref | Toss-up Cons | Toss-up Ref | Toss-up Ref | Lean Ref | Toss-up Ref |
| Ayr, Carrick and Cumnock | SNP | Lab | Lab | Lean SNP | Toss-up SNP | Toss-up SNP | Toss-up Lab | Toss-up SNP | Toss-up Ref | Toss-up SNP | Toss-up Lab | Toss-up SNP | Lean Ref | Toss-up SNP | Toss-up SNP |
| Banbury | Cons | Lab | Lab | Likely Cons | Toss-up Cons | Toss-up Cons | Lean Cons | Toss-up Lab | Toss-up Lab | Toss-up Ref | Toss-up Cons | Toss-up Ref | Toss-up Ref | Lean Ref | Toss-up Ref |
| Bangor Aberconwy | Cons | Lab | Lab | Safe Lab | Toss-up Ref | Toss-up Ref | Toss-up PC | Toss-up Cons | Likely PC | Toss-up Ref | Toss-up Ref | Lean Ref | Toss-up PC | Toss-up Ref | Toss-up PC |
| Barking | Lab | Lab | Lab | Safe Lab | Safe Lab | Toss-up Lab | Likely Lab | Toss-up Lab | Lean Lab | Lean Ref | Lean Ref | Toss-up Lab | Toss-up Lab | Toss-up Ref | Toss-up Ref |
| Barnsley North | Lab | Lab | Lab | Safe Ref | Toss-up Ref | Lean Ref | Likely Ref | Lean Ref | Lean Ref | Safe Ref | Safe Ref | Likely Ref | Lean Ref | Likely Ref | Safe Ref |
| Barnsley South | Lab | Lab | Lab | Safe Ref | Lean Ref | Likely Ref | Safe Ref | Likely Ref | Lean Ref | Safe Ref | Safe Ref | Safe Ref | Likely Ref | Safe Ref | Safe Ref |
| Barrow and Furness | Cons | Lab | Lab | Lean Cons | Toss-up Lab | Toss-up Ref | Lean Ref | Toss-up Ref | Toss-up Ref | Lean Ref | Lean Ref | Likely Ref | Toss-up Ref | Likely Ref | Lean Ref |
| Basildon and Billericay | Cons | Cons | Cons | Safe Cons | Toss-up Ref | Toss-up Ref | Lean Ref | Toss-up Ref | Lean Ref | Likely Ref | Likely Ref | Likely Ref | Lean Ref | Safe Ref | Lean Ref |
| Basingstoke | Cons | Lab | Lab | Safe Lab | Toss-up Lab | Toss-up Cons | Toss-up Lab | Toss-up Cons | Toss-up Lab | Toss-up Ref | Lean Ref | Toss-up Ref | Toss-up Ref | Lean Ref | Lean Ref |
| Bassetlaw | Cons | Lab | Lab | Safe Ref | Toss-up Ref | Lean Ref | Lean Ref | Lean Ref | Lean Ref | Likely Ref | Likely Ref | Likely Ref | Likely Ref | Safe Ref | Safe Ref |
| Bath | LD | LD | LD | Safe LD | Likely LD | Likely LD | Safe LD | Lean LD | Safe LD | Likely LD | Likely LD | Likely LD | Likely LD | Lean LD | Lean LD |
| Bathgate and Linlithgow | SNP | Lab | Lab | Lean SNP | Lean Lab | Toss-up Lab | Toss-up SNP | Toss-up Lab | Toss-up SNP | Toss-up Lab | Lean SNP | Lean Ref | Toss-up SNP | Toss-up Ref | Toss-up Ref |
| Battersea | Lab | Lab | Lab | Safe Lab | Safe Lab | Lean Lab | Likely Lab | Likely Lab | Likely Lab | Lean Lab | Likely Lab | Likely Lab | Lean Lab | Likely Lab | Likely Lab |
| Beaconsfield | Cons | Cons | Cons | Safe Cons | Lean Cons | Likely Cons | Likely Cons | Likely Cons | Toss-up Cons | Toss-up Cons | Lean Cons | Toss-up Cons | Toss-up Cons | Toss-up Cons | Toss-up Cons |
| Beckenham and Penge | Lab | Lab | Lab | Safe Lab | Likely Lab | Lean Lab | Lean Lab | Likely Lab | Lean Lab | Lean Lab | Lean Lab | Lean Lab | Lean Lab | Lean Lab | Lean Lab |
| Bedford | Lab | Lab | Lab | Safe Lab | Likely Lab | Lean Lab | Lean Lab | Toss-up Lab | Lean Lab | Toss-up Ref | Lean Lab | Toss-up Lab | Toss-up Lab | Toss-up Lab | Toss-up Lab |
| Belfast East | DUP | DUP | DUP | ||||||||||||
| Belfast North | SF | SF | SF | ||||||||||||
| Belfast South and Mid Down | SDLP | SDLP | SDLP | ||||||||||||
| Belfast West | SF | SF | SF | ||||||||||||
| Bermondsey and Old Southwark | Lab | Lab | Lab | Safe Lab | Likely Lab | Safe Lab | Lean Lab | Lean Lab | Lean Lab | Toss-up Lab | Lean Lab | Toss-up Lab | Toss-up Lab | Lean Lab | Toss-up Lab |
| Berwickshire, Roxburgh and Selkirk | Cons | Cons | Cons | Safe Cons | Likely Cons | Lean Cons | Toss-up Cons | Lean Cons | Toss-up Cons | Lean Cons | Lean Cons | Toss-up Cons | Toss-up Ref | Lean Cons | Toss-up Cons |
| Bethnal Green and Stepney | Lab | Lab | Lab | Likely Lab | Toss-up Lab | Lean Lab | Toss-up Ind | Toss-up Lab | Lean Lab | Toss-up Other | Toss-up Lab | Toss-up Ind | Toss-up Lab | Lean YP | Toss-up Lab |
| Beverley and Holderness | Cons | Cons | Cons | Safe Cons | Toss-up Cons | Toss-up Ref | Toss-up Cons | Toss-up Ref | Toss-up Ref | Lean Ref | Lean Ref | Lean Ref | Lean Ref | Likely Ref | Lean Ref |
| Bexhill and Battle | Cons | Cons | Cons | Safe Cons | Toss-up Cons | Lean Cons | Lean Cons | Toss-up Cons | Lean Ref | Lean Ref | Toss-up Cons | Toss-up Ref | Likely Ref | Toss-up Ref | Toss-up Ref |
| Bexleyheath and Crayford | Cons | Lab | Lab | Likely Cons | Toss-up Lab | Toss-up Cons | Toss-up Ref | Toss-up Ref | Lean Ref | Likely Ref | Toss-up Cons | Lean Ref | Lean Ref | Likely Ref | Lean Ref |
| Bicester and Woodstock | Cons | LD | LD | Lean Cons | Lean LD | Toss-up LD | Lean LD | Toss-up LD | Likely LD | Lean LD | Lean LD | Lean LD | Lean LD | Toss-up LD | Toss-up Ref |
| Birkenhead | Lab | Lab | Lab | Safe Lab | Likely Lab | Lean Lab | Lean Lab | Lean Lab | Toss-up Lab | Toss-up Ref | Toss-up Lab | Toss-up Lab | Toss-up Lab | Toss-up Lab | Toss-up Ref |
| Birmingham Edgbaston | Lab | Lab | Lab | Safe Lab | Likely Lab | Toss-up Lab | Likely Lab | Lean Lab | Lean Lab | Toss-up Ref | Toss-up Lab | Toss-up Lab | Toss-up Lab | Toss-up Lab | Lean Lab |
| Birmingham Erdington | Lab | Lab | Lab | Safe Lab | Lean Lab | Lean Ref | Toss-up Lab | Toss-up Ref | Toss-up Lab | Likely Ref | Safe Ref | Lean Ref | Toss-up Ref | Lean Ref | Lean Ref |
| Birmingham Hall Green and Moseley | Lab | Lab | Lab | Likely Other | Toss-up Lab | Toss-up Lab | Toss-up Ind | Toss-up Lab | Toss-up Lab | Toss-up Other | Toss-up Lab | Toss-up Ind | Toss-up Lab | Lean YP | Lean Lab |
| Birmingham Hodge Hill and Solihull North | Lab | Lab | Lab | Lean Ref | Lean Other | Toss-up Ref | Lean Lab | Toss-up Ref | Toss-up Ref | Likely Ref | Likely Ref | Toss-up Ref | Lean Ref | Likely Ref | Toss-up Ref |
| Birmingham Ladywood | Lab | Lab | Lab | Safe Lab | Lean Other | Lean Lab | Toss-up Lab | Lean Lab | Likely Lab | Toss-up Ref | Toss-up Lab | Toss-up Lab | Lean Lab | Lean YP | Lean Lab |
| Birmingham Northfield | Cons | Lab | Lab | Likely Lab | Toss-up Lab | Toss-up Ref | Toss-up Lab | Lean Ref | Toss-up Ref | Likely Ref | Likely Ref | Likely Ref | Lean Ref | Likely Ref | Lean Ref |
| Birmingham Perry Barr | Lab | Ind | Ind | Safe Other | Toss-up Other | Toss-up Lab | Toss-up Ind | Toss-up Lab | Lean Lab | Toss-up Ref | Toss-up Ind | Toss-up Ind | Toss-up Other | Lean YP | Toss-up Other |
| Birmingham Selly Oak | Lab | Lab | Lab | Safe Lab | Likely Lab | Toss-up Lab | Lean Lab | Lean Lab | Lean Lab | Toss-up Ref | Toss-up Lab | Toss-up Ref | Toss-up Lab | Lean Lab | Toss-up Lab |
| Birmingham Yardley | Lab | Lab | Lab | Lean Lab | Lean Other | Toss-up Other | Lean Lab | Toss-up Lab | Toss-up Lab | Lean Ref | Lean Ref | Toss-up Ind | Lean Ref | Lean Ref | Toss-up Ref |
| Bishop Auckland | Cons | Lab | Lab | Safe Cons | Toss-up Ref | Lean Ref | Lean Ref | Likely Ref | Lean Ref | Likely Ref | Safe Ref | Likely Ref | Lean Ref | Likely Ref | Likely Ref |
| Blackburn | Lab | Ind | Ind | Safe Other | Safe Other | Toss-up Other | Likely Ind | Lean Other | Toss-up Other | Toss-up Ref | Toss-up Ind | Toss-up Ind | Toss-up Ref | Lean YP | Toss-up Other |
| Blackley and Middleton South | Lab | Lab | Lab | Safe Lab | Likely Lab | Toss-up Ref | Toss-up Lab | Toss-up Ref | Toss-up Lab | Likely Ref | Lean Ref | Lean Ref | Toss-up Lab | Toss-up Lab | Likely Ref |
| Blackpool North and Fleetwood | Cons | Lab | Lab | Lean Ref | Toss-up Lab | Lean Ref | Likely Ref | Lean Ref | Likely Ref | Likely Ref | Safe Ref | Safe Ref | Likely Ref | Safe Ref | Likely Ref |
| Blackpool South | Cons | Lab | Lab | Safe Ref | Toss-up Lab | Lean Ref | Likely Ref | Likely Ref | Toss-up Ref | Likely Ref | Safe Ref | Likely Ref | Lean Ref | Likely Ref | Likely Ref |
| Blaenau Gwent and Rhymney | Lab | Lab | Lab | Lean Lab | Safe Lab | Lean Lab | Toss-up Lab | Lean Lab | Toss-up Lab | Toss-up Ref | Toss-up Ref | Toss-up Lab | Toss-up Ref | Toss-up Ref | Lean Ref |
| Blaydon and Consett | Lab | Lab | Lab | Safe Lab | Lean Lab | Toss-up Ref | Toss-up Ref | Toss-up Ref | Toss-up Ref | Lean Ref | Lean Ref | Toss-up Ref | Toss-up Ref | Toss-up Ref | Likely Ref |
| Blyth and Ashington | Lab | Lab | Lab | Likely Ref | Toss-up Lab | Lean Ref | Lean Ref | Toss-up Ref | Toss-up Ref | Likely Ref | Safe Ref | Lean Ref | Toss-up Ref | Lean Ref | Safe Ref |
| Bognor Regis and Littlehampton | Cons | Cons | Cons | Safe Cons | Toss-up Cons | Toss-up Cons | Toss-up Ref | Toss-up Ref | Lean Ref | Likely Ref | Lean Ref | Lean Ref | Lean Ref | Likely Ref | Lean Ref |
| Bolsover | Cons | Lab | Lab | Safe Ref | Toss-up Ref | Lean Ref | Likely Ref | Likely Ref | Lean Ref | Likely Ref | Safe Ref | Likely Ref | Likely Ref | Safe Ref | Safe Ref |
| Bolton North East | Cons | Lab | Lab | Safe Ref | Lean Lab | Lean Ref | Lean Ref | Lean Ref | Toss-up Ref | Likely Ref | Likely Ref | Likely Ref | Lean Ref | Likely Ref | Likely Ref |
| Bolton South and Walkden | Lab | Lab | Lab | Safe Ref | Lean Lab | Lean Ref | Toss-up Ref | Lean Ref | Toss-up Ref | Likely Ref | Likely Ref | Likely Ref | Lean Ref | Lean Ref | Likely Ref |
| Bolton West | Cons | Lab | Lab | Safe Cons | Toss-up Lab | Toss-up Ref | Toss-up Ref | Toss-up Ref | Toss-up Ref | Lean Ref | Lean Ref | Likely Ref | Lean Ref | Likely Ref | Lean Ref |
| Bootle | Lab | Lab | Lab | Safe Lab | Safe Lab | Likely Lab | Likely Lab | Likely Lab | Likely Lab | Toss-up Lab | Lean Lab | Lean Lab | Likely Lab | Lean Lab | Lean Lab |
| Boston and Skegness | Cons | Ref | Ref | Safe Ref | Likely Ref | Likely Ref | Safe Ref | Safe Ref | Safe Ref | Safe Ref | Safe Ref | Safe Ref | Safe Ref | Safe Ref | Safe Ref |
| Bournemouth East | Cons | Lab | Lab | Safe Cons | Lean Lab | Toss-up Lab | Toss-up Cons | Toss-up Lab | Toss-up Ref | Toss-up Ref | Lean Ref | Lean Ref | Toss-up Ref | Toss-up Ref | Lean Ref |
| Bournemouth West | Cons | Lab | Lab | Lean Cons | Toss-up Lab | Toss-up Cons | Lean Ref | Toss-up Cons | Toss-up Ref | Lean Ref | Lean Ref | Likely Ref | Lean Ref | Likely Ref | Lean Ref |
| Bracknell | Cons | Lab | Lab | Lean Cons | Toss-up Cons | Toss-up Cons | Toss-up Cons | Toss-up Cons | Toss-up Ref | Toss-up Ref | Lean Ref | Lean Ref | Toss-up Ref | Likely Ref | Lean Ref |
| Bradford East | Lab | Lab | Lab | Likely Lab | Toss-up Lab | Toss-up Lab | Lean Lab | Toss-up Lab | Lean Lab | Likely Ref | Toss-up Ref | Toss-up Ind | Toss-up Ref | Toss-up Ref | Toss-up Lab |
| Bradford South | Lab | Lab | Lab | Safe Ref | Toss-up Ref | Likely Ref | Lean Ref | Lean Ref | Toss-up Ref | Likely Ref | Safe Ref | Likely Ref | Lean Ref | Likely Ref | Likely Ref |
| Bradford West | Lab | Lab | Lab | Safe Other | Lean Other | Toss-up Lab | Toss-up Ind | Toss-up Other | Toss-up Other | Toss-up Ref | Toss-up Ind | Toss-up Ind | Toss-up Ref | Likely YP | Toss-up Other |
| Braintree | Cons | Cons | Cons | Safe Cons | Lean Cons | Toss-up Cons | Toss-up Cons | Toss-up Ref | Toss-up Ref | Likely Ref | Toss-up Ref | Lean Ref | Toss-up Ref | Lean Ref | Lean Ref |
| Brecon, Radnor and Cwm Tawe | Cons | LD | LD | Likely LD | Toss-up LD | Toss-up Ref | Likely Ref | Toss-up Cons | Toss-up Ref | Toss-up Ref | Likely Ref | Likely Ref | Toss-up Ref | Lean Ref | Toss-up Ref |
| Brent East | Lab | Lab | Lab | Safe Lab | Safe Lab | Likely Lab | Likely Lab | Likely Lab | Likely Lab | Toss-up Lab | Likely Lab | Safe Lab | Likely Lab | Lean Lab | Likely Lab |
| Brent West | Lab | Lab | Lab | Safe Lab | Lean Lab | Lean Cons | Toss-up Lab | Toss-up Cons | Toss-up Lab | Toss-up Ref | Lean Lab | Toss-up Lab | Toss-up Lab | Toss-up Lab | Toss-up Cons |
| Brentford and Isleworth | Lab | Lab | Lab | Safe Lab | Likely Lab | Toss-up Lab | Lean Lab | Lean Lab | Lean Lab | Toss-up Lab | Likely Lab | Likely Lab | Lean Lab | Lean Lab | Lean Lab |
| Brentwood and Ongar | Cons | Cons | Cons | Safe Cons | Toss-up Cons | Toss-up Cons | Toss-up Cons | Toss-up Ref | Toss-up Ref | Lean Ref | Toss-up Cons | Toss-up Ref | Toss-up Ref | Lean Ref | Toss-up Ref |
| Bridgend | Cons | Lab | Lab | Safe Lab | Toss-up Ref | Toss-up Ref | Lean Ref | Toss-up Ref | Toss-up Ref | Toss-up Ref | Likely Ref | Likely Ref | Lean Ref | Likely Ref | Toss-up Ref |
| Bridgwater | Cons | Cons | Cons | Lean Cons | Toss-up Ref | Toss-up Ref | Lean Ref | Toss-up Ref | Lean Ref | Lean Ref | Likely Ref | Likely Ref | Lean Ref | Likely Ref | Likely Ref |
| Bridlington and The Wolds | Cons | Cons | Cons | Safe Cons | Toss-up Ref | Lean Ref | Lean Ref | Lean Ref | Likely Ref | Likely Ref | Likely Ref | Likely Ref | Likely Ref | Likely Ref | Lean Ref |
| Brigg and Immingham | Cons | Cons | Cons | Safe Cons | Toss-up Ref | Toss-up Ref | Lean Ref | Lean Ref | Lean Ref | Likely Ref | Likely Ref | Likely Ref | Lean Ref | Likely Ref | Likely Ref |
| Brighton Kemptown and Peacehaven | Lab | Lab | Lab | Safe Lab | Lean Lab | Toss-up Lab | Lean Lab | Lean Lab | Toss-up Lab | Lean Lab | Lean Lab | Toss-up Lab | Toss-up Lab | Toss-up Lab | Lean Green |
| Brighton Pavilion | Green | Green | Green | Safe Green | Safe Green | Likely Green | Safe Green | Safe Green | Safe Green | Safe Green | Safe Green | Safe Green | Safe Green | Likely Green | Safe Green |
| Bristol Central | Lab | Green | Green | Safe Green | Safe Green | Safe Green | Likely Green | Safe Green | Safe Green | Safe Green | Safe Green | Safe Green | Safe Green | Likely Green | Safe Green |
| Bristol East | Lab | Lab | Lab | Safe Lab | Toss-up Lab | Toss-up Lab | Toss-up Lab | Toss-up Lab | Toss-up Green | Toss-up Green | Toss-up Green | Toss-up Green | Lean Green | Toss-up Green | Likely Green |
| Bristol North East | Lab | Lab | Lab | Safe Lab | Likely Lab | Toss-up Lab | Lean Lab | Lean Lab | Toss-up Lab | Toss-up Lab | Toss-up Lab | Toss-up Ref | Toss-up Lab | Lean Lab | Toss-up Ref |
| Bristol North West | Lab | Lab | Lab | Safe Lab | Likely Lab | Lean Lab | Likely Lab | Likely Lab | Lean Lab | Lean Lab | Lean Lab | Toss-up Lab | Lean Lab | Likely Lab | Toss-up Lab |
| Bristol South | Lab | Lab | Lab | Safe Lab | Toss-up Lab | Toss-up Lab | Toss-up Lab | Lean Lab | Toss-up Green | Toss-up Ref | Toss-up Green | Toss-up Ref | Toss-up Green | Toss-up Ref | Toss-up Green |
| Broadland and Fakenham | Cons | Cons | Cons | Safe Cons | Toss-up Cons | Toss-up Cons | Toss-up Cons | Toss-up Ref | Toss-up Ref | Toss-up Ref | Toss-up Ref | Toss-up Ref | Lean Ref | Lean Ref | Lean Ref |
| Bromley and Biggin Hill | Cons | Cons | Cons | Safe Cons | Toss-up Cons | Lean Cons | Lean Cons | Lean Cons | Toss-up Cons | Toss-up Ref | Toss-up Ref | Toss-up Cons | Toss-up Cons | Lean Ref | Toss-up Cons |
| Bromsgrove | Cons | Cons | Cons | Safe Cons | Toss-up Cons | Lean Cons | Lean Cons | Toss-up Cons | Toss-up Ref | Lean Ref | Toss-up Cons | Lean Ref | Toss-up Ref | Toss-up Ref | Lean Ref |
| Broxbourne | Cons | Cons | Cons | Safe Cons | Lean Cons | Toss-up Cons | Toss-up Ref | Toss-up Cons | Toss-up Ref | Lean Ref | Toss-up Ref | Lean Ref | Toss-up Ref | Lean Ref | Lean Ref |
| Broxtowe | Cons | Lab | Lab | Safe Lab | Lean Lab | Toss-up Lab | Toss-up Lab | Toss-up Ref | Toss-up Ref | Toss-up Ref | Toss-up Lab | Lean Ref | Toss-up Ref | Toss-up Ref | Lean Ref |
| Buckingham and Bletchley | Cons | Lab | Lab | Safe Cons | Toss-up Cons | Toss-up Cons | Toss-up Cons | Toss-up Cons | Toss-up Ref | Lean Ref | Toss-up Cons | Toss-up Ref | Toss-up Ref | Lean Ref | Toss-up Ref |
| Burnley | Cons | Lab | Lab | Safe Ref | Toss-up Lab | Lean Ref | Lean Ref | Lean Ref | Lean Ref | Likely Ref | Safe Ref | Likely Ref | Lean Ref | Likely Ref | Likely Ref |
| Burton and Uttoxeter | Cons | Lab | Lab | Safe Cons | Toss-up Cons | Toss-up Cons | Toss-up Ref | Toss-up Ref | Lean Ref | Likely Ref | Likely Ref | Likely Ref | Likely Ref | Likely Ref | Likely Ref |
| Bury North | Cons | Lab | Lab | Safe Lab | Lean Lab | Toss-up Lab | Toss-up Ref | Toss-up Ref | Toss-up Ref | Lean Ref | Toss-up Ref | Lean Ref | Toss-up Ref | Lean Ref | Lean Ref |
| Bury South | Cons | Lab | Lab | Safe Lab | Likely Lab | Toss-up Lab | Toss-up Ref | Toss-up Ref | Toss-up Lab | Lean Ref | Toss-up Lab | Lean Ref | Toss-up Ref | Toss-up Ref | Lean Ref |
| Bury St Edmunds and Stowmarket | Cons | Lab | Lab | Safe Cons | Toss-up Cons | Toss-up Cons | Toss-up Cons | Toss-up Ref | Lean Ref | Lean Ref | Toss-up Ref | Lean Ref | Likely Ref | Lean Ref | Lean Ref |
| Caerfyrddin | Cons | PC | PC | Safe PC | Lean PC | Toss-up Ref | Toss-up PC | Toss-up PC | Toss-up PC | Toss-up PC | Lean PC | Toss-up PC | Toss-up PC | Toss-up PC | Toss-up PC |
| Caerphilly | Lab | Lab | Lab | Safe Lab | Toss-up Lab | Lean Ref | Toss-up Ref | Toss-up Ref | Lean Ref | Lean Ref | Toss-up Ref | Lean Ref | Lean Ref | Lean Ref | Toss-up Lab |
| Caithness, Sutherland and Easter Ross | SNP | LD | LD | Safe LD | Likely LD | Likely LD | Safe LD | Likely LD | Likely LD | Likely LD | Toss-up LD | Toss-up LD | Safe LD | Likely LD | Likely LD |
| Calder Valley | Cons | Lab | Lab | Safe Lab | Toss-up Lab | Toss-up Lab | Toss-up Cons | Toss-up Ref | Toss-up Lab | Toss-up Ref | Toss-up Ref | Lean Ref | Toss-up Ref | Toss-up Ref | Lean Ref |
| Camborne and Redruth | Cons | Lab | Lab | Safe Cons | Toss-up Lab | Toss-up Lab | Toss-up Ref | Toss-up Ref | Toss-up Ref | Lean Ref | Lean Ref | Likely Ref | Lean Ref | Lean Ref | Lean Ref |
| Cambridge | Lab | Lab | Lab | Safe Lab | Likely Lab | Likely Lab | Likely Lab | Likely Lab | Lean Lab | Lean Lab | Likely Lab | Lean Lab | Lean Lab | Lean Lab | Lean Lab |
| Cannock Chase | Cons | Lab | Lab | Lean Ref | Lean Ref | Toss-up Ref | Lean Ref | Lean Ref | Likely Ref | Likely Ref | Likely Ref | Safe Ref | Likely Ref | Safe Ref | Likely Ref |
| Canterbury | Lab | Lab | Ind | Safe Lab | Lean Lab | Lean Lab | Toss-up Lab | Toss-up Lab | Toss-up Lab | Toss-up Lab | Toss-up Lab | Toss-up Ref | Toss-up Lab | Toss-up Lab | Toss-up Ref |
| Cardiff East | Lab | Lab | Lab | Likely Lab | Lean Lab | Lean Lab | Toss-up Lab | Toss-up Lab | Toss-up Lab | Toss-up Ref | Toss-up Lab | Lean Ref | Toss-up Lab | Toss-up Ref | Toss-up Lab |
| Cardiff North | Lab | Lab | Lab | Safe Lab | Likely Lab | Toss-up Lab | Lean Lab | Toss-up Lab | Toss-up Lab | Lean Lab | Toss-up Lab | Toss-up Ref | Toss-up Lab | Toss-up Lab | Toss-up Lab |
| Cardiff South and Penarth | Lab | Lab | Lab | Safe Lab | Likely Lab | Toss-up Lab | Lean Lab | Toss-up Lab | Lean Lab | Toss-up Lab | Lean Lab | Toss-up Ref | Toss-up Lab | Toss-up Lab | Lean Lab |
| Cardiff West | Lab | Lab | Lab | Safe Lab | Toss-up Lab | Toss-up Lab | Toss-up Lab | Toss-up Lab | Lean PC | Toss-up Lab | Toss-up PC | Toss-up Ref | Likely PC | Toss-up PC | Toss-up Ref |
| Carlisle | Cons | Lab | Lab | Safe Cons | Toss-up Lab | Lean Ref | Lean Ref | Lean Ref | Lean Ref | Likely Ref | Likely Ref | Likely Ref | Lean Ref | Likely Ref | Likely Ref |
| Carshalton and Wallington | Cons | LD | LD | Safe LD | Lean LD | Toss-up LD | Likely LD | Toss-up LD | Likely LD | Toss-up LD | Lean LD | Likely LD | Likely LD | Toss-up LD | Toss-up LD |
| Castle Point | Cons | Cons | Cons | Safe Cons | Toss-up Ref | Toss-up Ref | Lean Ref | Toss-up Ref | Likely Ref | Likely Ref | Likely Ref | Likely Ref | Likely Ref | Likely Ref | Likely Ref |
| Central Ayrshire | SNP | Lab | Lab | Safe SNP | Toss-up SNP | Toss-up SNP | Toss-up Lab | Toss-up Lab | Toss-up SNP | Toss-up Lab | Lean SNP | Toss-up Ref | Toss-up Ref | Toss-up Ref | Toss-up Ref |
| Central Devon | Cons | Cons | Cons | Safe Cons | Toss-up Cons | Lean Cons | Likely Cons | Toss-up Cons | Toss-up Ref | Toss-up Ref | Lean Cons | Toss-up Ref | Toss-up Ref | Lean Ref | Toss-up Ref |
| Central Suffolk and North Ipswich | Cons | Cons | Ind | Safe Cons | Toss-up Cons | Toss-up Cons | Toss-up Cons | Toss-up Ref | Toss-up Ref | Lean Ref | Toss-up Ref | Toss-up Ref | Lean Ref | Toss-up Ref | Lean Ref |
| Ceredigion Preseli | PC | PC | PC | Safe PC | Safe PC | Lean PC | Likely PC | Likely PC | Safe PC | Likely PC | Safe PC | Likely PC | Safe PC | Likely PC | Safe PC |
| Chatham and Aylesford | Cons | Lab | Lab | Safe Cons | Toss-up Ref | Toss-up Ref | Toss-up Ref | Toss-up Ref | Lean Ref | Likely Ref | Likely Ref | Likely Ref | Likely Ref | Safe Ref | Lean Ref |
| Cheadle | Cons | LD | LD | Safe LD | Likely LD | Toss-up LD | Likely LD | Lean LD | Safe LD | Lean LD | Likely LD | Likely LD | Safe LD | Likely LD | Lean LD |
| Chelmsford | Cons | LD | LD | Safe LD | Toss-up LD | Toss-up LD | Lean LD | Toss-up Cons | Likely LD | Lean LD | Lean LD | Lean LD | Lean LD | Toss-up Ref | Toss-up LD |
| Chelsea and Fulham | Cons | Lab | Lab | Safe Lab | Toss-up Cons | Toss-up Cons | Toss-up Cons | Toss-up Cons | Toss-up Cons | Toss-up Lab | Toss-up Cons | Toss-up Cons | Toss-up Cons | Toss-up Lab | Toss-up Cons |
| Cheltenham | Cons | LD | LD | Safe LD | Toss-up LD | Toss-up LD | Likely LD | Toss-up LD | Likely LD | Lean LD | Lean LD | Lean LD | Likely LD | Lean LD | Toss-up LD |
| Chesham and Amersham | Cons | LD | LD | Safe LD | Toss-up LD | Toss-up LD | Toss-up LD | Toss-up Cons | Likely LD | Lean LD | Toss-up LD | Lean LD | Likely LD | Toss-up LD | Toss-up Cons |
| Chester North and Neston | Lab | Lab | Lab | Safe Lab | Likely Lab | Toss-up Lab | Toss-up Lab | Lean Lab | Lean Lab | Toss-up Lab | Lean Lab | Toss-up Ref | Toss-up Lab | Toss-up Lab | Toss-up Ref |
| Chester South and Eddisbury | Cons | Cons | Cons | Safe Cons | Lean Cons | Lean Cons | Likely Cons | Toss-up Cons | Toss-up Cons | Toss-up Cons | Lean Cons | Toss-up Ref | Toss-up Cons | Toss-up Ref | Toss-up Cons |
| Chesterfield | Lab | Lab | Lab | Likely Lab | Lean Lab | Toss-up Ref | Lean Ref | Toss-up Ref | Toss-up Ref | Lean Ref | Lean Ref | Likely Ref | Toss-up Ref | Lean Ref | Likely Ref |
| Chichester | Cons | LD | LD | Lean LD | Likely LD | Lean LD | Lean LD | Toss-up LD | Likely LD | Toss-up LD | Likely LD | Lean LD | Likely LD | Toss-up LD | Toss-up Ref |
| Chingford and Woodford Green | Cons | Cons | Cons | Safe Cons | Toss-up Other | Lean Cons | Lean Cons | Lean Cons | Toss-up Cons | Toss-up Ref | Lean Cons | Toss-up Ind | Toss-up Cons | Lean Ref | Lean Cons |
| Chippenham | Cons | LD | LD | Safe LD | Lean LD | Lean LD | Lean LD | Toss-up LD | Likely LD | Lean LD | Likely LD | Lean LD | Likely LD | Lean LD | Toss-up LD |
| Chipping Barnet | Cons | Lab | Lab | Likely Lab | Toss-up Lab | Toss-up Cons | Toss-up Cons | Toss-up Cons | Toss-up Lab | Toss-up Lab | Toss-up Cons | Toss-up Cons | Toss-up Lab | Toss-up Lab | Toss-up Cons |
| Chorley | Other | Other | Other | Safe Other | Safe Lab | Safe Lab | Lean Lab | Likely Lab | |||||||
| Christchurch | Cons | Cons | Cons | Safe Cons | Toss-up Cons | Lean Cons | Toss-up Cons | Toss-up Cons | Lean Ref | Lean Ref | Toss-up Ref | Lean Ref | Lean Ref | Toss-up Ref | Likely Ref |
| Cities of London and Westminster | Cons | Lab | Lab | Safe Lab | Toss-up Lab | Toss-up Cons | Toss-up Lab | Toss-up Lab | Toss-up Lab | Toss-up Lab | Toss-up Lab | Toss-up Lab | Toss-up Lab | Toss-up Lab | Toss-up Cons |
| City of Durham | Lab | Lab | Lab | Safe Lab | Lean Lab | Toss-up Lab | Toss-up Lab | Toss-up Lab | Toss-up Lab | Toss-up Ref | Toss-up Ref | Toss-up Ref | Toss-up Lab | Toss-up Lab | Lean Ref |
| Clacton | Cons | Ref | Ref | Safe Ref | Safe Ref | Likely Ref | Safe Ref | Likely Ref | Safe Ref | Safe Ref | Safe Ref | Safe Ref | Safe Ref | Safe Ref | Safe Ref |
| Clapham and Brixton Hill | Lab | Lab | Lab | Safe Lab | Safe Lab | Likely Lab | Safe Lab | Likely Lab | Safe Lab | Lean Lab | Safe Lab | Safe Lab | Likely Lab | Likely Lab | Likely Lab |
| Clwyd East | Cons | Lab | Lab | Safe Lab | Toss-up Cons | Toss-up Ref | Toss-up Cons | Toss-up Cons | Lean Ref | Toss-up Ref | Lean Ref | Lean Ref | Lean Ref | Lean Ref | Toss-up Ref |
| Clwyd North | Cons | Lab | Lab | Lean Lab | Toss-up Cons | Toss-up Ref | Toss-up Ref | Toss-up Cons | Lean Ref | Lean Ref | Lean Ref | Likely Ref | Lean Ref | Likely Ref | Likely Ref |
| Coatbridge and Bellshill | SNP | Lab | Lab | Likely SNP | Toss-up Lab | Toss-up SNP | Toss-up SNP | Toss-up Lab | Toss-up SNP | Toss-up Lab | Safe SNP | Lean SNP | Likely SNP | Toss-up SNP | Toss-up SNP |
| Colchester | Cons | Lab | Lab | Safe Lab | Lean Lab | Lean Lab | Toss-up Lab | Toss-up Lab | Toss-up Lab | Toss-up Ref | Lean Ref | Toss-up Ref | Toss-up Ref | Toss-up Ref | Toss-up Ref |
| Colne Valley | Cons | Lab | Lab | Likely Cons | Toss-up Cons | Toss-up Lab | Toss-up Cons | Toss-up Ref | Toss-up Ref | Toss-up Ref | Toss-up Ref | Lean Ref | Toss-up Ref | Lean Ref | Toss-up Ref |
| Congleton | Cons | Lab | Lab | Safe Cons | Toss-up Cons | Toss-up Cons | Toss-up Cons | Toss-up Ref | Toss-up Ref | Lean Ref | Toss-up Cons | Lean Ref | Lean Ref | Likely Ref | Lean Ref |
| Corby and East Northamptonshire | Cons | Lab | Lab | Lean Cons | Toss-up Lab | Toss-up Ref | Toss-up Ref | Toss-up Ref | Toss-up Ref | Lean Ref | Toss-up Ref | Lean Ref | Toss-up Ref | Likely Ref | Lean Ref |
| Coventry East | Lab | Lab | Lab | Safe Lab | Likely Lab | Toss-up Ref | Lean Lab | Toss-up Lab | Toss-up Lab | Lean Ref | Lean Ref | Toss-up Ref | Toss-up Lab | Toss-up Ref | Lean Ref |
| Coventry North West | Lab | Lab | Lab | Safe Lab | Lean Lab | Toss-up Lab | Toss-up Lab | Toss-up Lab | Toss-up Ref | Toss-up Ref | Toss-up Ref | Lean Ref | Toss-up Ref | Toss-up Ref | Lean Ref |
| Coventry South | Lab | Lab | YP | Safe Lab | Likely Lab | Lean Lab | Lean Lab | Lean Lab | Lean Lab | Toss-up Lab | Toss-up Lab | Toss-up Ref | Toss-up Lab | Toss-up Lab | Toss-up Ref |
| Cowdenbeath and Kirkcaldy | SNP | Lab | Lab | Lean SNP | Toss-up Lab | Toss-up Lab | Toss-up SNP | Toss-up Lab | Toss-up Lab | Toss-up Lab | Toss-up SNP | Toss-up Lab | Toss-up Lab | Toss-up SNP | Likely SNP |
| Cramlington and Killingworth | Lab | Lab | Lab | Safe Lab | Lean Lab | Toss-up Ref | Lean Ref | Toss-up Lab | Toss-up Ref | Toss-up Ref | Lean Ref | Lean Ref | Toss-up Ref | Toss-up Ref | Likely Ref |
| Crawley | Cons | Lab | Lab | Safe Lab | Toss-up Lab | Toss-up Cons | Toss-up Cons | Toss-up Ref | Toss-up Ref | Lean Ref | Likely Ref | Lean Ref | Toss-up Ref | Likely Ref | Lean Ref |
| Crewe and Nantwich | Cons | Lab | Lab | Safe Lab | Lean Lab | Toss-up Ref | Lean Ref | Toss-up Ref | Toss-up Ref | Lean Ref | Lean Ref | Likely Ref | Toss-up Ref | Lean Ref | Likely Ref |
| Croydon East | Lab | Lab | Lab | Safe Lab | Likely Lab | Toss-up Cons | Lean Lab | Toss-up Lab | Toss-up Lab | Toss-up Ref | Lean Lab | Toss-up Lab | Toss-up Lab | Toss-up Lab | Toss-up Lab |
| Croydon South | Cons | Cons | Cons | Safe Cons | Lean Cons | Likely Cons | Lean Cons | Lean Cons | Lean Cons | Lean Cons | Toss-up Cons | Lean Cons | Lean Cons | Toss-up Cons | Lean Cons |
| Croydon West | Lab | Lab | Lab | Safe Lab | Safe Lab | Likely Lab | Safe Lab | Likely Lab | Safe Lab | Toss-up Lab | Safe Lab | Safe Lab | Likely Lab | Lean Lab | Likely Lab |
| Cumbernauld and Kirkintilloch | SNP | Lab | Lab | Safe SNP | Toss-up SNP | Toss-up SNP | Lean SNP | Toss-up SNP | Lean SNP | Toss-up SNP | Safe SNP | Lean SNP | Likely SNP | Lean SNP | Lean SNP |
| Dagenham and Rainham | Lab | Lab | Lab | Lean Ref | Lean Lab | Lean Ref | Toss-up Ref | Lean Ref | Toss-up Ref | Likely Ref | Likely Ref | Lean Ref | Lean Ref | Lean Ref | Safe Ref |
| Darlington | Cons | Lab | Lab | Safe Cons | Toss-up Lab | Toss-up Ref | Toss-up Ref | Toss-up Ref | Toss-up Ref | Lean Ref | Lean Ref | Lean Ref | Lean Ref | Likely Ref | Lean Ref |
| Dartford | Cons | Lab | Lab | Safe Cons | Toss-up Ref | Toss-up Cons | Toss-up Cons | Toss-up Ref | Lean Ref | Likely Ref | Toss-up Ref | Lean Ref | Lean Ref | Likely Ref | Lean Ref |
| Daventry | Cons | Cons | Cons | Safe Cons | Lean Cons | Toss-up Ref | Toss-up Cons | Toss-up Ref | Toss-up Ref | Lean Ref | Toss-up Cons | Lean Ref | Toss-up Ref | Likely Ref | Lean Ref |
| Derby North | Cons | Lab | Lab | Safe Lab | Lean Lab | Toss-up Lab | Toss-up Ref | Toss-up Ref | Toss-up Ref | Lean Ref | Toss-up Lab | Lean Ref | Toss-up Ref | Toss-up Ref | Likely Ref |
| Derby South | Lab | Lab | Lab | Likely Lab | Toss-up Lab | Lean Ref | Toss-up Ref | Lean Ref | Toss-up Ref | Likely Ref | Likely Ref | Lean Ref | Lean Ref | Lean Ref | Lean Ref |
| Derbyshire Dales | Cons | Lab | Lab | Safe Cons | Toss-up Cons | Toss-up Cons | Lean Cons | Toss-up Ref | Toss-up Ref | Toss-up Ref | Toss-up Cons | Toss-up Ref | Lean Ref | Lean Ref | Toss-up Ref |
| Dewsbury and Batley | Lab | Ind | Ind | Safe Other | Safe Other | Toss-up Other | Lean Ind | Toss-up Other | Lean Ref | Toss-up Ref | Toss-up Ind | Lean Ind | Likely Ref | Toss-up YP | Lean Other |
| Didcot and Wantage | Cons | LD | LD | Likely LD | Toss-up LD | Toss-up LD | Lean LD | Toss-up LD | Likely LD | Lean LD | Lean LD | Lean LD | Likely LD | Lean LD | Toss-up Ref |
| Doncaster Central | Lab | Lab | Lab | Safe Ref | Toss-up Ref | Lean Ref | Lean Ref | Toss-up Ref | Toss-up Ref | Likely Ref | Safe Ref | Likely Ref | Lean Ref | Likely Ref | Safe Ref |
| Doncaster East and the Isle of Axholme | Cons | Lab | Lab | Likely Ref | Toss-up Ref | Lean Ref | Lean Ref | Lean Ref | Lean Ref | Likely Ref | Safe Ref | Likely Ref | Likely Ref | Safe Ref | Likely Ref |
| Doncaster North | Lab | Lab | Lab | Likely Ref | Lean Lab | Toss-up Lab | Toss-up Ref | Toss-up Lab | Toss-up Lab | Toss-up Ref | Safe Ref | Lean Ref | Toss-up Ref | Toss-up Ref | Safe Ref |
| Dorking and Horley | Cons | LD | LD | Lean Cons | Toss-up LD | Toss-up LD | Toss-up LD | Toss-up Cons | Likely LD | Lean LD | Toss-up LD | Lean LD | Likely LD | Toss-up LD | Toss-up Cons |
| Dover and Deal | Cons | Lab | Lab | Lean Lab | Toss-up Ref | Toss-up Ref | Toss-up Lab | Toss-up Ref | Lean Ref | Lean Ref | Lean Ref | Lean Ref | Likely Ref | Likely Ref | Lean Ref |
| Droitwich and Evesham | Cons | Cons | Cons | Safe Cons | Lean Cons | Lean Cons | Lean Cons | Toss-up Cons | Toss-up Ref | Lean Ref | Toss-up Cons | Toss-up Ref | Toss-up Ref | Toss-up Ref | Toss-up Ref |
| Dudley | Cons | Lab | Lab | Likely Ref | Lean Ref | Toss-up Ref | Likely Ref | Lean Ref | Likely Ref | Safe Ref | Safe Ref | Safe Ref | Likely Ref | Safe Ref | Likely Ref |
| Dulwich and West Norwood | Lab | Lab | Lab | Safe Lab | Safe Lab | Likely Lab | Safe Lab | Likely Lab | Safe Lab | Lean Lab | Likely Lab | Safe Lab | Likely Lab | Likely Lab | Lean Lab |
| Dumfries and Galloway | Cons | Cons | Cons | Lean Cons | Toss-up Cons | Toss-up SNP | Lean Lab | Toss-up SNP | Toss-up Ref | Toss-up SNP | Likely Lab | Toss-up SNP | Toss-up Ref | Toss-up SNP | Lean SNP |
| Dumfriesshire, Clydesdale and Tweeddale | Cons | Cons | Cons | Lean Cons | Lean Cons | Toss-up Cons | Toss-up SNP | Toss-up Cons | Toss-up Ref | Toss-up Cons | Lean Cons | Toss-up SNP | Toss-up Ref | Toss-up Cons | Toss-up SNP |
| Dundee Central | SNP | SNP | SNP | Safe SNP | Likely SNP | Likely SNP | Lean SNP | Likely SNP | Lean SNP | Likely SNP | Toss-up Lab | Likely SNP | Safe SNP | Likely SNP | Toss-up SNP |
| Dunfermline and Dollar | SNP | Lab | Lab | Lean SNP | Lean Lab | Toss-up Lab | Toss-up SNP | Toss-up Lab | Toss-up Lab | Toss-up Lab | Toss-up SNP | Toss-up Ref | Toss-up Lab | Toss-up SNP | Likely SNP |
| Dunstable and Leighton Buzzard | Cons | Lab | Lab | Safe Cons | Toss-up Cons | Toss-up Cons | Toss-up Cons | Toss-up Cons | Toss-up Ref | Toss-up Ref | Toss-up Ref | Lean Ref | Lean Ref | Likely Ref | Lean Ref |
| Dwyfor Meirionnydd | PC | PC | PC | Safe PC | Safe PC | Likely PC | Safe PC | Likely PC | Safe PC | Lean PC | Likely PC | Likely PC | Safe PC | Lean PC | Likely PC |
| Ealing Central and Acton | Lab | Lab | Lab | Safe Lab | Likely Lab | Likely Lab | Likely Lab | Likely Lab | Likely Lab | Toss-up Lab | Likely Lab | Likely Lab | Likely Lab | Lean Lab | Lean Lab |
| Ealing North | Lab | Lab | Lab | Safe Lab | Safe Lab | Lean Lab | Lean Lab | Likely Lab | Likely Lab | Toss-up Lab | Toss-up Lab | Likely Lab | Lean Lab | Likely Lab | Lean Lab |
| Ealing Southall | Lab | Lab | Lab | Safe Lab | Safe Lab | Likely Lab | Likely Lab | Likely Lab | Likely Lab | Toss-up Lab | Safe Lab | Safe Lab | Likely Lab | Lean Lab | Likely Lab |
| Earley and Woodley | Cons | Lab | Lab | Safe Cons | Toss-up Cons | Toss-up Cons | Toss-up Cons | Toss-up Cons | Toss-up Cons | Toss-up Lab | Toss-up Cons | Lean Cons | Toss-up Cons | Toss-up Lab | Lean Cons |
| Easington | Lab | Lab | Lab | Safe Ref | Toss-up Ref | Lean Ref | Lean Ref | Lean Ref | Lean Ref | Safe Ref | Safe Ref | Lean Ref | Lean Ref | Likely Ref | Safe Ref |
| East Antrim | DUP | DUP | DUP | ||||||||||||
| East Grinstead and Uckfield | Cons | Cons | Cons | Safe Cons | Likely Cons | Likely Cons | Likely Cons | Likely Cons | Toss-up Cons | Lean Cons | Lean Cons | Lean Cons | Toss-up Cons | Toss-up Cons | Lean Cons |
| East Ham | Lab | Lab | Lab | Safe Lab | Safe Lab | Likely Lab | Safe Lab | Likely Lab | Safe Lab | Toss-up Lab | Likely Lab | Safe Lab | Likely Lab | Toss-up YP | Likely Lab |
| East Hampshire | Cons | Cons | Cons | Safe Cons | Toss-up Cons | Lean Cons | Lean Cons | Toss-up Cons | Lean LD | Toss-up Cons | Toss-up Cons | Toss-up Cons | Toss-up LD | Toss-up Ref | Toss-up Cons |
| East Kilbride and Strathaven | SNP | Lab | Lab | Lean SNP | Lean Lab | Toss-up Lab | Toss-up SNP | Toss-up Lab | Lean SNP | Toss-up Lab | Likely SNP | Toss-up SNP | Toss-up Lab | Toss-up SNP | Lean SNP |
| East Londonderry | DUP | DUP | DUP | ||||||||||||
| East Renfrewshire | SNP | Lab | Lab | Safe Lab | Toss-up Lab | Toss-up SNP | Toss-up SNP | Toss-up Lab | Toss-up Lab | Toss-up Lab | Toss-up SNP | Toss-up SNP | Lean Lab | Toss-up SNP | Lean SNP |
| East Surrey | Cons | Cons | Cons | Safe Cons | Lean Cons | Lean Cons | Likely Cons | Toss-up Cons | Toss-up Cons | Toss-up Ref | Lean Cons | Toss-up Ref | Toss-up Cons | Toss-up Ref | Toss-up Ref |
| East Thanet | Cons | Lab | Lab | Safe Ref | Lean Ref | Toss-up Ref | Toss-up Ref | Toss-up Ref | Lean Ref | Lean Ref | Likely Ref | Likely Ref | Lean Ref | Likely Ref | Likely Ref |
| East Wiltshire | Cons | Cons | Ref | Safe Cons | Lean Cons | Lean Cons | Likely Cons | Toss-up Cons | Toss-up Cons | Toss-up Ref | Toss-up Cons | Toss-up Ref | Toss-up Ref | Toss-up Ref | Toss-up Cons |
| East Worthing and Shoreham | Cons | Lab | Lab | Safe Lab | Lean Lab | Lean Lab | Toss-up Lab | Lean Lab | Toss-up Ref | Toss-up Lab | Toss-up Lab | Toss-up Ref | Toss-up Ref | Toss-up Ref | Lean Ref |
| Eastbourne | Cons | LD | LD | Safe LD | Likely LD | Lean LD | Likely LD | Lean LD | Safe LD | Lean LD | Likely LD | Likely LD | Safe LD | Toss-up LD | Lean LD |
| Eastleigh | Cons | LD | LD | Safe Cons | Toss-up Cons | Toss-up Cons | Lean LD | Toss-up Cons | Toss-up LD | Toss-up LD | Lean LD | Lean LD | Lean LD | Lean Ref | Toss-up Ref |
| Edinburgh East and Musselburgh | SNP | Lab | Lab | Safe Lab | Toss-up SNP | Lean SNP | Toss-up Lab | Toss-up SNP | Lean SNP | Toss-up SNP | Toss-up SNP | Toss-up SNP | Lean SNP | Lean SNP | Lean SNP |
| Edinburgh North and Leith | SNP | Lab | Lab | Safe Lab | Lean Lab | Toss-up SNP | Toss-up Lab | Toss-up SNP | Toss-up Lab | Toss-up Lab | Toss-up Lab | Toss-up SNP | Toss-up SNP | Toss-up SNP | Likely SNP |
| Edinburgh South | Lab | Lab | Lab | Safe Lab | Likely Lab | Likely Lab | Lean Lab | Likely Lab | Likely Lab | Likely Lab | Lean Lab | Lean Lab | Likely Lab | Toss-up Lab | Lean SNP |
| Edinburgh South West | SNP | Lab | Lab | Safe Lab | Toss-up Lab | Toss-up SNP | Toss-up SNP | Toss-up SNP | Toss-up Lab | Toss-up SNP | Lean Lab | Toss-up Ref | Lean SNP | Toss-up SNP | Lean SNP |
| Edinburgh West | LD | LD | LD | Safe LD | Safe LD | Safe LD | Safe LD | Safe LD | Safe LD | Safe LD | Likely LD | Likely LD | Safe LD | Safe LD | Safe LD |
| Edmonton and Winchmore Hill | Lab | Lab | Lab | Safe Lab | Safe Lab | Toss-up Lab | Likely Lab | Likely Lab | Likely Lab | Toss-up Lab | Likely Lab | Likely Lab | Lean Lab | Likely Lab | Lean Lab |
| Ellesmere Port and Bromborough | Lab | Lab | Lab | Safe Lab | Likely Lab | Toss-up Lab | Toss-up Ref | Lean Lab | Lean Lab | Toss-up Lab | Toss-up Lab | Toss-up Ref | Toss-up Lab | Toss-up Lab | Lean Ref |
| Eltham and Chislehurst | Cons | Lab | Lab | Safe Lab | Likely Lab | Toss-up Lab | Toss-up Lab | Toss-up Lab | Toss-up Lab | Toss-up Ref | Toss-up Lab | Toss-up Lab | Toss-up Lab | Toss-up Ref | Toss-up Ref |
| Ely and East Cambridgeshire | Cons | LD | LD | Safe LD | Toss-up LD | Toss-up Cons | Toss-up Cons | Toss-up Cons | Lean LD | Toss-up LD | Toss-up LD | Toss-up LD | Toss-up LD | Toss-up Ref | Toss-up Ref |
| Enfield North | Lab | Lab | Lab | Safe Lab | Safe Lab | Toss-up Lab | Likely Lab | Lean Lab | Lean Lab | Toss-up Lab | Lean Lab | Lean Lab | Lean Lab | Lean Lab | Lean Lab |
| Epping Forest | Cons | Cons | Cons | Safe Cons | Likely Cons | Likely Cons | Likely Cons | Likely Cons | Likely Cons | Toss-up Cons | Toss-up Cons | Lean Cons | Lean Cons | Lean Cons | Lean Cons |
| Epsom and Ewell | Cons | LD | LD | Lean Cons | Toss-up LD | Toss-up Cons | Toss-up LD | Toss-up Cons | Likely LD | Lean LD | Lean LD | Lean LD | Lean LD | Toss-up Ref | Toss-up Cons |
| Erewash | Cons | Lab | Lab | Likely Ref | Toss-up Ref | Lean Ref | Lean Ref | Lean Ref | Lean Ref | Lean Ref | Lean Ref | Likely Ref | Lean Ref | Safe Ref | Likely Ref |
| Erith and Thamesmead | Lab | Lab | Lab | Safe Lab | Safe Lab | Toss-up Lab | Likely Lab | Lean Lab | Likely Lab | Toss-up Ref | Lean Lab | Lean Lab | Lean Lab | Lean Lab | Toss-up Lab |
| Esher and Walton | Cons | LD | LD | Safe LD | Lean LD | Lean LD | Lean LD | Lean LD | Safe LD | Likely LD | Lean LD | Safe LD | Safe LD | Lean LD | Toss-up LD |
| Exeter | Lab | Lab | Lab | Safe Lab | Likely Lab | Lean Lab | Toss-up Lab | Likely Lab | Lean Lab | Toss-up Lab | Lean Lab | Toss-up Ref | Toss-up Lab | Lean Lab | Lean Ref |
| Exmouth and Exeter East | Cons | Cons | Cons | Safe Cons | Toss-up Cons | Toss-up Cons | Lean Cons | Toss-up Cons | Toss-up Ref | Lean Ref | Toss-up LD | Lean Ref | Toss-up Ref | Likely Ref | Lean Ref |
| Falkirk | SNP | Lab | Lab | Safe SNP | Lean SNP | Toss-up SNP | Toss-up SNP | Toss-up SNP | Toss-up SNP | Toss-up SNP | Likely SNP | Toss-up SNP | Lean SNP | Toss-up SNP | Toss-up SNP |
| Fareham and Waterlooville | Cons | Cons | Cons | Safe Cons | Lean Cons | Lean Cons | Toss-up Cons | Toss-up Cons | Toss-up Ref | Lean Ref | Toss-up Ref | Lean Ref | Toss-up Ref | Toss-up Ref | Toss-up Ref |
| Farnham and Bordon | Cons | Cons | Cons | Safe Cons | Toss-up Cons | Toss-up Cons | Lean Cons | Lean Cons | Lean LD | Toss-up Cons | Toss-up LD | Toss-up LD | Toss-up LD | Toss-up Ref | Toss-up Cons |
| Faversham and Mid Kent | Cons | Cons | Cons | Safe Cons | Toss-up Ref | Toss-up Cons | Toss-up Cons | Toss-up Ref | Lean Ref | Lean Ref | Toss-up Ref | Lean Ref | Toss-up Ref | Likely Ref | Toss-up Ref |
| Feltham and Heston | Lab | Lab | Lab | Safe Lab | Likely Lab | Toss-up Ref | Lean Lab | Toss-up Lab | Toss-up Lab | Lean Ref | Toss-up Lab | Toss-up Lab | Toss-up Lab | Toss-up Ref | Toss-up Lab |
| Fermanagh and South Tyrone | SF | SF | SF | ||||||||||||
| Filton and Bradley Stoke | Cons | Lab | Lab | Safe Lab | Likely Lab | Lean Lab | Toss-up Lab | Lean Lab | Toss-up Lab | Toss-up Lab | Lean Lab | Lean Ref | Toss-up Lab | Toss-up Lab | Lean Ref |
| Finchley and Golders Green | Cons | Lab | Lab | Safe Lab | Toss-up Lab | Toss-up Lab | Toss-up Cons | Toss-up Lab | Toss-up Lab | Lean Lab | Toss-up Cons | Toss-up Cons | Lean Lab | Toss-up Lab | Toss-up Cons |
| Folkestone and Hythe | Cons | Lab | Lab | Likely Ref | Toss-up Ref | Toss-up Ref | Toss-up Ref | Lean Ref | Likely Ref | Likely Ref | Lean Ref | Likely Ref | Likely Ref | Safe Ref | Likely Ref |
| Forest of Dean | Cons | Lab | Lab | Safe Cons | Toss-up Cons | Toss-up Cons | Toss-up Cons | Toss-up Ref | Lean Ref | Toss-up Ref | Lean Ref | Lean Ref | Likely Ref | Lean Ref | Lean Ref |
| Foyle | SDLP | SDLP | SDLP | ||||||||||||
| Frome and East Somerset | Cons | LD | LD | Safe LD | Toss-up LD | Toss-up LD | Toss-up LD | Toss-up LD | Toss-up LD | Toss-up LD | Toss-up LD | Toss-up LD | Toss-up LD | Toss-up LD | Toss-up Ref |
| Fylde | Cons | Cons | Cons | Safe Cons | Lean Cons | Toss-up Ref | Toss-up Cons | Toss-up Ref | Lean Ref | Lean Ref | Toss-up Ref | Likely Ref | Likely Ref | Likely Ref | Lean Ref |
| Gainsborough | Cons | Cons | Cons | Safe Cons | Toss-up Cons | Toss-up Ref | Toss-up Ref | Lean Ref | Toss-up Ref | Likely Ref | Lean Ref | Lean Ref | Lean Ref | Likely Ref | Lean Ref |
| Gateshead Central and Whickham | Lab | Lab | Lab | Safe Lab | Toss-up Lab | Toss-up Ref | Toss-up Ref | Toss-up Ref | Toss-up Ref | Lean Ref | Lean Ref | Lean Ref | Toss-up Ref | Toss-up Ref | Lean Ref |
| Gedling | Cons | Lab | Lab | Safe Lab | Lean Lab | Toss-up Lab | Toss-up Lab | Toss-up Ref | Toss-up Lab | Toss-up Ref | Toss-up Lab | Toss-up Ref | Toss-up Lab | Toss-up Ref | Lean Ref |
| Gillingham and Rainham | Cons | Lab | Lab | Safe Cons | Toss-up Lab | Toss-up Cons | Toss-up Ref | Toss-up Ref | Lean Ref | Likely Ref | Safe Ref | Likely Ref | Lean Ref | Likely Ref | Lean Ref |
| Glasgow East | SNP | Lab | Lab | Safe SNP | Toss-up SNP | Toss-up SNP | Toss-up Lab | Toss-up SNP | Safe SNP | Toss-up SNP | Toss-up SNP | Likely SNP | Safe SNP | Lean SNP | Toss-up SNP |
| Glasgow North | SNP | Lab | Lab | Likely SNP | Toss-up Lab | Toss-up SNP | Toss-up Lab | Toss-up SNP | Lean SNP | Toss-up SNP | Toss-up SNP | Lean SNP | Lean SNP | Lean SNP | Toss-up SNP |
| Glasgow North East | SNP | Lab | Lab | Safe SNP | Toss-up SNP | Toss-up SNP | Lean Lab | Toss-up SNP | Toss-up SNP | Toss-up SNP | Toss-up Lab | Lean SNP | Likely SNP | Lean SNP | Lean Lab |
| Glasgow South | SNP | Lab | Lab | Likely Lab | Toss-up Lab | Toss-up SNP | Toss-up SNP | Toss-up SNP | Lean SNP | Toss-up SNP | Toss-up SNP | Likely SNP | Lean SNP | Lean SNP | Safe SNP |
| Glasgow South West | SNP | Lab | Lab | Safe SNP | Toss-up SNP | Lean SNP | Toss-up Lab | Toss-up SNP | Likely SNP | Toss-up SNP | Toss-up SNP | Likely SNP | Likely SNP | Lean SNP | Lean SNP |
| Glasgow West | SNP | Lab | Lab | Lean Lab | Toss-up Lab | Toss-up SNP | Toss-up SNP | Toss-up Lab | Toss-up SNP | Toss-up Lab | Toss-up SNP | Lean SNP | Toss-up SNP | Toss-up SNP | Likely SNP |
| Glastonbury and Somerton | Cons | LD | LD | Likely LD | Toss-up LD | Toss-up LD | Toss-up LD | Toss-up LD | Likely LD | Toss-up LD | Toss-up LD | Toss-up LD | Lean LD | Toss-up LD | Toss-up LD |
| Glenrothes and Mid Fife | SNP | Lab | Lab | Safe SNP | Toss-up SNP | Lean SNP | Toss-up SNP | Toss-up SNP | Likely SNP | Toss-up SNP | Lean SNP | Toss-up SNP | Lean SNP | Lean SNP | Lean SNP |
| Gloucester | Cons | Lab | Lab | Likely Cons | Toss-up Lab | Toss-up Cons | Toss-up Ref | Toss-up Cons | Toss-up Ref | Lean Ref | Lean Ref | Likely Ref | Toss-up Ref | Likely Ref | Lean Ref |
| Godalming and Ash | Cons | Cons | Cons | Safe Cons | Lean Cons | Toss-up Cons | Toss-up Cons | Lean Cons | Toss-up LD | Toss-up LD | Toss-up LD | Toss-up Cons | Toss-up LD | Toss-up LD | Lean Cons |
| Goole and Pocklington | Cons | Cons | Cons | Safe Cons | Lean Cons | Toss-up Cons | Toss-up Cons | Toss-up Ref | Toss-up Ref | Lean Ref | Toss-up Ref | Lean Ref | Toss-up Ref | Lean Ref | Lean Ref |
| Gordon and Buchan | Cons | Cons | Cons | Safe SNP | Lean Cons | Toss-up SNP | Toss-up SNP | Toss-up SNP | Toss-up Cons | Toss-up SNP | Toss-up SNP | Toss-up Ref | Toss-up SNP | Toss-up SNP | Toss-up Ref |
| Gorton and Denton | Lab | Lab | Ind | Safe Lab | Safe Lab | Lean Lab | Lean Lab | Toss-up Lab | Lean Lab | Lean Ref | Toss-up Lab | Toss-up Lab | Toss-up Lab | Toss-up Lab | Toss-up Ref |
| Gosport | Cons | Cons | Cons | Safe Cons | Lean Cons | Lean Cons | Toss-up Cons | Toss-up Cons | Toss-up Ref | Lean Ref | Toss-up Ref | Lean Ref | Toss-up Ref | Toss-up Ref | Toss-up Ref |
| Gower | Lab | Lab | Lab | Safe Lab | Lean Lab | Toss-up Ref | Toss-up Lab | Toss-up Lab | Toss-up Ref | Toss-up Lab | Lean Ref | Toss-up Ref | Toss-up Ref | Toss-up Ref | Toss-up Ref |
| Grantham and Bourne | Cons | Cons | Cons | Safe Cons | Toss-up Cons | Toss-up Ref | Toss-up Cons | Toss-up Ref | Toss-up Ref | Likely Ref | Lean Ref | Lean Ref | Lean Ref | Likely Ref | Lean Ref |
| Gravesham | Cons | Lab | Lab | Safe Cons | Toss-up Lab | Toss-up Cons | Toss-up Cons | Toss-up Ref | Lean Ref | Likely Ref | Lean Ref | Lean Ref | Lean Ref | Likely Ref | Lean Ref |
| Great Grimsby and Cleethorpes | Cons | Lab | Lab | Safe Ref | Lean Ref | Likely Ref | Safe Ref | Likely Ref | Likely Ref | Safe Ref | Safe Ref | Safe Ref | Likely Ref | Safe Ref | Safe Ref |
| Great Yarmouth | Cons | Ref | Ind | Safe Ref | Safe Ref | Lean Ref | Likely Ref | Likely Ref | Safe Ref | Safe Ref | Safe Ref | Safe Ref | Safe Ref | Safe Ref | Safe Ref |
| Greenwich and Woolwich | Lab | Lab | Lab | Safe Lab | Safe Lab | Likely Lab | Safe Lab | Likely Lab | Safe Lab | Lean Lab | Safe Lab | Safe Lab | Likely Lab | Lean Lab | Likely Lab |
| Guildford | Cons | LD | LD | Safe LD | Lean LD | Toss-up LD | Likely LD | Toss-up LD | Likely LD | Likely LD | Lean LD | Likely LD | Likely LD | Likely LD | Toss-up LD |
| Hackney North and Stoke Newington | Lab | Lab | Ind | Safe Lab | Safe Lab | Likely Lab | Safe Lab | Likely Lab | Likely Lab | Toss-up Lab | Likely Lab | Safe Lab | Lean Lab | Lean Lab | Toss-up Lab |
| Hackney South and Shoreditch | Lab | Lab | Lab | Safe Lab | Safe Lab | Lean Lab | Safe Lab | Lean Lab | Likely Lab | Toss-up Lab | Likely Lab | Likely Lab | Likely Lab | Lean Lab | Toss-up Lab |
| Halesowen | Cons | Lab | Lab | Likely Cons | Toss-up Lab | Toss-up Cons | Toss-up Ref | Toss-up Ref | Lean Ref | Likely Ref | Likely Ref | Likely Ref | Likely Ref | Likely Ref | Likely Ref |
| Halifax | Lab | Lab | Lab | Lean Ref | Toss-up Ref | Lean Ref | Toss-up Ref | Lean Ref | Lean Ref | Likely Ref | Likely Ref | Likely Ref | Lean Ref | Likely Ref | Lean Ref |
| Hamble Valley | Cons | Cons | Cons | Safe Cons | Lean Cons | Lean Cons | Toss-up Cons | Lean Cons | Toss-up LD | Toss-up Ref | Toss-up Cons | Toss-up Cons | Toss-up Cons | Lean Ref | Toss-up Ref |
| Hamilton and Clyde Valley | SNP | Lab | Lab | Lean SNP | Lean Lab | Toss-up Lab | Toss-up Lab | Toss-up Lab | Toss-up Lab | Lean Lab | Lean SNP | Toss-up SNP | Toss-up Lab | Toss-up Ref | Toss-up SNP |
| Hammersmith and Chiswick | Lab | Lab | Lab | Safe Lab | Safe Lab | Likely Lab | Likely Lab | Likely Lab | Likely Lab | Likely Lab | Likely Lab | Likely Lab | Likely Lab | Likely Lab | Likely Lab |
| Hampstead and Highgate | Lab | Lab | Lab | Safe Lab | Safe Lab | Likely Lab | Likely Lab | Likely Lab | Likely Lab | Lean Lab | Likely Lab | Lean Lab | Likely Lab | Lean Lab | Lean Lab |
| Harborough, Oadby and Wigston | Cons | Cons | Cons | Safe Cons | Toss-up Cons | Toss-up Cons | Lean Cons | Lean Cons | Toss-up Cons | Toss-up Ref | Toss-up Ref | Toss-up Cons | Toss-up Cons | Lean Ref | Toss-up Ref |
| Harlow | Cons | Lab | Lab | Safe Cons | Toss-up Cons | Toss-up Cons | Toss-up Ref | Toss-up Ref | Lean Ref | Likely Ref | Lean Ref | Lean Ref | Lean Ref | Likely Ref | Lean Ref |
| Harpenden and Berkhamsted | Cons | LD | LD | Safe LD | Likely LD | Toss-up LD | Toss-up LD | Lean LD | Safe LD | Likely LD | Lean LD | Likely LD | Safe LD | Lean LD | Toss-up Cons |
| Harrogate and Knaresborough | Cons | LD | LD | Safe LD | Lean LD | Toss-up LD | Lean LD | Toss-up LD | Likely LD | Lean LD | Likely LD | Lean LD | Likely LD | Lean LD | Toss-up LD |
| Harrow East | Cons | Cons | Cons | Safe Cons | Likely Cons | Safe Cons | Safe Cons | Safe Cons | Safe Cons | Lean Cons | Likely Cons | Likely Cons | Safe Cons | Likely Cons | Safe Cons |
| Harrow West | Lab | Lab | Lab | Safe Lab | Likely Lab | Toss-up Cons | Toss-up Lab | Toss-up Lab | Lean Lab | Toss-up Lab | Lean Lab | Lean Lab | Toss-up Lab | Toss-up Lab | Toss-up Lab |
| Hartlepool | Lab | Lab | Lab | Safe Ref | Toss-up Lab | Likely Ref | Likely Ref | Lean Ref | Lean Ref | Likely Ref | Safe Ref | Likely Ref | Lean Ref | Likely Ref | Safe Ref |
| Harwich and North Essex | Cons | Cons | Cons | Safe Cons | Toss-up Cons | Toss-up Cons | Toss-up Cons | Toss-up Ref | Lean Ref | Toss-up Ref | Toss-up Ref | Lean Ref | Lean Ref | Likely Ref | Lean Ref |
| Hastings and Rye | Cons | Lab | Lab | Lean Lab | Lean Lab | Toss-up Lab | Toss-up Lab | Toss-up Lab | Toss-up Ref | Toss-up Ref | Toss-up Ref | Toss-up Ref | Toss-up Ref | Toss-up Ref | Toss-up Ref |
| Havant | Cons | Cons | Cons | Safe Cons | Toss-up Ref | Toss-up Ref | Toss-up Ref | Toss-up Ref | Lean Ref | Likely Ref | Lean Ref | Likely Ref | Lean Ref | Likely Ref | Lean Ref |
| Hayes and Harlington | Lab | Lab | Lab | Safe Lab | Safe Lab | Toss-up Lab | Likely Lab | Lean Lab | Likely Lab | Toss-up Ref | Likely Lab | Likely Lab | Lean Lab | Toss-up Lab | Lean Lab |
| Hazel Grove | Cons | LD | LD | Safe LD | Lean LD | Toss-up Ref | Lean LD | Toss-up Ref | Lean LD | Toss-up LD | Lean LD | Toss-up LD | Lean LD | Toss-up LD | Toss-up Ref |
| Hemel Hempstead | Cons | Lab | Lab | Likely Cons | Toss-up Lab | Toss-up Cons | Toss-up Cons | Toss-up Cons | Toss-up Ref | Toss-up Ref | Toss-up Cons | Lean Ref | Toss-up Ref | Likely Ref | Lean Ref |
| Hendon | Cons | Lab | Lab | Likely Cons | Toss-up Cons | Toss-up Cons | Toss-up Cons | Toss-up Cons | Toss-up Cons | Toss-up Ref | Lean Cons | Toss-up Cons | Toss-up Cons | Toss-up Ref | Lean Cons |
| Henley and Thame | Cons | LD | LD | Lean LD | Lean LD | Toss-up LD | Toss-up LD | Toss-up LD | Safe LD | Lean LD | Lean LD | Lean LD | Likely LD | Lean LD | Toss-up Cons |
| Hereford and South Herefordshire | Cons | Cons | Cons | Safe Cons | Toss-up Cons | Toss-up Cons | Toss-up Cons | Toss-up Ref | Toss-up Ref | Lean Ref | Toss-up Ref | Lean Ref | Toss-up Ref | Likely Ref | Toss-up Ref |
| Herne Bay and Sandwich | Cons | Cons | Cons | Safe Cons | Toss-up Ref | Toss-up Cons | Toss-up Ref | Toss-up Cons | Lean Ref | Lean Ref | Lean Ref | Lean Ref | Lean Ref | Lean Ref | Lean Ref |
| Hertford and Stortford | Cons | Lab | Lab | Lean Cons | Toss-up Cons | Toss-up Cons | Toss-up Cons | Toss-up Cons | Toss-up Ref | Toss-up Ref | Toss-up Cons | Toss-up Ref | Toss-up Ref | Lean Ref | Toss-up Ref |
| Hertsmere | Cons | Cons | Cons | Safe Cons | Likely Cons | Likely Cons | Likely Cons | Lean Cons | Lean Cons | Toss-up Ref | Toss-up Cons | Lean Cons | Lean Cons | Toss-up Cons | Lean Cons |
| Hexham | Cons | Lab | Lab | Safe Cons | Toss-up Lab | Toss-up Cons | Lean Cons | Toss-up Cons | Toss-up Lab | Toss-up Lab | Toss-up Cons | Toss-up Cons | Toss-up Lab | Toss-up Ref | Toss-up Cons |
| Heywood and Middleton North | Lab | Lab | Lab | Safe Ref | Toss-up Lab | Likely Ref | Likely Ref | Lean Ref | Toss-up Ref | Likely Ref | Safe Ref | Safe Ref | Lean Ref | Likely Ref | Safe Ref |
| High Peak | Cons | Lab | Lab | Safe Lab | Lean Lab | Toss-up Lab | Toss-up Cons | Toss-up Lab | Toss-up Lab | Toss-up Ref | Toss-up Lab | Toss-up Ref | Toss-up Lab | Toss-up Ref | Lean Ref |
| Hinckley and Bosworth | Cons | Cons | Cons | Safe Cons | Lean Cons | Toss-up Ref | Toss-up Cons | Toss-up Ref | Toss-up LD | Lean Ref | Toss-up Ref | Lean Ref | Toss-up Ref | Likely Ref | Lean Ref |
| Hitchin | Cons | Lab | Lab | Safe Lab | Toss-up Lab | Toss-up Lab | Toss-up Cons | Toss-up Lab | Toss-up Lab | Toss-up Lab | Toss-up Lab | Toss-up Lab | Toss-up Ref | Toss-up Lab | Toss-up Ref |
| Holborn and St Pancras | Lab | Lab | Lab | Safe Lab | Safe Lab | Likely Lab | Safe Lab | Likely Lab | Safe Lab | Toss-up Lab | Likely Lab | Likely Lab | Likely Lab | Lean Lab | Lean Lab |
| Honiton and Sidmouth | Cons | LD | LD | Safe LD | Toss-up LD | Toss-up LD | Toss-up LD | Toss-up LD | Likely LD | Lean LD | Lean LD | Toss-up LD | Lean LD | Toss-up LD | Toss-up Ref |
| Hornchurch and Upminster | Cons | Cons | Cons | Safe Cons | Toss-up Cons | Toss-up Ref | Toss-up Ref | Toss-up Ref | Likely Ref | Likely Ref | Likely Ref | Lean Ref | Likely Ref | Likely Ref | Likely Ref |
| Hornsey and Friern Barnet | Lab | Lab | Lab | Safe Lab | Safe Lab | Safe Lab | Safe Lab | Safe Lab | Safe Lab | Likely Lab | Safe Lab | Safe Lab | Likely Lab | Likely Lab | Lean Lab |
| Horsham | Cons | LD | LD | Safe Cons | Toss-up Cons | Toss-up Cons | Toss-up LD | Toss-up Cons | Lean LD | Toss-up Cons | Toss-up LD | Toss-up LD | Lean LD | Toss-up LD | Toss-up Cons |
| Houghton and Sunderland South | Lab | Lab | Lab | Safe Ref | Toss-up Ref | Likely Ref | Likely Ref | Lean Ref | Lean Ref | Likely Ref | Safe Ref | Likely Ref | Lean Ref | Likely Ref | Safe Ref |
| Hove and Portslade | Lab | Lab | Lab | Safe Lab | Safe Lab | Likely Lab | Lean Lab | Likely Lab | Likely Lab | Lean Lab | Likely Lab | Likely Lab | Likely Lab | Lean Lab | Toss-up Lab |
| Huddersfield | Lab | Lab | Lab | Safe Lab | Toss-up Lab | Toss-up Ref | Toss-up Lab | Toss-up Ref | Toss-up Green | Lean Ref | Toss-up Green | Toss-up Green | Toss-up Green | Lean Ref | Toss-up Ref |
| Huntingdon | Cons | Cons | Cons | Safe Cons | Lean Cons | Lean Cons | Lean Cons | Toss-up Cons | Toss-up Cons | Toss-up Ref | Toss-up Cons | Toss-up Ref | Toss-up Cons | Lean Ref | Toss-up Ref |
| Hyndburn | Cons | Lab | Lab | Likely Ref | Toss-up Ref | Lean Ref | Likely Ref | Lean Ref | Lean Ref | Safe Ref | Safe Ref | Likely Ref | Likely Ref | Safe Ref | Likely Ref |
| Ilford North | Lab | Lab | Lab | Likely Other | Likely Other | Toss-up Cons | Toss-up Ind | Toss-up Lab | Lean Lab | Toss-up Other | Toss-up Ind | Lean Ind | Toss-up Ref | Toss-up YP | Lean Lab |
| Ilford South | Lab | Lab | Lab | Safe Lab | Toss-up Lab | Lean Lab | Likely Lab | Lean Lab | Likely Lab | Toss-up Ref | Lean Lab | Toss-up Ind | Lean Lab | Toss-up YP | Lean Lab |
| Inverclyde and Renfrewshire West | SNP | Lab | Lab | Safe SNP | Toss-up Lab | Toss-up SNP | Toss-up SNP | Toss-up Lab | Lean SNP | Toss-up Lab | Likely SNP | Lean SNP | Lean SNP | Toss-up SNP | Toss-up SNP |
| Inverness, Skye and West Ross-shire | SNP | LD | LD | Likely SNP | Toss-up SNP | Toss-up SNP | Lean LD | Toss-up LD | Toss-up SNP | Toss-up LD | Lean SNP | Toss-up SNP | Toss-up SNP | Toss-up LD | Toss-up LD |
| Ipswich | Cons | Lab | Lab | Safe Lab | Lean Lab | Toss-up Lab | Toss-up Lab | Toss-up Lab | Toss-up Lab | Toss-up Ref | Toss-up Ref | Toss-up Ref | Toss-up Lab | Toss-up Ref | Toss-up Ref |
| Isle of Wight East | Cons | Cons | Cons | Safe Cons | Toss-up Ref | Toss-up Ref | Toss-up Ref | Toss-up Ref | Lean Ref | Lean Ref | Lean Ref | Lean Ref | Lean Ref | Lean Ref | Lean Ref |
| Isle of Wight West | Cons | Lab | Lab | Safe Cons | Lean Ref | Toss-up Cons | Toss-up Ref | Toss-up Ref | Lean Ref | Toss-up Ref | Lean Ref | Lean Ref | Lean Ref | Likely Ref | Lean Ref |
| Islington North | Lab | Ind | Ind | Likely Other | Toss-up Other | Toss-up Other | Toss-up Ind | Lean Other | Toss-up Other | Likely Other | Toss-up Ind | Toss-up Ind | Lean Other | Lean YP | Toss-up Other |
| Islington South and Finsbury | Lab | Lab | Lab | Safe Lab | Safe Lab | Likely Lab | Safe Lab | Likely Lab | Likely Lab | Toss-up Lab | Likely Lab | Likely Lab | Lean Lab | Lean Lab | Lean Lab |
| Jarrow and Gateshead East | Lab | Lab | Lab | Likely Ref | Toss-up Lab | Toss-up Ref | Lean Ref | Toss-up Ref | Toss-up Ref | Likely Ref | Likely Ref | Lean Ref | Lean Ref | Lean Ref | Safe Ref |
| Keighley and Ilkley | Cons | Cons | Cons | Safe Cons | Lean Cons | Toss-up Cons | Lean Cons | Toss-up Cons | Toss-up Cons | Lean Ref | Toss-up Cons | Toss-up Cons | Toss-up Cons | Lean Ref | Lean Cons |
| Kenilworth and Southam | Cons | Cons | Cons | Safe Cons | Lean Cons | Likely Cons | Likely Cons | Lean Cons | Toss-up Cons | Toss-up Cons | Lean Cons | Toss-up Cons | Toss-up Cons | Toss-up Cons | Toss-up Cons |
| Kensington and Bayswater | Lab | Lab | Lab | Safe Lab | Toss-up Lab | Toss-up Cons | Toss-up Lab | Toss-up Lab | Toss-up Lab | Toss-up Lab | Toss-up Cons | Toss-up Lab | Toss-up Lab | Toss-up Lab | Toss-up Cons |
| Kettering | Cons | Lab | Lab | Safe Cons | Toss-up Lab | Toss-up Ref | Toss-up Cons | Toss-up Ref | Toss-up Ref | Likely Ref | Toss-up Ref | Lean Ref | Lean Ref | Likely Ref | Lean Ref |
| Kilmarnock and Loudoun | SNP | Lab | Lab | Safe SNP | Toss-up SNP | Toss-up SNP | Toss-up SNP | Toss-up SNP | Lean SNP | Toss-up SNP | Likely SNP | Lean SNP | Likely SNP | Toss-up SNP | Toss-up SNP |
| Kingston and Surbiton | LD | LD | LD | Safe LD | Safe LD | Likely LD | Safe LD | Likely LD | Safe LD | Lean LD | Likely LD | Safe LD | Safe LD | Likely LD | Likely LD |
| Kingston upon Hull East | Lab | Lab | Lab | Safe Ref | Likely Ref | Likely Ref | Safe Ref | Likely Ref | Lean Ref | Safe Ref | Safe Ref | Safe Ref | Likely Ref | Likely Ref | Safe Ref |
| Kingston upon Hull North and Cottingham | Lab | Lab | Lab | Safe Lab | Lean Lab | Toss-up Ref | Lean Ref | Toss-up Ref | Toss-up Lab | Lean Ref | Likely Ref | Lean Ref | Toss-up Ref | Toss-up Ref | Likely Ref |
| Kingston upon Hull West and Haltemprice | Cons | Lab | Lab | Safe Ref | Toss-up Lab | Toss-up Ref | Likely Ref | Lean Ref | Toss-up Ref | Likely Ref | Safe Ref | Likely Ref | Lean Ref | Likely Ref | Safe Ref |
| Kingswinford and South Staffordshire | Cons | Cons | Cons | Safe Cons | Lean Cons | Lean Cons | Toss-up Cons | Toss-up Cons | Lean Ref | Lean Ref | Toss-up Ref | Lean Ref | Lean Ref | Lean Ref | Lean Ref |
| Knowsley | Lab | Lab | Lab | Safe Lab | Safe Lab | Likely Lab | Likely Lab | Likely Lab | Likely Lab | Toss-up Ref | Toss-up Lab | Lean Lab | Likely Lab | Toss-up Lab | Toss-up Lab |
| Lagan Valley | DUP | Alliance | Alliance | ||||||||||||
| Lancaster and Wyre | Cons | Lab | Lab | Safe Lab | Likely Lab | Toss-up Lab | Toss-up Ref | Toss-up Ref | Toss-up Lab | Toss-up Ref | Toss-up Ref | Lean Ref | Toss-up Lab | Toss-up Ref | Lean Ref |
| Leeds Central and Headingley | Lab | Lab | Lab | Safe Lab | Lean Lab | Lean Lab | Lean Lab | Toss-up Lab | Toss-up Lab | Toss-up Lab | Toss-up Ref | Toss-up Ref | Toss-up Lab | Toss-up Lab | Lean Ref |
| Leeds East | Lab | Lab | Lab | Safe Lab | Lean Lab | Toss-up Ref | Toss-up Lab | Toss-up Ref | Toss-up Lab | Lean Ref | Lean Ref | Lean Ref | Toss-up Ref | Toss-up Ref | Lean Ref |
| Leeds North East | Lab | Lab | Lab | Safe Lab | Safe Lab | Likely Lab | Likely Lab | Likely Lab | Likely Lab | Toss-up Lab | Safe Lab | Lean Lab | Likely Lab | Lean Lab | Lean Lab |
| Leeds North West | Cons | Lab | Lab | Safe Lab | Lean Lab | Likely Lab | Toss-up Lab | Lean Lab | Toss-up Lab | Toss-up Lab | Lean Lab | Toss-up Ref | Toss-up Lab | Lean Lab | Toss-up Lab |
| Leeds South | Lab | Lab | Lab | Safe Lab | Likely Lab | Lean Lab | Likely Lab | Lean Lab | Lean Lab | Lean Ref | Lean Ref | Toss-up Lab | Lean Lab | Toss-up Ref | Toss-up Ref |
| Leeds South West and Morley | Cons | Lab | Lab | Likely Ref | Toss-up Lab | Toss-up Ref | Toss-up Ref | Lean Ref | Toss-up Ref | Lean Ref | Lean Ref | Likely Ref | Toss-up Ref | Lean Ref | Likely Ref |
| Leeds West and Pudsey | Lab | Lab | Lab | Safe Lab | Lean Lab | Toss-up Lab | Toss-up Lab | Toss-up Lab | Toss-up Lab | Toss-up Ref | Toss-up Ref | Toss-up Ref | Toss-up Lab | Toss-up Lab | Lean Ref |
| Leicester East | Lab | Cons | Cons | Safe Cons | Toss-up Cons | Toss-up Cons | Toss-up Cons | Lean Cons | Toss-up Cons | Lean Ref | Toss-up Cons | Toss-up Cons | Likely Cons | Lean Ref | Toss-up Cons |
| Leicester South | Lab | Ind | Ind | Safe Other | Toss-up Lab | Toss-up Lab | Likely Ind | Toss-up Other | Lean Lab | Toss-up Other | Toss-up Ind | Lean Ind | Toss-up Other | Lean YP | Lean Other |
| Leicester West | Lab | Lab | Lab | Safe Lab | Likely Lab | Toss-up Ref | Toss-up Lab | Toss-up Ref | Toss-up Lab | Likely Ref | Lean Ref | Lean Ref | Toss-up Lab | Toss-up Ref | Lean Ref |
| Leigh and Atherton | Cons | Lab | Lab | Lean Ref | Toss-up Lab | Toss-up Ref | Lean Ref | Lean Ref | Toss-up Ref | Likely Ref | Likely Ref | Likely Ref | Lean Ref | Likely Ref | Safe Ref |
| Lewes | Cons | LD | LD | Safe LD | Likely LD | Lean LD | Lean LD | Lean LD | Safe LD | Lean LD | Likely LD | Likely LD | Likely LD | Lean LD | Toss-up LD |
| Lewisham East | Lab | Lab | Lab | Safe Lab | Safe Lab | Likely Lab | Safe Lab | Safe Lab | Safe Lab | Toss-up Lab | Safe Lab | Safe Lab | Likely Lab | Lean Lab | Likely Lab |
| Lewisham North | Lab | Lab | Lab | Safe Lab | Safe Lab | Lean Lab | Safe Lab | Likely Lab | Safe Lab | Toss-up Lab | Likely Lab | Likely Lab | Likely Lab | Lean Lab | Lean Lab |
| Lewisham West and East Dulwich | Lab | Lab | Lab | Safe Lab | Safe Lab | Likely Lab | Safe Lab | Likely Lab | Likely Lab | Lean Lab | Likely Lab | Likely Lab | Likely Lab | Likely Lab | Likely Lab |
| Leyton and Wanstead | Lab | Lab | Lab | Safe Lab | Safe Lab | Likely Lab | Likely Lab | Likely Lab | Likely Lab | Toss-up Lab | Likely Lab | Likely Lab | Lean Lab | Lean Lab | Lean Lab |
| Lichfield | Cons | Lab | Lab | Safe Cons | Toss-up Cons | Lean Cons | Toss-up Cons | Toss-up Cons | Lean Ref | Lean Ref | Toss-up Ref | Lean Ref | Lean Ref | Lean Ref | Lean Ref |
| Lincoln | Cons | Lab | Lab | Safe Lab | Lean Lab | Toss-up Lab | Toss-up Ref | Toss-up Ref | Toss-up Lab | Lean Ref | Lean Ref | Lean Ref | Toss-up Ref | Lean Ref | Lean Ref |
| Liverpool Garston | Lab | Lab | Lab | Safe Lab | Safe Lab | Likely Lab | Likely Lab | Likely Lab | Likely Lab | Toss-up Lab | Safe Lab | Lean Lab | Lean Lab | Likely Lab | Lean Lab |
| Liverpool Riverside | Lab | Lab | Lab | Safe Lab | Safe Lab | Likely Lab | Likely Lab | Likely Lab | Likely Lab | Toss-up Lab | Toss-up Lab | Lean Lab | Likely Lab | Toss-up Lab | Toss-up Lab |
| Liverpool Walton | Lab | Lab | Lab | Safe Lab | Safe Lab | Likely Lab | Likely Lab | Likely Lab | Likely Lab | Toss-up Ref | Lean Lab | Likely Lab | Likely Lab | Lean Lab | Lean Lab |
| Liverpool Wavertree | Lab | Lab | Lab | Safe Lab | Safe Lab | Safe Lab | Safe Lab | Likely Lab | Likely Lab | Lean Lab | Likely Lab | Lean Lab | Likely Lab | Lean Lab | Lean Lab |
| Liverpool West Derby | Lab | Lab | Lab | Safe Lab | Safe Lab | Likely Lab | Likely Lab | Likely Lab | Likely Lab | Toss-up Lab | Likely Lab | Likely Lab | Likely Lab | Lean Lab | Lean Lab |
| Livingston | SNP | Lab | Lab | Safe SNP | Toss-up SNP | Lean SNP | Lean SNP | Toss-up SNP | Lean SNP | Toss-up SNP | Likely SNP | Toss-up Ref | Likely SNP | Lean SNP | Toss-up SNP |
| Llanelli | Lab | Lab | Lab | Lean Ref | Likely Ref | Likely Ref | Likely Ref | Lean Ref | Toss-up Ref | Lean Ref | Likely Ref | Lean Ref | Likely Ref | Lean Ref | Likely Ref |
| Lothian East | SNP | Lab | Lab | Safe Lab | Likely Lab | Lean Lab | Likely Lab | Lean Lab | Lean Lab | Lean Lab | Lean Lab | Lean Lab | Lean Lab | Toss-up Ref | Toss-up Ref |
| Loughborough | Cons | Lab | Lab | Lean Cons | Toss-up Lab | Toss-up Lab | Toss-up Ref | Toss-up Ref | Toss-up Lab | Lean Ref | Toss-up Lab | Lean Ref | Toss-up Ref | Lean Ref | Lean Ref |
| Louth and Horncastle | Cons | Cons | Cons | Safe Cons | Toss-up Cons | Lean Ref | Toss-up Ref | Lean Ref | Likely Ref | Likely Ref | Likely Ref | Likely Ref | Likely Ref | Likely Ref | Lean Ref |
| Lowestoft | Cons | Lab | Lab | Safe Ref | Lean Ref | Toss-up Ref | Lean Ref | Toss-up Ref | Likely Ref | Likely Ref | Likely Ref | Likely Ref | Safe Ref | Safe Ref | Likely Ref |
| Luton North | Lab | Lab | Lab | Safe Lab | Toss-up Lab | Toss-up Ref | Toss-up Lab | Toss-up Lab | Toss-up Lab | Lean Ref | Toss-up Ref | Toss-up Ref | Toss-up Ref | Toss-up Ref | Toss-up Ref |
| Luton South and South Bedfordshire | Lab | Lab | Lab | Safe Lab | Toss-up Lab | Toss-up Ref | Toss-up Lab | Toss-up Lab | Toss-up Lab | Lean Ref | Toss-up Ref | Toss-up Ref | Toss-up Ref | Lean Ref | Toss-up Ref |
| Macclesfield | Cons | Lab | Lab | Safe Lab | Lean Lab | Lean Lab | Toss-up Cons | Toss-up Lab | Toss-up Lab | Toss-up Lab | Toss-up Lab | Lean Ref | Toss-up Ref | Toss-up Lab | Lean Ref |
| Maidenhead | Cons | LD | LD | Safe Cons | Toss-up Cons | Toss-up Cons | Toss-up LD | Toss-up Cons | Likely LD | Toss-up LD | Toss-up LD | Toss-up LD | Lean LD | Toss-up LD | Toss-up Cons |
| Maidstone and Malling | Cons | Cons | Cons | Safe Cons | Toss-up Cons | Toss-up Cons | Toss-up Cons | Toss-up Cons | Toss-up Ref | Lean Ref | Toss-up Ref | Lean Ref | Toss-up Ref | Likely Ref | Toss-up Ref |
| Makerfield | Lab | Lab | Lab | Safe Ref | Toss-up Lab | Likely Ref | Likely Ref | Lean Ref | Lean Ref | Likely Ref | Safe Ref | Safe Ref | Lean Ref | Likely Ref | Safe Ref |
| Maldon | Cons | Cons | Cons | Safe Cons | Toss-up Cons | Toss-up Cons | Toss-up Cons | Toss-up Ref | Toss-up Ref | Lean Ref | Toss-up Ref | Toss-up Ref | Lean Ref | Lean Ref | Toss-up Ref |
| Manchester Central | Lab | Lab | Lab | Safe Lab | Safe Lab | Lean Lab | Likely Lab | Lean Lab | Likely Lab | Toss-up Ref | Toss-up Lab | Toss-up Ref | Lean Lab | Toss-up Ref | Toss-up Ref |
| Manchester Rusholme | Lab | Lab | Lab | Safe Lab | Likely Lab | Lean Lab | Safe Lab | Toss-up Lab | Lean Lab | Toss-up Green | Lean Lab | Lean Lab | Lean Lab | Toss-up Green | Toss-up Green |
| Manchester Withington | Lab | Lab | Lab | Safe Lab | Safe Lab | Safe Lab | Likely Lab | Lean Lab | Lean Lab | Lean Lab | Safe Lab | Likely Lab | Lean Lab | Toss-up Lab | Toss-up Lab |
| Mansfield | Cons | Lab | Lab | Lean Ref | Toss-up Ref | Lean Ref | Likely Ref | Lean Ref | Lean Ref | Safe Ref | Safe Ref | Likely Ref | Likely Ref | Safe Ref | Safe Ref |
| Melksham and Devizes | Cons | LD | LD | Likely LD | Toss-up Cons | Toss-up LD | Toss-up Cons | Toss-up Cons | Lean LD | Toss-up LD | Toss-up LD | Toss-up LD | Lean LD | Toss-up Ref | Toss-up Cons |
| Melton and Syston | Cons | Cons | Cons | Safe Cons | Lean Cons | Toss-up Ref | Toss-up Cons | Toss-up Ref | Toss-up Ref | Likely Ref | Toss-up Ref | Toss-up Ref | Toss-up Ref | Lean Ref | Lean Ref |
| Meriden and Solihull East | Cons | Cons | Cons | Safe Cons | Toss-up Cons | Lean Cons | Toss-up Ref | Toss-up Cons | Toss-up Ref | Lean Ref | Toss-up Ref | Lean Ref | Toss-up Ref | Toss-up Ref | Toss-up Ref |
| Merthyr Tydfil and Aberdare | Lab | Lab | Lab | Lean Lab | Toss-up Lab | Toss-up Ref | Lean Ref | Toss-up Ref | Toss-up Ref | Lean Ref | Likely Ref | Lean Ref | Lean Ref | Likely Ref | Lean Ref |
| Mid and South Pembrokeshire | Cons | Lab | Lab | Likely Cons | Toss-up Cons | Toss-up Ref | Toss-up Ref | Toss-up Ref | Lean Ref | Lean Ref | Likely Ref | Likely Ref | Lean Ref | Likely Ref | Toss-up Ref |
| Mid Bedfordshire | Cons | Cons | Cons | Safe Cons | Lean Cons | Lean Cons | Lean Cons | Toss-up Cons | Toss-up Ref | Toss-up Ref | Toss-up Cons | Toss-up Ref | Toss-up Ref | Lean Ref | Lean Ref |
| Mid Buckinghamshire | Cons | Cons | Cons | Safe Cons | Lean Cons | Likely Cons | Likely Cons | Toss-up Cons | Toss-up Cons | Toss-up Cons | Toss-up Cons | Toss-up Cons | Toss-up Cons | Toss-up Cons | Toss-up Cons |
| Mid Cheshire | Cons | Lab | Lab | Safe Lab | Lean Lab | Toss-up Lab | Toss-up Ref | Toss-up Ref | Toss-up Ref | Lean Ref | Toss-up Ref | Likely Ref | Toss-up Ref | Lean Ref | Likely Ref |
| Mid Derbyshire | Cons | Lab | Lab | Safe Cons | Toss-up Cons | Toss-up Ref | Toss-up Cons | Toss-up Cons | Toss-up Ref | Toss-up Ref | Toss-up Ref | Lean Ref | Lean Ref | Likely Ref | Lean Ref |
| Mid Dorset and North Poole | Cons | LD | LD | Safe Cons | Toss-up Cons | Toss-up Cons | Lean LD | Toss-up Cons | Likely LD | Toss-up LD | Toss-up LD | Toss-up LD | Likely LD | Toss-up LD | Toss-up Cons |
| Mid Dunbartonshire | SNP | LD | LD | Safe LD | Likely LD | Lean LD | Likely LD | Likely LD | Lean LD | Likely LD | Toss-up LD | Lean LD | Likely LD | Likely LD | Lean LD |
| Mid Leicestershire | Cons | Cons | Cons | Safe Cons | Lean Cons | Toss-up Cons | Toss-up Cons | Toss-up Ref | Toss-up Ref | Lean Ref | Toss-up Ref | Toss-up Ref | Toss-up Cons | Likely Ref | Lean Ref |
| Mid Norfolk | Cons | Cons | Cons | Safe Cons | Lean Cons | Toss-up Cons | Toss-up Cons | Toss-up Ref | Toss-up Ref | Lean Ref | Lean Ref | Lean Ref | Lean Ref | Lean Ref | Lean Ref |
| Mid Sussex | Cons | LD | LD | Safe LD | Lean LD | Toss-up LD | Toss-up LD | Toss-up LD | Likely LD | Lean LD | Lean LD | Lean LD | Likely LD | Lean LD | Toss-up Ref |
| Mid Ulster | SF | SF | SF | ||||||||||||
| Middlesbrough and Thornaby East | Lab | Lab | Lab | Lean Lab | Lean Lab | Lean Ref | Toss-up Lab | Toss-up Ref | Toss-up Lab | Likely Ref | Likely Ref | Lean Ref | Toss-up Ref | Lean Ref | Likely Ref |
| Middlesbrough South and East Cleveland | Cons | Lab | Lab | Safe Cons | Toss-up Cons | Lean Cons | Toss-up Cons | Lean Cons | Toss-up Cons | Toss-up Cons | Lean Ref | Toss-up Ref | Toss-up Ref | Lean Ref | Toss-up Cons |
| Midlothian | SNP | Lab | Lab | Lean Lab | Lean Lab | Toss-up Lab | Toss-up Lab | Toss-up Lab | Toss-up SNP | Toss-up Lab | Lean SNP | Toss-up Lab | Toss-up Lab | Toss-up SNP | Toss-up SNP |
| Milton Keynes Central | Cons | Lab | Lab | Safe Lab | Lean Lab | Toss-up Lab | Toss-up Lab | Toss-up Lab | Lean Lab | Toss-up Ref | Lean Ref | Toss-up Ref | Toss-up Lab | Toss-up Lab | Toss-up Ref |
| Milton Keynes North | Cons | Lab | Lab | Safe Lab | Toss-up Lab | Toss-up Lab | Toss-up Cons | Toss-up Lab | Toss-up Lab | Toss-up Ref | Toss-up Cons | Toss-up Ref | Toss-up Lab | Toss-up Ref | Toss-up Ref |
| Mitcham and Morden | Lab | Lab | Lab | Safe Lab | Safe Lab | Likely Lab | Likely Lab | Likely Lab | Likely Lab | Toss-up Lab | Likely Lab | Likely Lab | Likely Lab | Lean Lab | Likely Lab |
| Monmouthshire | Cons | Lab | Lab | Safe Lab | Toss-up Cons | Toss-up Cons | Toss-up Cons | Lean Cons | Toss-up Ref | Toss-up Lab | Toss-up Lab | Toss-up Cons | Toss-up Ref | Toss-up Ref | Lean Cons |
| Montgomeryshire and Glyndŵr | Cons | Lab | Lab | Safe Lab | Toss-up Ref | Lean Ref | Toss-up Ref | Lean Ref | Likely Ref | Lean Ref | Lean Ref | Lean Ref | Likely Ref | Likely Ref | Toss-up Ref |
| Moray West, Nairn and Strathspey | SNP | SNP | SNP | Safe SNP | Toss-up Cons | Toss-up SNP | Toss-up SNP | Toss-up SNP | Toss-up SNP | Toss-up SNP | Lean SNP | Likely Ref | Toss-up SNP | Lean SNP | Toss-up Ref |
| Morecambe and Lunesdale | Cons | Lab | Lab | Safe Cons | Toss-up Lab | Toss-up Ref | Toss-up Ref | Toss-up Ref | Toss-up Ref | Toss-up Ref | Toss-up Ref | Likely Ref | Toss-up Ref | Likely Ref | Lean Ref |
| Motherwell, Wishaw and Carluke | SNP | Lab | Lab | Safe SNP | Toss-up Lab | Toss-up Lab | Toss-up SNP | Toss-up Lab | Toss-up SNP | Toss-up Lab | Likely SNP | Toss-up SNP | Toss-up SNP | Toss-up SNP | Toss-up SNP |
| Na h-Eileanan an Iar | SNP | Lab | Lab | Lean Lab | Lean Lab | Lean Lab | Toss-up Lab | Lean Lab | Lean Lab | Lean Lab | Toss-up SNP | Lean SNP | Toss-up Lab | Toss-up Lab | Toss-up SNP |
| Neath and Swansea East | Lab | Lab | Lab | Safe Lab | Toss-up Ref | Toss-up Ref | Lean Ref | Toss-up Ref | Lean Ref | Likely Ref | Toss-up Ref | Likely Ref | Lean Ref | Likely Ref | Lean Ref |
| New Forest East | Cons | Cons | Cons | Safe Cons | Lean Cons | Lean Cons | Toss-up Cons | Toss-up Cons | Toss-up Ref | Toss-up Ref | Toss-up Cons | Toss-up Ref | Toss-up Ref | Toss-up Ref | Toss-up Ref |
| New Forest West | Cons | Cons | Cons | Safe Cons | Lean Cons | Lean Cons | Lean Cons | Toss-up Cons | Toss-up Ref | Toss-up Ref | Toss-up Cons | Toss-up Ref | Lean Ref | Toss-up Cons | Toss-up Ref |
| Newark | Cons | Cons | Cons | Safe Cons | Likely Cons | Toss-up Cons | Lean Cons | Toss-up Cons | Toss-up Cons | Lean Ref | Toss-up Cons | Toss-up Ref | Toss-up Ref | Toss-up Ref | Toss-up Ref |
| Newbury | Cons | LD | LD | Safe Cons | Toss-up LD | Toss-up Cons | Toss-up LD | Toss-up Cons | Lean LD | Toss-up LD | Toss-up LD | Toss-up LD | Lean LD | Toss-up LD | Toss-up Cons |
| Newcastle upon Tyne Central and West | Lab | Lab | Lab | Safe Lab | Lean Lab | Toss-up Lab | Toss-up Lab | Toss-up Lab | Toss-up Lab | Likely Ref | Lean Ref | Toss-up Ref | Toss-up Ref | Toss-up Ref | Lean Ref |
| Newcastle upon Tyne East and Wallsend | Lab | Lab | Lab | Safe Lab | Likely Lab | Toss-up Lab | Toss-up Lab | Toss-up Lab | Toss-up Lab | Lean Ref | Lean Ref | Toss-up Ref | Toss-up Lab | Toss-up Lab | Lean Ref |
| Newcastle upon Tyne North | Lab | Lab | Lab | Safe Lab | Likely Lab | Lean Lab | Lean Lab | Lean Lab | Likely Lab | Toss-up Lab | Likely Lab | Toss-up Lab | Toss-up Lab | Likely Lab | Toss-up Lab |
| Newcastle-under-Lyme | Cons | Lab | Lab | Likely Cons | Toss-up Lab | Toss-up Ref | Lean Ref | Toss-up Ref | Lean Ref | Lean Ref | Likely Ref | Likely Ref | Lean Ref | Likely Ref | Likely Ref |
| Newport East | Lab | Lab | Lab | Safe Lab | Toss-up Lab | Lean Ref | Toss-up Ref | Toss-up Ref | Toss-up Ref | Lean Ref | Toss-up Ref | Toss-up Ref | Lean Ref | Lean Ref | Toss-up Ref |
| Newport West and Islwyn | Lab | Lab | Lab | Safe Lab | Toss-up Lab | Toss-up Ref | Toss-up Ref | Toss-up Ref | Toss-up Ref | Toss-up Ref | Lean Ref | Lean Ref | Lean Ref | Lean Ref | Toss-up Lab |
| Newry and Armagh | SF | SF | SF | ||||||||||||
| Newton Abbot | Cons | LD | LD | Lean Cons | Toss-up Ref | Toss-up LD | Toss-up LD | Toss-up Cons | Toss-up Ref | Lean Ref | Toss-up LD | Toss-up Ref | Toss-up Ref | Lean Ref | Lean Ref |
| Newton Aycliffe and Spennymoor | Cons | Lab | Lab | Lean Ref | Toss-up Ref | Toss-up Ref | Lean Ref | Lean Ref | Toss-up Ref | Likely Ref | Likely Ref | Likely Ref | Lean Ref | Likely Ref | Safe Ref |
| Normanton and Hemsworth | Lab | Lab | Lab | Safe Ref | Lean Ref | Likely Ref | Likely Ref | Likely Ref | Lean Ref | Likely Ref | Safe Ref | Likely Ref | Lean Ref | Likely Ref | Safe Ref |
| North Antrim | DUP | TUV | TUV | ||||||||||||
| North Ayrshire and Arran | SNP | Lab | Lab | Safe SNP | Lean SNP | Lean SNP | Toss-up SNP | Toss-up SNP | Likely SNP | Toss-up SNP | Likely SNP | Lean SNP | Toss-up SNP | Lean SNP | Toss-up SNP |
| North Bedfordshire | Cons | Cons | Cons | Safe Cons | Likely Cons | Lean Cons | Likely Cons | Toss-up Cons | Toss-up Cons | Toss-up Cons | Toss-up Cons | Toss-up Ref | Toss-up Cons | Toss-up Cons | Toss-up Ref |
| North Cornwall | Cons | LD | LD | Safe LD | Lean LD | Lean LD | Toss-up LD | Toss-up LD | Likely LD | Lean LD | Lean LD | Lean LD | Likely LD | Toss-up LD | Toss-up Ref |
| North Cotswolds | Cons | Cons | Cons | Safe Cons | Toss-up Cons | Lean Cons | Lean Cons | Toss-up Cons | Toss-up LD | Toss-up Cons | Toss-up Cons | Toss-up Cons | Toss-up LD | Toss-up Ref | Toss-up Cons |
| North Devon | Cons | LD | LD | Safe LD | Toss-up LD | Lean LD | Toss-up LD | Toss-up LD | Lean LD | Toss-up LD | Toss-up LD | Toss-up LD | Lean LD | Toss-up Ref | Toss-up Ref |
| North Dorset | Cons | Cons | Cons | Safe Cons | Lean Cons | Lean Cons | Toss-up Cons | Toss-up Cons | Toss-up LD | Toss-up Ref | Toss-up Cons | Toss-up Ref | Lean LD | Lean Ref | Toss-up Ref |
| North Down | Alliance | Ind | Ind | ||||||||||||
| North Durham | Lab | Lab | Lab | Likely Ref | Toss-up Ref | Lean Ref | Lean Ref | Lean Ref | Lean Ref | Likely Ref | Likely Ref | Likely Ref | Lean Ref | Lean Ref | Likely Ref |
| North East Cambridgeshire | Cons | Cons | Cons | Safe Cons | Lean Cons | Toss-up Cons | Lean Ref | Toss-up Ref | Toss-up Ref | Likely Ref | Likely Ref | Lean Ref | Lean Ref | Likely Ref | Lean Ref |
| North East Derbyshire | Cons | Lab | Lab | Safe Cons | Toss-up Cons | Toss-up Ref | Toss-up Ref | Toss-up Ref | Lean Ref | Lean Ref | Lean Ref | Lean Ref | Lean Ref | Likely Ref | Lean Ref |
| North East Fife | SNP | LD | LD | Safe LD | Lean LD | Safe LD | Safe LD | Safe LD | Safe LD | Safe LD | Toss-up LD | Likely LD | Safe LD | Safe LD | Safe LD |
| North East Hampshire | Cons | LD | LD | Safe Cons | Toss-up Cons | Lean Cons | Toss-up Cons | Toss-up Cons | Toss-up LD | Toss-up LD | Lean LD | Toss-up LD | Lean LD | Toss-up Ref | Toss-up Cons |
| North East Hertfordshire | Cons | Lab | Lab | Safe Cons | Toss-up Cons | Lean Cons | Lean Cons | Toss-up Cons | Toss-up Ref | Toss-up Ref | Toss-up Cons | Toss-up Ref | Lean Ref | Lean Ref | Toss-up Ref |
| North East Somerset and Hanham | Cons | Lab | Ind | Safe Cons | Toss-up Cons | Toss-up Cons | Toss-up Cons | Toss-up Lab | Toss-up Ref | Toss-up Ref | Toss-up Cons | Lean Ref | Toss-up Ref | Lean Ref | Lean Ref |
| North Herefordshire | Cons | Green | Green | Safe Cons | Likely Green | Toss-up Green | Toss-up Green | Toss-up Green | Lean Green | Toss-up Ref | Lean Green | Likely Green | Lean Green | Lean Ref | Lean Green |
| North Norfolk | Cons | LD | LD | Safe LD | Toss-up LD | Toss-up LD | Toss-up LD | Toss-up Cons | Lean LD | Toss-up LD | Toss-up LD | Lean LD | Lean LD | Toss-up Ref | Toss-up Cons |
| North Northumberland | Cons | Lab | Lab | Likely Cons | Toss-up Ref | Toss-up Ref | Lean Cons | Toss-up Ref | Toss-up Ref | Lean Ref | Toss-up Lab | Toss-up Ref | Lean Ref | Likely Ref | Toss-up Ref |
| North Shropshire | Cons | LD | LD | Safe LD | Likely LD | Lean LD | Likely LD | Lean LD | Safe LD | Lean LD | Lean LD | Lean LD | Likely LD | Toss-up LD | Toss-up Ref |
| North Somerset | Cons | Lab | Lab | Safe Cons | Lean Cons | Lean Cons | Toss-up Cons | Toss-up Cons | Toss-up Cons | Toss-up Cons | Toss-up Cons | Toss-up Ref | Toss-up Ref | Toss-up Ref | Toss-up Ref |
| North Warwickshire and Bedworth | Cons | Lab | Lab | Safe Cons | Toss-up Ref | Toss-up Ref | Toss-up Ref | Lean Ref | Likely Ref | Likely Ref | Likely Ref | Likely Ref | Likely Ref | Safe Ref | Likely Ref |
| North West Cambridgeshire | Cons | Lab | Lab | Safe Cons | Toss-up Cons | Toss-up Cons | Toss-up Ref | Toss-up Ref | Toss-up Ref | Lean Ref | Lean Ref | Lean Ref | Lean Ref | Likely Ref | Lean Ref |
| North West Essex | Cons | Cons | Cons | Safe Cons | Likely Cons | Lean Cons | Likely Cons | Toss-up Cons | Toss-up Cons | Toss-up Ref | Lean Cons | Toss-up Cons | Toss-up Cons | Toss-up Ref | Toss-up Ref |
| North West Hampshire | Cons | Cons | Cons | Safe Cons | Lean Cons | Lean Cons | Lean Cons | Toss-up Cons | Toss-up Cons | Toss-up Ref | Toss-up Cons | Toss-up Ref | Toss-up Cons | Toss-up Ref | Toss-up Ref |
| North West Leicestershire | Cons | Lab | Lab | Safe Cons | Toss-up Cons | Toss-up Ref | Toss-up Ref | Toss-up Ref | Lean Ref | Likely Ref | Lean Ref | Likely Ref | Lean Ref | Likely Ref | Likely Ref |
| North West Norfolk | Cons | Cons | Cons | Safe Cons | Toss-up Cons | Toss-up Cons | Toss-up Ref | Toss-up Ref | Toss-up Ref | Likely Ref | Lean Ref | Lean Ref | Lean Ref | Lean Ref | Lean Ref |
| Northampton North | Cons | Lab | Lab | Safe Lab | Lean Lab | Toss-up Ref | Toss-up Lab | Toss-up Ref | Toss-up Lab | Lean Ref | Likely Ref | Lean Ref | Toss-up Ref | Lean Ref | Lean Ref |
| Northampton South | Cons | Lab | Lab | Safe Cons | Toss-up Lab | Toss-up Ref | Toss-up Cons | Toss-up Ref | Toss-up Ref | Lean Ref | Likely Ref | Lean Ref | Toss-up Ref | Likely Ref | Lean Ref |
| Norwich North | Cons | Lab | Lab | Safe Lab | Lean Lab | Toss-up Lab | Toss-up Ref | Toss-up Lab | Toss-up Ref | Toss-up Ref | Toss-up Ref | Toss-up Ref | Toss-up Ref | Toss-up Ref | Lean Ref |
| Norwich South | Lab | Lab | Lab | Safe Lab | Lean Lab | Lean Lab | Lean Lab | Likely Lab | Lean Lab | Toss-up Lab | Toss-up Lab | Toss-up Lab | Toss-up Lab | Likely Lab | Toss-up Lab |
| Nottingham East | Lab | Lab | Lab | Safe Lab | Safe Lab | Likely Lab | Likely Lab | Likely Lab | Likely Lab | Toss-up Ref | Lean Lab | Lean Lab | Likely Lab | Toss-up Lab | Toss-up Lab |
| Nottingham North and Kimberley | Lab | Lab | Lab | Safe Lab | Lean Lab | Lean Ref | Toss-up Lab | Toss-up Ref | Toss-up Ref | Likely Ref | Toss-up Ref | Lean Ref | Toss-up Ref | Lean Ref | Likely Ref |
| Nottingham South | Lab | Lab | Lab | Safe Lab | Likely Lab | Toss-up Lab | Toss-up Lab | Toss-up Lab | Lean Lab | Toss-up Ref | Toss-up Ref | Lean Ref | Toss-up Lab | Toss-up Lab | Lean Ref |
| Nuneaton | Cons | Lab | Lab | Safe Cons | Toss-up Ref | Toss-up Cons | Toss-up Ref | Toss-up Ref | Lean Ref | Likely Ref | Lean Ref | Likely Ref | Lean Ref | Likely Ref | Lean Ref |
| Old Bexley and Sidcup | Cons | Cons | Cons | Safe Cons | Lean Cons | Lean Cons | Toss-up Cons | Toss-up Cons | Toss-up Ref | Lean Ref | Lean Ref | Toss-up Ref | Toss-up Ref | Lean Ref | Toss-up Ref |
| Oldham East and Saddleworth | Lab | Lab | Lab | Safe Ref | Toss-up Lab | Lean Ref | Toss-up Ref | Toss-up Ref | Toss-up Ref | Likely Ref | Likely Ref | Likely Ref | Lean Ref | Lean Ref | Likely Ref |
| Oldham West, Chadderton and Royton | Lab | Lab | Lab | Lean Ref | Toss-up Lab | Toss-up Ref | Toss-up Ref | Toss-up Ref | Toss-up Lab | Lean Ref | Lean Ref | Toss-up Ref | Lean Ref | Lean Ref | Likely Ref |
| Orkney and Shetland | LD | LD | LD | Safe LD | Safe LD | Safe LD | Safe LD | Safe LD | Safe LD | Safe LD | Likely LD | Lean LD | Safe LD | Safe LD | Safe LD |
| Orpington | Cons | Cons | Cons | Safe Cons | Lean Cons | Lean Cons | Toss-up Cons | Lean Cons | Toss-up Cons | Toss-up Ref | Lean Ref | Toss-up Ref | Toss-up Cons | Toss-up Ref | Toss-up Ref |
| Ossett and Denby Dale | Cons | Lab | Lab | Likely Cons | Toss-up Ref | Toss-up Ref | Toss-up Ref | Lean Ref | Lean Ref | Lean Ref | Lean Ref | Likely Ref | Lean Ref | Likely Ref | Likely Ref |
| Oxford East | Lab | Lab | Lab | Safe Lab | Safe Lab | Likely Lab | Likely Lab | Likely Lab | Likely Lab | Lean Lab | Likely Lab | Lean Lab | Lean Lab | Lean Lab | Toss-up Lab |
| Oxford West and Abingdon | LD | LD | LD | Safe LD | Safe LD | Likely LD | Safe LD | Likely LD | Safe LD | Likely LD | Safe LD | Safe LD | Safe LD | Likely LD | Lean LD |
| Paisley and Renfrewshire North | SNP | Lab | Lab | Safe SNP | Toss-up Lab | Toss-up SNP | Toss-up SNP | Toss-up SNP | Lean SNP | Toss-up Lab | Likely SNP | Toss-up Ref | Lean SNP | Toss-up SNP | Toss-up SNP |
| Paisley and Renfrewshire South | SNP | Lab | Lab | Lean SNP | Lean Lab | Toss-up SNP | Toss-up SNP | Toss-up Lab | Toss-up SNP | Toss-up Lab | Lean SNP | Lean SNP | Toss-up SNP | Toss-up SNP | Likely SNP |
| Peckham | Lab | Lab | Lab | Safe Lab | Safe Lab | Lean Lab | Safe Lab | Likely Lab | Likely Lab | Toss-up Lab | Safe Lab | Safe Lab | Likely Lab | Lean Lab | Likely Lab |
| Pendle and Clitheroe | Cons | Lab | Lab | Safe Cons | Toss-up Cons | Toss-up Ref | Toss-up Ref | Toss-up Ref | Lean Ref | Lean Ref | Lean Ref | Likely Ref | Likely Ref | Likely Ref | Toss-up Ref |
| Penistone and Stocksbridge | Cons | Lab | Lab | Safe Ref | Toss-up Ref | Toss-up Ref | Likely Ref | Lean Ref | Toss-up Ref | Lean Ref | Likely Ref | Likely Ref | Lean Ref | Likely Ref | Safe Ref |
| Penrith and Solway | Cons | Lab | Ind | Safe Cons | Toss-up Lab | Toss-up Ref | Toss-up Cons | Lean Ref | Toss-up Ref | Lean Ref | Toss-up Ref | Lean Ref | Lean Ref | Likely Ref | Lean Ref |
| Perth and Kinross-shire | SNP | SNP | SNP | Safe SNP | Toss-up SNP | Lean SNP | Toss-up SNP | Lean SNP | Likely SNP | Lean SNP | Likely SNP | Lean SNP | Lean SNP | Likely SNP | Likely SNP |
| Peterborough | Cons | Lab | Lab | Safe Cons | Toss-up Cons | Toss-up Cons | Toss-up Cons | Toss-up Cons | Toss-up Ref | Likely Ref | Lean Ref | Lean Ref | Lean Ref | Likely Ref | Toss-up Ref |
| Plymouth Moor View | Cons | Lab | Lab | Safe Ref | Toss-up Lab | Toss-up Ref | Lean Ref | Toss-up Ref | Lean Ref | Likely Ref | Likely Ref | Safe Ref | Likely Ref | Safe Ref | Likely Ref |
| Plymouth Sutton and Devonport | Lab | Lab | Lab | Safe Lab | Likely Lab | Toss-up Lab | Toss-up Lab | Lean Lab | Toss-up Lab | Toss-up Ref | Lean Ref | Lean Ref | Toss-up Lab | Toss-up Lab | Lean Ref |
| Pontefract, Castleford and Knottingley | Lab | Lab | Lab | Safe Ref | Toss-up Ref | Likely Ref | Likely Ref | Lean Ref | Lean Ref | Likely Ref | Safe Ref | Likely Ref | Lean Ref | Likely Ref | Safe Ref |
| Pontypridd | Lab | Lab | Lab | Safe Lab | Toss-up Lab | Toss-up Ref | Toss-up Ref | Toss-up Ref | Toss-up PC | Lean Ref | Lean Ref | Lean Ref | Toss-up Ref | Lean Ref | Toss-up Ref |
| Poole | Cons | Lab | Lab | Safe Cons | Toss-up Cons | Toss-up Cons | Toss-up Cons | Toss-up Cons | Lean Ref | Toss-up Ref | Toss-up Ref | Lean Ref | Lean Ref | Likely Ref | Lean Ref |
| Poplar and Limehouse | Lab | Lab | Lab | Safe Lab | Safe Lab | Likely Lab | Safe Lab | Lean Lab | Lean Lab | Toss-up Lab | Safe Lab | Likely Lab | Lean Lab | Toss-up Lab | Lean Lab |
| Portsmouth North | Cons | Lab | Lab | Safe Cons | Toss-up Cons | Toss-up Cons | Toss-up Ref | Toss-up Ref | Lean Ref | Likely Ref | Lean Ref | Lean Ref | Lean Ref | Likely Ref | Lean Ref |
| Portsmouth South | Lab | Lab | Lab | Safe Lab | Likely Lab | Toss-up Lab | Lean Lab | Lean Lab | Lean Lab | Toss-up Lab | Lean Ref | Toss-up Ref | Lean Lab | Lean Lab | Toss-up Ref |
| Preston | Lab | Lab | Lab | Safe Lab | Lean Lab | Toss-up Ref | Toss-up Ref | Toss-up Ref | Toss-up Lab | Lean Ref | Lean Ref | Toss-up Ref | Lean Ref | Lean Ref | Toss-up Ref |
| Putney | Lab | Lab | Lab | Safe Lab | Likely Lab | Lean Lab | Likely Lab | Likely Lab | Likely Lab | Likely Lab | Lean Lab | Likely Lab | Likely Lab | Likely Lab | Likely Lab |
| Queen's Park and Maida Vale | Lab | Lab | Lab | Safe Lab | Safe Lab | Likely Lab | Safe Lab | Likely Lab | Likely Lab | Toss-up Lab | Safe Lab | Likely Lab | Likely Lab | Lean Lab | Likely Lab |
| Rawmarsh and Conisbrough | Lab | Lab | Lab | Safe Ref | Toss-up Ref | Likely Ref | Likely Ref | Lean Ref | Lean Ref | Likely Ref | Safe Ref | Likely Ref | Likely Ref | Likely Ref | Safe Ref |
| Rayleigh and Wickford | Cons | Cons | Cons | Safe Cons | Toss-up Cons | Toss-up Cons | Toss-up Ref | Toss-up Ref | Lean Ref | Likely Ref | Lean Ref | Lean Ref | Lean Ref | Lean Ref | Likely Ref |
| Reading Central | Lab | Lab | Lab | Safe Lab | Likely Lab | Lean Lab | Likely Lab | Likely Lab | Likely Lab | Lean Lab | Likely Lab | Lean Lab | Lean Lab | Lean Lab | Lean Lab |
| Reading West and Mid Berkshire | Cons | Lab | Lab | Likely Cons | Toss-up Cons | Lean Cons | Lean Cons | Toss-up Cons | Toss-up Ref | Toss-up Cons | Toss-up Cons | Toss-up Ref | Toss-up Ref | Toss-up Ref | Toss-up Cons |
| Redcar | Cons | Lab | Lab | Lean Cons | Toss-up Lab | Toss-up Ref | Lean Ref | Lean Ref | Lean Ref | Likely Ref | Likely Ref | Likely Ref | Lean Ref | Safe Ref | Likely Ref |
| Redditch | Cons | Lab | Lab | Safe Cons | Toss-up Cons | Toss-up Cons | Toss-up Cons | Toss-up Ref | Lean Ref | Lean Ref | Lean Ref | Likely Ref | Lean Ref | Likely Ref | Lean Ref |
| Reigate | Cons | Cons | Cons | Safe Cons | Lean Cons | Lean Cons | Lean Cons | Lean Cons | Toss-up Cons | Toss-up Cons | Toss-up Cons | Toss-up Cons | Toss-up Cons | Toss-up Cons | Toss-up Cons |
| Rhondda and Ogmore | Lab | Lab | Lab | Likely Ref | Toss-up Ref | Toss-up Ref | Lean Ref | Toss-up Ref | Toss-up Ref | Lean Ref | Likely Ref | Likely Ref | Toss-up Ref | Likely Ref | Safe Ref |
| Ribble Valley | Cons | Lab | Lab | Safe Cons | Toss-up Cons | Toss-up Cons | Toss-up Cons | Toss-up Ref | Toss-up Ref | Lean Ref | Toss-up Ref | Lean Ref | Lean Ref | Likely Ref | Lean Ref |
| Richmond and Northallerton | Cons | Cons | Cons | Safe Cons | Likely Cons | Lean Cons | Safe Cons | Toss-up Cons | Lean Cons | Toss-up Ref | Lean Cons | Toss-up Cons | Toss-up Cons | Toss-up Ref | Likely Cons |
| Richmond Park | LD | LD | LD | Safe LD | Safe LD | Safe LD | Lean LD | Likely LD | Safe LD | Likely LD | Lean LD | Safe LD | Safe LD | Likely LD | Likely LD |
| Rochdale | Lab | Lab | Lab | Lean Lab | Lean Other | Toss-up Ref | Toss-up Ref | Toss-up Ref | Toss-up Ref | Toss-up Ref | Lean Ref | Toss-up Ref | Lean Ref | Likely Ref | Lean Ref |
| Rochester and Strood | Cons | Lab | Lab | Lean Ref | Toss-up Ref | Toss-up Ref | Toss-up Ref | Lean Ref | Lean Ref | Likely Ref | Likely Ref | Likely Ref | Lean Ref | Safe Ref | Likely Ref |
| Romford | Cons | Cons | Cons | Safe Cons | Toss-up Cons | Toss-up Cons | Toss-up Ref | Toss-up Cons | Lean Ref | Likely Ref | Likely Ref | Toss-up Ref | Toss-up Ref | Likely Ref | Lean Ref |
| Romsey and Southampton North | Cons | Cons | Cons | Safe Cons | Toss-up Cons | Toss-up Cons | Toss-up Cons | Lean Cons | Toss-up LD | Toss-up Cons | Toss-up Cons | Toss-up Cons | Toss-up LD | Toss-up Ref | Lean Cons |
| Rossendale and Darwen | Cons | Lab | Lab | Safe Cons | Toss-up Lab | Lean Ref | Toss-up Ref | Toss-up Ref | Toss-up Ref | Lean Ref | Likely Ref | Likely Ref | Lean Ref | Likely Ref | Likely Ref |
| Rother Valley | Cons | Lab | Lab | Safe Ref | Toss-up Cons | Lean Ref | Likely Ref | Lean Ref | Lean Ref | Likely Ref | Safe Ref | Likely Ref | Lean Ref | Safe Ref | Likely Ref |
| Rotherham | Lab | Lab | Lab | Safe Ref | Toss-up Ref | Likely Ref | Likely Ref | Lean Ref | Toss-up Ref | Likely Ref | Safe Ref | Likely Ref | Lean Ref | Lean Ref | Safe Ref |
| Rugby | Cons | Lab | Lab | Lean Cons | Toss-up Lab | Toss-up Cons | Toss-up Cons | Toss-up Cons | Toss-up Ref | Toss-up Ref | Toss-up Ref | Lean Ref | Lean Ref | Likely Ref | Lean Ref |
| Ruislip, Northwood and Pinner | Cons | Cons | Cons | Safe Cons | Likely Cons | Safe Cons | Likely Cons | Likely Cons | Likely Cons | Lean Cons | Lean Cons | Lean Cons | Likely Cons | Likely Cons | Likely Cons |
| Runcorn and Helsby | Lab | Lab | Ref | Safe Lab | Lean Lab | Toss-up Lab | Toss-up Ref | Toss-up Lab | Toss-up Lab | Toss-up Ref | Toss-up Ref | Toss-up Ref | Toss-up Lab | Toss-up Ref | Lean Ref |
| Runnymede and Weybridge | Cons | Cons | Cons | Safe Cons | Likely Cons | Likely Cons | Likely Cons | Lean Cons | Toss-up Cons | Toss-up Cons | Toss-up Ref | Toss-up Cons | Lean Cons | Toss-up Cons | Toss-up Cons |
| Rushcliffe | Cons | Lab | Lab | Safe Lab | Toss-up Lab | Lean Lab | Toss-up Cons | Toss-up Lab | Toss-up Lab | Toss-up Lab | Toss-up Lab | Toss-up Ref | Toss-up Lab | Toss-up Lab | Toss-up Ref |
| Rutherglen | SNP | Lab | Lab | Lean Lab | Toss-up Lab | Toss-up Lab | Toss-up SNP | Toss-up Lab | Toss-up SNP | Toss-up Lab | Lean SNP | Toss-up SNP | Lean SNP | Toss-up SNP | Likely SNP |
| Rutland and Stamford | Cons | Cons | Cons | Safe Cons | Likely Cons | Lean Cons | Likely Cons | Toss-up Cons | Lean Cons | Toss-up Ref | Lean Cons | Toss-up Cons | Lean Cons | Toss-up Cons | Toss-up Cons |
| Salford | Lab | Lab | Lab | Safe Lab | Safe Lab | Lean Lab | Toss-up Lab | Lean Lab | Lean Lab | Lean Ref | Toss-up Ref | Toss-up Ref | Lean Lab | Toss-up Lab | Lean Ref |
| Salisbury | Cons | Cons | Cons | Safe Cons | Lean Cons | Lean Cons | Lean Cons | Lean Cons | Toss-up LD | Toss-up Cons | Toss-up Cons | Toss-up Ref | Toss-up LD | Toss-up Ref | Toss-up Cons |
| Scarborough and Whitby | Cons | Lab | Lab | Safe Cons | Toss-up Ref | Lean Ref | Lean Ref | Lean Ref | Lean Ref | Likely Ref | Likely Ref | Likely Ref | Likely Ref | Safe Ref | Likely Ref |
| Scunthorpe | Cons | Lab | Lab | Lean Ref | Toss-up Ref | Lean Ref | Likely Ref | Lean Ref | Lean Ref | Likely Ref | Safe Ref | Likely Ref | Likely Ref | Safe Ref | Likely Ref |
| Sefton Central | Lab | Lab | Lab | Safe Lab | Safe Lab | Lean Lab | Lean Lab | Likely Lab | Lean Lab | Lean Lab | Likely Lab | Toss-up Lab | Lean Lab | Lean Lab | Toss-up Lab |
| Selby | Cons | Lab | Lab | Safe Lab | Toss-up Lab | Toss-up Ref | Toss-up Ref | Lean Ref | Toss-up Ref | Toss-up Ref | Lean Ref | Lean Ref | Toss-up Ref | Likely Ref | Likely Ref |
| Sevenoaks | Cons | Cons | Cons | Safe Cons | Lean Cons | Lean Cons | Lean Cons | Toss-up Cons | Toss-up Cons | Toss-up Ref | Toss-up Cons | Toss-up Cons | Toss-up Cons | Lean Ref | Toss-up Cons |
| Sheffield Brightside and Hillsborough | Lab | Lab | Lab | Safe Lab | Safe Lab | Lean Lab | Lean Lab | Lean Lab | Lean Lab | Lean Ref | Lean Ref | Toss-up Lab | Toss-up Lab | Toss-up Lab | Toss-up Ref |
| Sheffield Central | Lab | Lab | Lab | Safe Lab | Lean Lab | Likely Lab | Likely Lab | Toss-up Lab | Toss-up Lab | Toss-up Lab | Toss-up Lab | Lean Lab | Toss-up Lab | Toss-up Green | Toss-up Green |
| Sheffield Hallam | Lab | Lab | Lab | Safe Lab | Toss-up Lab | Safe Lab | Toss-up LD | Lean Lab | Lean LD | Toss-up Lab | Toss-up LD | Toss-up LD | Toss-up LD | Lean Lab | Lean Lab |
| Sheffield Heeley | Lab | Lab | Lab | Safe Lab | Safe Lab | Likely Lab | Likely Lab | Likely Lab | Likely Lab | Toss-up Lab | Toss-up Lab | Lean Lab | Likely Lab | Toss-up Lab | Toss-up Ref |
| Sheffield South East | Lab | Lab | Lab | Safe Lab | Likely Lab | Lean Lab | Toss-up Lab | Lean Lab | Lean Lab | Toss-up Lab | Lean Ref | Toss-up Ref | Toss-up Lab | Toss-up Lab | Likely Ref |
| Sherwood Forest | Cons | Lab | Lab | Safe Cons | Toss-up Ref | Lean Ref | Toss-up Ref | Lean Ref | Lean Ref | Likely Ref | Lean Ref | Likely Ref | Likely Ref | Safe Ref | Likely Ref |
| Shipley | Cons | Lab | Lab | Safe Lab | Toss-up Lab | Lean Lab | Toss-up Lab | Toss-up Lab | Toss-up Lab | Toss-up Ref | Toss-up Lab | Toss-up Ref | Toss-up Ref | Toss-up Ref | Toss-up Ref |
| Shrewsbury | Cons | Lab | Lab | Safe Lab | Lean Lab | Lean Lab | Toss-up Lab | Toss-up Lab | Toss-up Lab | Toss-up Lab | Toss-up Ref | Lean Ref | Toss-up Ref | Toss-up Lab | Lean Ref |
| Sittingbourne and Sheppey | Cons | Lab | Lab | Likely Cons | Likely Ref | Toss-up Ref | Lean Ref | Lean Ref | Likely Ref | Likely Ref | Likely Ref | Likely Ref | Likely Ref | Safe Ref | Likely Ref |
| Skipton and Ripon | Cons | Cons | Cons | Safe Cons | Likely Cons | Toss-up Cons | Lean Cons | Toss-up Ref | Toss-up Ref | Toss-up Ref | Toss-up Cons | Toss-up Ref | Toss-up Ref | Lean Ref | Toss-up Ref |
| Sleaford and North Hykeham | Cons | Cons | Cons | Safe Cons | Lean Cons | Toss-up Ref | Lean Cons | Lean Ref | Toss-up Ref | Likely Ref | Toss-up Ref | Lean Ref | Lean Ref | Likely Ref | Lean Ref |
| Slough | Lab | Lab | Lab | Safe Lab | Likely Other | Toss-up Other | Toss-up Ind | Toss-up Lab | Lean Lab | Toss-up Ref | Toss-up Ind | Toss-up Ind | Toss-up Ref | Toss-up YP | Toss-up Lab |
| Smethwick | Lab | Lab | Lab | Safe Lab | Likely Lab | Toss-up Ref | Lean Lab | Toss-up Lab | Toss-up Lab | Lean Ref | Toss-up Ref | Toss-up Ref | Toss-up Lab | Toss-up Ref | Toss-up Ref |
| Solihull West and Shirley | Cons | Cons | Cons | Safe Cons | Lean Cons | Lean Cons | Lean Cons | Lean Cons | Toss-up Cons | Toss-up Ref | Toss-up Ref | Toss-up Ref | Toss-up Cons | Toss-up Cons | Toss-up Cons |
| South Antrim | DUP | UUP | UUP | ||||||||||||
| South Basildon and East Thurrock | Cons | Ref | Ind | Safe Ref | Lean Ref | Lean Ref | Likely Ref | Likely Ref | Safe Ref | Safe Ref | Safe Ref | Safe Ref | Safe Ref | Safe Ref | Safe Ref |
| South Cambridgeshire | Cons | LD | LD | Safe LD | Likely LD | Lean LD | Likely LD | Lean LD | Likely LD | Likely LD | Likely LD | Likely LD | Safe LD | Likely LD | Toss-up LD |
| South Cotswolds | Cons | LD | LD | Safe LD | Toss-up LD | Toss-up LD | Toss-up LD | Toss-up LD | Likely LD | Toss-up LD | Toss-up LD | Lean LD | Likely LD | Toss-up LD | Toss-up Cons |
| South Derbyshire | Cons | Lab | Lab | Safe Cons | Toss-up Lab | Toss-up Ref | Toss-up Ref | Lean Ref | Toss-up Ref | Likely Ref | Lean Ref | Likely Ref | Lean Ref | Likely Ref | Likely Ref |
| South Devon | Cons | LD | LD | Safe LD | Lean LD | Toss-up LD | Toss-up LD | Toss-up LD | Likely LD | Lean LD | Toss-up LD | Lean LD | Likely LD | Toss-up LD | Toss-up Cons |
| South Dorset | Cons | Lab | Lab | Safe Cons | Toss-up Cons | Toss-up Cons | Toss-up Cons | Toss-up Ref | Lean Ref | Lean Ref | Toss-up Ref | Likely Ref | Lean Ref | Likely Ref | Lean Ref |
| South Down | SF | SF | SF | ||||||||||||
| South East Cornwall | Cons | Lab | Lab | Safe Cons | Toss-up Ref | Toss-up Cons | Lean Cons | Toss-up Ref | Lean Ref | Lean Ref | Toss-up Ref | Lean Ref | Lean Ref | Likely Ref | Lean Ref |
| South Holland and The Deepings | Cons | Cons | Cons | Safe Cons | Lean Cons | Toss-up Ref | Toss-up Ref | Lean Ref | Lean Ref | Likely Ref | Lean Ref | Likely Ref | Likely Ref | Likely Ref | Likely Ref |
| South Leicestershire | Cons | Cons | Cons | Safe Cons | Lean Cons | Toss-up Ref | Toss-up Cons | Toss-up Ref | Toss-up Ref | Lean Ref | Toss-up Ref | Lean Ref | Toss-up Cons | Lean Ref | Lean Ref |
| South Norfolk | Cons | Lab | Lab | Safe Cons | Toss-up Cons | Toss-up Cons | Lean Cons | Toss-up Cons | Toss-up Ref | Toss-up Ref | Toss-up Cons | Toss-up Ref | Toss-up Ref | Lean Ref | Toss-up Ref |
| South Northamptonshire | Cons | Cons | Cons | Safe Cons | Lean Cons | Toss-up Cons | Lean Cons | Toss-up Ref | Toss-up Ref | Lean Ref | Lean Cons | Toss-up Ref | Toss-up Cons | Lean Ref | Toss-up Ref |
| South Ribble | Cons | Lab | Lab | Safe Lab | Toss-up Lab | Toss-up Ref | Toss-up Ref | Toss-up Ref | Toss-up Ref | Lean Ref | Toss-up Ref | Likely Ref | Lean Ref | Likely Ref | Lean Ref |
| South Shields | Lab | Lab | Lab | Safe Ref | Toss-up Lab | Toss-up Ref | Toss-up Ref | Toss-up Ref | Lean Ref | Likely Ref | Likely Ref | Lean Ref | Lean Ref | Likely Ref | Safe Ref |
| South Shropshire | Cons | Cons | Cons | Safe Cons | Toss-up Cons | Lean Cons | Lean Cons | Toss-up Ref | Lean LD | Lean Ref | Toss-up Cons | Toss-up Ref | Toss-up LD | Lean Ref | Toss-up Cons |
| South Suffolk | Cons | Cons | Cons | Safe Cons | Lean Cons | Toss-up Cons | Toss-up Cons | Toss-up Ref | Toss-up Ref | Lean Ref | Toss-up Ref | Toss-up Ref | Lean Ref | Lean Ref | Lean Ref |
| South West Devon | Cons | Cons | Cons | Safe Cons | Toss-up Cons | Lean Cons | Lean Cons | Toss-up Cons | Toss-up Ref | Toss-up Ref | Toss-up Ref | Lean Ref | Toss-up Ref | Toss-up Ref | Lean Ref |
| South West Hertfordshire | Cons | Cons | Cons | Safe Cons | Lean Cons | Toss-up Cons | Likely Cons | Lean Cons | Toss-up LD | Lean Ref | Toss-up Cons | Toss-up Cons | Toss-up Cons | Lean Ref | Toss-up Cons |
| South West Norfolk | Cons | Lab | Lab | Lean Cons | Toss-up Ref | Toss-up Ref | Toss-up Ref | Lean Ref | Likely Ref | Likely Ref | Likely Ref | Likely Ref | Safe Ref | Safe Ref | Likely Ref |
| South West Wiltshire | Cons | Cons | Cons | Safe Cons | Toss-up Cons | Toss-up Cons | Toss-up Cons | Toss-up Cons | Toss-up Ref | Toss-up Ref | Toss-up Ref | Lean Ref | Toss-up Ref | Lean Ref | Toss-up Ref |
| Southampton Itchen | Cons | Lab | Lab | Safe Lab | Toss-up Lab | Toss-up Lab | Toss-up Ref | Toss-up Ref | Toss-up Ref | Lean Ref | Likely Ref | Lean Ref | Toss-up Ref | Lean Ref | Lean Ref |
| Southampton Test | Lab | Lab | Lab | Safe Lab | Lean Lab | Toss-up Lab | Lean Lab | Lean Lab | Toss-up Lab | Toss-up Ref | Toss-up Ref | Toss-up Ref | Toss-up Lab | Toss-up Lab | Toss-up Ref |
| Southend East and Rochford | Cons | Lab | Lab | Safe Cons | Toss-up Lab | Toss-up Cons | Toss-up Ref | Toss-up Ref | Toss-up Ref | Lean Ref | Lean Ref | Lean Ref | Lean Ref | Likely Ref | Lean Ref |
| Southend West and Leigh | Cons | Lab | Lab | Safe Cons | Toss-up Cons | Toss-up Cons | Toss-up Cons | Toss-up Cons | Toss-up Ref | Toss-up Ref | Toss-up Ref | Lean Ref | Lean Ref | Likely Ref | Lean Ref |
| Southgate and Wood Green | Lab | Lab | Lab | Safe Lab | Safe Lab | Likely Lab | Likely Lab | Likely Lab | Likely Lab | Toss-up Lab | Likely Lab | Likely Lab | Likely Lab | Lean Lab | Lean Lab |
| Southport | Cons | Lab | Lab | Lean Lab | Toss-up Lab | Toss-up Ref | Toss-up Ref | Toss-up Ref | Toss-up Ref | Lean Ref | Lean Ref | Likely Ref | Toss-up Ref | Lean Ref | Lean Ref |
| Spelthorne | Cons | Cons | Cons | Safe Cons | Toss-up Cons | Toss-up Cons | Toss-up Cons | Toss-up Cons | Toss-up Ref | Lean Ref | Lean Ref | Lean Ref | Toss-up Ref | Likely Ref | Lean Ref |
| Spen Valley | Cons | Lab | Lab | Safe Ref | Lean Ref | Lean Ref | Lean Ref | Lean Ref | Lean Ref | Likely Ref | Likely Ref | Likely Ref | Lean Ref | Likely Ref | Likely Ref |
| St Albans | LD | LD | LD | Safe LD | Safe LD | Safe LD | Likely LD | Likely LD | Safe LD | Safe LD | Likely LD | Safe LD | Safe LD | Likely LD | Likely LD |
| St Austell and Newquay | Cons | Lab | Lab | Safe Cons | Toss-up Ref | Toss-up Ref | Toss-up Ref | Toss-up Ref | Lean Ref | Lean Ref | Lean Ref | Likely Ref | Likely Ref | Likely Ref | Lean Ref |
| St Helens North | Lab | Lab | Lab | Safe Lab | Lean Lab | Toss-up Lab | Toss-up Ref | Toss-up Lab | Toss-up Lab | Likely Ref | Lean Ref | Lean Ref | Toss-up Ref | Toss-up Ref | Likely Ref |
| St Helens South and Whiston | Lab | Lab | Lab | Safe Lab | Likely Lab | Toss-up Lab | Toss-up Ref | Toss-up Lab | Toss-up Lab | Lean Ref | Toss-up Ref | Lean Ref | Toss-up Ref | Toss-up Ref | Lean Ref |
| St Ives | Cons | LD | LD | Safe LD | Likely LD | Lean LD | Lean LD | Lean LD | Safe LD | Lean LD | Likely LD | Likely LD | Safe LD | Lean LD | Toss-up LD |
| St Neots and Mid Cambridgeshire | Cons | LD | LD | Safe LD | Lean LD | Toss-up Cons | Toss-up LD | Toss-up LD | Likely LD | Lean LD | Lean LD | Lean LD | Lean LD | Toss-up LD | Toss-up Ref |
| Stafford | Cons | Lab | Lab | Safe Cons | Toss-up Lab | Toss-up Cons | Toss-up Cons | Toss-up Cons | Toss-up Ref | Toss-up Ref | Toss-up Ref | Lean Ref | Toss-up Ref | Likely Ref | Lean Ref |
| Staffordshire Moorlands | Cons | Cons | Cons | Safe Cons | Toss-up Cons | Toss-up Cons | Toss-up Cons | Toss-up Ref | Lean Ref | Likely Ref | Lean Ref | Likely Ref | Likely Ref | Likely Ref | Lean Ref |
| Stalybridge and Hyde | Lab | Lab | Lab | Lean Ref | Likely Lab | Lean Ref | Lean Ref | Toss-up Ref | Toss-up Ref | Likely Ref | Likely Ref | Likely Ref | Lean Ref | Lean Ref | Likely Ref |
| Stevenage | Cons | Lab | Lab | Safe Lab | Toss-up Lab | Toss-up Cons | Toss-up Cons | Toss-up Ref | Toss-up Ref | Toss-up Ref | Toss-up Ref | Lean Ref | Toss-up Ref | Likely Ref | Lean Ref |
| Stirling and Strathallan | SNP | Lab | Lab | Safe SNP | Toss-up SNP | Lean SNP | Toss-up SNP | Lean SNP | Lean SNP | Lean SNP | Toss-up SNP | Lean SNP | Toss-up SNP | Lean SNP | Likely SNP |
| Stockport | Lab | Lab | Lab | Safe Lab | Safe Lab | Lean Lab | Lean Lab | Lean Lab | Lean Lab | Toss-up Lab | Toss-up Lab | Toss-up Ref | Toss-up Lab | Lean Lab | Toss-up Ref |
| Stockton North | Lab | Lab | Lab | Likely Ref | Toss-up Lab | Lean Ref | Lean Ref | Lean Ref | Lean Ref | Likely Ref | Safe Ref | Lean Ref | Lean Ref | Likely Ref | Likely Ref |
| Stockton West | Cons | Cons | Cons | Safe Cons | Lean Cons | Lean Cons | Lean Cons | Lean Cons | Toss-up Cons | Toss-up Cons | Toss-up Cons | Toss-up Ref | Toss-up Cons | Toss-up Ref | Toss-up Ref |
| Stoke-on-Trent Central | Cons | Lab | Lab | Safe Ref | Toss-up Ref | Toss-up Ref | Lean Ref | Lean Ref | Lean Ref | Likely Ref | Safe Ref | Likely Ref | Lean Ref | Likely Ref | Safe Ref |
| Stoke-on-Trent North | Cons | Lab | Lab | Safe Ref | Lean Ref | Toss-up Ref | Likely Ref | Lean Ref | Likely Ref | Likely Ref | Safe Ref | Safe Ref | Likely Ref | Safe Ref | Safe Ref |
| Stoke-on-Trent South | Cons | Lab | Lab | Safe Cons | Toss-up Ref | Toss-up Cons | Toss-up Ref | Toss-up Ref | Lean Ref | Likely Ref | Likely Ref | Likely Ref | Likely Ref | Likely Ref | Lean Ref |
| Stone, Great Wyrley and Penkridge | Cons | Cons | Cons | Safe Cons | Likely Cons | Safe Cons | Likely Cons | Likely Cons | Likely Cons | Toss-up Cons | Lean Cons | Toss-up Cons | Lean Cons | Lean Cons | Toss-up Cons |
| Stourbridge | Cons | Lab | Lab | Safe Cons | Toss-up Lab | Toss-up Cons | Toss-up Ref | Toss-up Ref | Lean Ref | Likely Ref | Lean Ref | Likely Ref | Likely Ref | Likely Ref | Lean Ref |
| Strangford | DUP | DUP | DUP | ||||||||||||
| Stratford and Bow | Lab | Lab | Lab | Safe Lab | Likely Lab | Lean Lab | Safe Lab | Lean Lab | Likely Lab | Toss-up Lab | Likely Lab | Likely Lab | Toss-up Lab | Toss-up Green | Toss-up Lab |
| Stratford-on-Avon | Cons | LD | LD | Safe LD | Lean LD | Toss-up Cons | Toss-up LD | Toss-up LD | Likely LD | Toss-up LD | Toss-up LD | Lean LD | Lean LD | Toss-up Ref | Toss-up Ref |
| Streatham and Croydon North | Lab | Lab | Lab | Safe Lab | Safe Lab | Likely Lab | Safe Lab | Likely Lab | Likely Lab | Toss-up Lab | Likely Lab | Likely Lab | Lean Lab | Lean Lab | Lean Lab |
| Stretford and Urmston | Lab | Lab | Lab | Safe Lab | Safe Lab | Lean Lab | Lean Lab | Lean Lab | Lean Lab | Toss-up Ref | Likely Lab | Toss-up Lab | Toss-up Lab | Lean Lab | Toss-up Lab |
| Stroud | Cons | Lab | Lab | Safe Lab | Lean Lab | Lean Lab | Toss-up Cons | Lean Lab | Toss-up Lab | Lean Lab | Toss-up Lab | Toss-up Ref | Toss-up Lab | Toss-up Lab | Lean Ref |
| Suffolk Coastal | Cons | Lab | Lab | Safe Cons | Toss-up Cons | Toss-up Cons | Toss-up Cons | Toss-up Cons | Lean Ref | Toss-up Ref | Toss-up Ref | Lean Ref | Lean Ref | Lean Ref | Toss-up Ref |
| Sunderland Central | Lab | Lab | Lab | Safe Ref | Toss-up Ref | Lean Ref | Lean Ref | Lean Ref | Lean Ref | Likely Ref | Safe Ref | Likely Ref | Lean Ref | Lean Ref | Likely Ref |
| Surrey Heath | Cons | LD | LD | Safe Cons | Toss-up LD | Toss-up LD | Toss-up LD | Toss-up Cons | Likely LD | Toss-up LD | Toss-up LD | Lean LD | Likely LD | Toss-up LD | Toss-up Cons |
| Sussex Weald | Cons | Cons | Cons | Safe Cons | Toss-up Cons | Lean Cons | Likely Cons | Toss-up Cons | Toss-up Ref | Toss-up Ref | Toss-up Cons | Toss-up Cons | Toss-up Ref | Toss-up Ref | Toss-up Ref |
| Sutton and Cheam | Cons | LD | LD | Safe LD | Toss-up LD | Toss-up Cons | Lean LD | Toss-up Cons | Lean LD | Toss-up LD | Toss-up LD | Lean LD | Lean LD | Toss-up Ref | Toss-up LD |
| Sutton Coldfield | Cons | Cons | Cons | Safe Cons | Lean Cons | Likely Cons | Lean Cons | Lean Cons | Toss-up Cons | Toss-up Ref | Lean Ref | Toss-up Ref | Toss-up Cons | Toss-up Cons | Toss-up Ref |
| Swansea West | Lab | Lab | Lab | Toss-up Lab | Lean Lab | Toss-up Ref | Toss-up Ref | Toss-up Ref | Toss-up Ref | Lean Ref | Lean Ref | Likely Ref | Toss-up Ref | Lean Ref | Toss-up Ref |
| Swindon North | Cons | Lab | Lab | Lean Cons | Toss-up Lab | Toss-up Cons | Toss-up Ref | Toss-up Cons | Toss-up Ref | Toss-up Ref | Toss-up Ref | Lean Ref | Toss-up Ref | Likely Ref | Lean Ref |
| Swindon South | Cons | Lab | Lab | Safe Lab | Lean Lab | Toss-up Lab | Toss-up Lab | Toss-up Lab | Lean Lab | Toss-up Ref | Lean Ref | Toss-up Ref | Toss-up Lab | Toss-up Ref | Lean Ref |
| Tamworth | Cons | Lab | Lab | Safe Cons | Toss-up Ref | Toss-up Cons | Toss-up Ref | Toss-up Ref | Lean Ref | Likely Ref | Likely Ref | Likely Ref | Likely Ref | Safe Ref | Likely Ref |
| Tatton | Cons | Cons | Cons | Safe Cons | Lean Cons | Lean Cons | Lean Cons | Lean Cons | Toss-up Cons | Toss-up Cons | Toss-up Cons | Toss-up Ref | Toss-up Cons | Toss-up Ref | Toss-up Cons |
| Taunton and Wellington | Cons | LD | LD | Safe LD | Lean LD | Toss-up LD | Likely LD | Toss-up LD | Safe LD | Toss-up LD | Likely LD | Lean LD | Likely LD | Toss-up LD | Toss-up LD |
| Telford | Cons | Lab | Lab | Safe Lab | Toss-up Lab | Lean Ref | Lean Ref | Toss-up Ref | Toss-up Ref | Lean Ref | Likely Ref | Likely Ref | Lean Ref | Likely Ref | Likely Ref |
| Tewkesbury | Cons | LD | LD | Safe LD | Toss-up LD | Toss-up LD | Lean LD | Toss-up Cons | Likely LD | Toss-up LD | Lean LD | Toss-up LD | Likely LD | Toss-up LD | Toss-up Ref |
| The Wrekin | Cons | Cons | Cons | Safe Cons | Toss-up Cons | Toss-up Cons | Toss-up Cons | Toss-up Ref | Toss-up Ref | Lean Ref | Toss-up Ref | Lean Ref | Toss-up Ref | Lean Ref | Lean Ref |
| Thirsk and Malton | Cons | Cons | Cons | Safe Cons | Lean Cons | Toss-up Cons | Lean Cons | Toss-up Ref | Toss-up Ref | Lean Ref | Toss-up Ref | Toss-up Ref | Toss-up Ref | Lean Ref | Toss-up Cons |
| Thornbury and Yate | Cons | LD | LD | Lean Cons | Toss-up LD | Toss-up LD | Lean LD | Toss-up Cons | Lean LD | Toss-up LD | Toss-up LD | Toss-up LD | Lean LD | Toss-up Ref | Toss-up LD |
| Thurrock | Cons | Lab | Lab | Safe Ref | Toss-up Ref | Lean Ref | Lean Ref | Lean Ref | Toss-up Ref | Likely Ref | Safe Ref | Likely Ref | Lean Ref | Safe Ref | Safe Ref |
| Tipton and Wednesbury | Cons | Lab | Lab | Safe Ref | Toss-up Lab | Lean Ref | Likely Ref | Likely Ref | Lean Ref | Safe Ref | Safe Ref | Safe Ref | Likely Ref | Safe Ref | Likely Ref |
| Tiverton and Minehead | Cons | LD | LD | Safe LD | Toss-up Cons | Toss-up Cons | Toss-up Cons | Toss-up Ref | Toss-up LD | Toss-up LD | Toss-up LD | Toss-up Ref | Toss-up LD | Lean Ref | Toss-up Ref |
| Tonbridge | Cons | Cons | Cons | Safe Cons | Likely Cons | Likely Cons | Likely Cons | Lean Cons | Toss-up Cons | Toss-up Ref | Lean Cons | Toss-up Cons | Toss-up Cons | Toss-up Cons | Toss-up Cons |
| Tooting | Lab | Lab | Lab | Safe Lab | Safe Lab | Likely Lab | Likely Lab | Safe Lab | Likely Lab | Likely Lab | Safe Lab | Safe Lab | Likely Lab | Likely Lab | Safe Lab |
| Torbay | Cons | LD | LD | Safe LD | Toss-up LD | Toss-up LD | Lean LD | Toss-up Cons | Toss-up LD | Lean Ref | Toss-up Ref | Toss-up Ref | Toss-up LD | Lean Ref | Toss-up Ref |
| Torfaen | Lab | Lab | Lab | Safe Lab | Toss-up Lab | Lean Ref | Lean Ref | Toss-up Ref | Lean Ref | Lean Ref | Likely Ref | Lean Ref | Lean Ref | Likely Ref | Toss-up Ref |
| Torridge and Tavistock | Cons | Cons | Cons | Safe Cons | Toss-up Cons | Toss-up Cons | Lean Cons | Toss-up Ref | Toss-up Ref | Lean Ref | Toss-up Ref | Lean Ref | Toss-up Ref | Likely Ref | Toss-up Ref |
| Tottenham | Lab | Lab | Lab | Safe Lab | Safe Lab | Likely Lab | Safe Lab | Likely Lab | Likely Lab | Toss-up Lab | Likely Lab | Likely Lab | Lean Lab | Lean Lab | Lean Lab |
| Truro and Falmouth | Cons | Lab | Lab | Safe Cons | Lean Lab | Lean Lab | Toss-up Lab | Toss-up Lab | Toss-up Lab | Toss-up Lab | Toss-up Lab | Lean Ref | Toss-up Ref | Toss-up Lab | Toss-up Ref |
| Tunbridge Wells | Cons | LD | LD | Safe LD | Lean LD | Toss-up LD | Toss-up LD | Toss-up LD | Likely LD | Lean LD | Lean LD | Likely LD | Likely LD | Toss-up LD | Toss-up Ref |
| Twickenham | LD | LD | LD | Safe LD | Safe LD | Safe LD | Safe LD | Likely LD | Safe LD | Safe LD | Likely LD | Safe LD | Safe LD | Likely LD | Likely LD |
| Tynemouth | Lab | Lab | Lab | Safe Lab | Likely Lab | Toss-up Lab | Lean Lab | Lean Lab | Lean Lab | Toss-up Lab | Lean Lab | Toss-up Lab | Toss-up Lab | Toss-up Lab | Toss-up Ref |
| Upper Bann | DUP | DUP | DUP | ||||||||||||
| Uxbridge and South Ruislip | Cons | Lab | Lab | Safe Cons | Toss-up Cons | Lean Cons | Toss-up Cons | Lean Cons | Toss-up Cons | Toss-up Ref | Toss-up Ref | Toss-up Cons | Toss-up Cons | Lean Ref | Toss-up Cons |
| Vale of Glamorgan | Cons | Lab | Lab | Safe Lab | Toss-up Lab | Toss-up Cons | Toss-up Ref | Toss-up Cons | Toss-up Ref | Toss-up Ref | Likely Ref | Likely Ref | Toss-up Ref | Lean Ref | Lean Ref |
| Vauxhall and Camberwell Green | Lab | Lab | Lab | Safe Lab | Safe Lab | Likely Lab | Safe Lab | Likely Lab | Likely Lab | Toss-up Lab | Safe Lab | Safe Lab | Likely Lab | Likely Lab | Likely Lab |
| Wakefield and Rothwell | Cons | Lab | Lab | Safe Lab | Toss-up Ref | Toss-up Ref | Toss-up Ref | Lean Ref | Toss-up Ref | Likely Ref | Lean Ref | Lean Ref | Toss-up Ref | Lean Ref | Likely Ref |
| Wallasey | Lab | Lab | Lab | Safe Lab | Safe Lab | Lean Lab | Lean Lab | Lean Lab | Lean Lab | Toss-up Ref | Toss-up Lab | Toss-up Lab | Toss-up Lab | Toss-up Lab | Toss-up Lab |
| Walsall and Bloxwich | Cons | Lab | Lab | Lean Cons | Toss-up Lab | Lean Ref | Toss-up Lab | Lean Ref | Toss-up Ref | Likely Ref | Likely Ref | Likely Ref | Lean Ref | Likely Ref | Lean Ref |
| Walthamstow | Lab | Lab | Lab | Safe Lab | Safe Lab | Likely Lab | Safe Lab | Likely Lab | Safe Lab | Lean Lab | Likely Lab | Likely Lab | Likely Lab | Lean Lab | Lean Lab |
| Warrington North | Lab | Lab | Lab | Safe Lab | Lean Lab | Lean Ref | Lean Ref | Toss-up Ref | Toss-up Ref | Lean Ref | Lean Ref | Likely Ref | Toss-up Ref | Lean Ref | Likely Ref |
| Warrington South | Lab | Lab | Lab | Safe Lab | Likely Lab | Toss-up Lab | Toss-up Ref | Toss-up Lab | Toss-up Lab | Toss-up Ref | Toss-up Lab | Lean Ref | Toss-up Ref | Toss-up Ref | Lean Ref |
| Warwick and Leamington | Lab | Lab | Lab | Safe Lab | Likely Lab | Lean Lab | Lean Lab | Lean Lab | Lean Lab | Lean Lab | Lean Lab | Toss-up Lab | Toss-up Lab | Lean Lab | Toss-up Lab |
| Washington and Gateshead South | Lab | Lab | Lab | Safe Ref | Toss-up Ref | Lean Ref | Likely Ref | Lean Ref | Lean Ref | Likely Ref | Safe Ref | Likely Ref | Lean Ref | Likely Ref | Safe Ref |
| Watford | Cons | Lab | Lab | Safe Lab | Toss-up Lab | Toss-up Lab | Toss-up Cons | Toss-up Lab | Toss-up Lab | Toss-up Ref | Toss-up Cons | Toss-up Ref | Toss-up Ref | Toss-up Ref | Toss-up Ref |
| Waveney Valley | Cons | Green | Green | Safe Cons | Likely Green | Toss-up Green | Lean Green | Toss-up Green | Lean Green | Toss-up Ref | Likely Green | Likely Green | Lean Green | Lean Ref | Lean Green |
| Weald of Kent | Cons | Cons | Cons | Safe Cons | Lean Cons | Lean Cons | Likely Cons | Toss-up Ref | Toss-up Ref | Toss-up Ref | Lean Cons | Toss-up Cons | Toss-up Ref | Toss-up Ref | Toss-up Cons |
| Wellingborough and Rushden | Cons | Lab | Lab | Likely Ref | Toss-up Ref | Lean Ref | Lean Ref | Lean Ref | Lean Ref | Likely Ref | Likely Ref | Likely Ref | Lean Ref | Safe Ref | Likely Ref |
| Wells and Mendip Hills | Cons | LD | LD | Safe LD | Lean LD | Lean LD | Lean LD | Toss-up LD | Safe LD | Lean LD | Lean LD | Lean LD | Likely LD | Lean LD | Toss-up LD |
| Welwyn Hatfield | Cons | Lab | Lab | Safe Cons | Toss-up Cons | Toss-up Cons | Toss-up Cons | Toss-up Lab | Toss-up Lab | Toss-up Ref | Toss-up Cons | Toss-up Ref | Toss-up Lab | Lean Ref | Toss-up Ref |
| West Aberdeenshire and Kincardine | Cons | Cons | Cons | Toss-up Cons | Lean Cons | Toss-up Cons | Toss-up SNP | Toss-up Cons | Toss-up SNP | Toss-up Cons | Lean SNP | Toss-up Ref | Toss-up Cons | Toss-up Cons | Toss-up Ref |
| West Bromwich | Cons | Lab | Lab | Safe Lab | Likely Lab | Toss-up Ref | Toss-up Ref | Toss-up Ref | Toss-up Ref | Likely Ref | Likely Ref | Lean Ref | Toss-up Ref | Lean Ref | Likely Ref |
| West Dorset | Cons | LD | LD | Safe LD | Toss-up LD | Lean LD | Toss-up LD | Toss-up LD | Safe LD | Lean LD | Lean LD | Lean LD | Safe LD | Lean LD | Toss-up Cons |
| West Dunbartonshire | SNP | Lab | Lab | Toss-up SNP | Toss-up Lab | Toss-up SNP | Toss-up SNP | Toss-up SNP | Lean SNP | Toss-up Lab | Safe SNP | Likely SNP | Lean SNP | Lean SNP | Toss-up SNP |
| West Ham and Beckton | Lab | Lab | Lab | Safe Lab | Likely Lab | Lean Lab | Safe Lab | Lean Lab | Likely Lab | Toss-up Ref | Lean Lab | Likely Lab | Lean Lab | Toss-up Lab | Lean Lab |
| West Lancashire | Lab | Lab | Lab | Safe Lab | Likely Lab | Toss-up Ref | Toss-up Ref | Toss-up Lab | Toss-up Ref | Toss-up Ref | Toss-up Lab | Lean Ref | Toss-up Lab | Toss-up Ref | Lean Ref |
| West Suffolk | Cons | Cons | Cons | Safe Cons | Toss-up Cons | Toss-up Cons | Toss-up Cons | Toss-up Ref | Toss-up Ref | Likely Ref | Lean Ref | Lean Ref | Toss-up Ref | Lean Ref | Lean Ref |
| West Tyrone | SF | SF | SF | ||||||||||||
| West Worcestershire | Cons | Cons | Cons | Safe Cons | Lean Cons | Lean Cons | Likely Cons | Toss-up Cons | Toss-up Cons | Toss-up Ref | Toss-up Cons | Toss-up Ref | Toss-up Ref | Toss-up Ref | Toss-up Cons |
| Westmorland and Lonsdale | Cons | LD | LD | Safe LD | Safe LD | Lean LD | Safe LD | Likely LD | Safe LD | Likely LD | Likely LD | Safe LD | Safe LD | Likely LD | Likely LD |
| Weston-super-Mare | Cons | Lab | Lab | Likely Ref | Toss-up Lab | Toss-up Ref | Toss-up Ref | Toss-up Ref | Lean Ref | Lean Ref | Lean Ref | Likely Ref | Lean Ref | Likely Ref | Likely Ref |
| Wetherby and Easingwold | Cons | Cons | Cons | Safe Cons | Likely Cons | Lean Cons | Likely Cons | Toss-up Cons | Toss-up Cons | Toss-up Ref | Lean Cons | Toss-up Cons | Toss-up Cons | Toss-up Cons | Toss-up Cons |
| Whitehaven and Workington | Cons | Lab | Lab | Safe Lab | Lean Lab | Toss-up Lab | Toss-up Ref | Lean Ref | Toss-up Ref | Lean Ref | Lean Ref | Likely Ref | Toss-up Ref | Lean Ref | Likely Ref |
| Widnes and Halewood | Lab | Lab | Lab | Safe Lab | Likely Lab | Lean Lab | Toss-up Lab | Lean Lab | Lean Lab | Toss-up Ref | Toss-up Lab | Toss-up Lab | Lean Lab | Toss-up Lab | Toss-up Ref |
| Wigan | Lab | Lab | Lab | Lean Lab | Lean Lab | Lean Ref | Lean Ref | Toss-up Ref | Toss-up Ref | Lean Ref | Likely Ref | Likely Ref | Lean Ref | Lean Ref | Safe Ref |
| Wimbledon | Cons | LD | LD | Safe LD | Likely LD | Likely LD | Lean LD | Lean LD | Safe LD | Likely LD | Likely LD | Safe LD | Safe LD | Lean LD | Lean LD |
| Winchester | Cons | LD | LD | Safe LD | Likely LD | Lean LD | Lean LD | Lean LD | Safe LD | Likely LD | Likely LD | Likely LD | Safe LD | Likely LD | Toss-up LD |
| Windsor | Cons | Cons | Cons | Safe Cons | Likely Cons | Likely Cons | Lean Cons | Lean Cons | Toss-up Cons | Toss-up Cons | Lean Cons | Toss-up Cons | Lean Cons | Toss-up Cons | Lean Cons |
| Wirral West | Lab | Lab | Lab | Safe Lab | Lean Lab | Lean Lab | Toss-up Lab | Toss-up Lab | Toss-up Lab | Toss-up Lab | Likely Lab | Toss-up Ref | Toss-up Lab | Toss-up Lab | Toss-up Lab |
| Witham | Cons | Cons | Cons | Safe Cons | Toss-up Cons | Lean Cons | Toss-up Cons | Toss-up Ref | Toss-up Ref | Lean Ref | Toss-up Cons | Toss-up Ref | Toss-up Ref | Toss-up Ref | Toss-up Ref |
| Witney | Cons | LD | LD | Lean Cons | Toss-up LD | Toss-up LD | Toss-up Cons | Toss-up Cons | Lean LD | Toss-up LD | Lean LD | Lean LD | Likely LD | Toss-up LD | Toss-up Cons |
| Woking | Cons | LD | LD | Safe LD | Likely LD | Toss-up LD | Lean LD | Lean LD | Safe LD | Likely LD | Lean LD | Likely LD | Safe LD | Likely LD | Lean LD |
| Wokingham | Cons | LD | LD | Safe LD | Lean LD | Lean LD | Lean LD | Toss-up LD | Likely LD | Lean LD | Lean LD | Likely LD | Likely LD | Lean LD | Toss-up LD |
| Wolverhampton North East | Cons | Lab | Lab | Lean Ref | Toss-up Lab | Toss-up Ref | Lean Ref | Lean Ref | Lean Ref | Likely Ref | Likely Ref | Likely Ref | Lean Ref | Safe Ref | Likely Ref |
| Wolverhampton South East | Lab | Lab | Lab | Safe Lab | Lean Lab | Toss-up Ref | Toss-up Ref | Lean Ref | Toss-up Ref | Likely Ref | Safe Ref | Lean Ref | Toss-up Ref | Likely Ref | Likely Ref |
| Wolverhampton West | Cons | Lab | Lab | Safe Lab | Lean Lab | Toss-up Lab | Toss-up Lab | Toss-up Lab | Toss-up Lab | Toss-up Ref | Toss-up Ref | Toss-up Ref | Toss-up Lab | Toss-up Ref | Toss-up Ref |
| Worcester | Cons | Lab | Lab | Safe Lab | Toss-up Lab | Toss-up Lab | Toss-up Lab | Toss-up Lab | Toss-up Ref | Toss-up Ref | Toss-up Ref | Lean Ref | Toss-up Ref | Toss-up Ref | Lean Ref |
| Worsley and Eccles | Lab | Lab | Lab | Safe Lab | Lean Lab | Toss-up Ref | Lean Ref | Toss-up Ref | Toss-up Ref | Lean Ref | Lean Ref | Likely Ref | Toss-up Ref | Toss-up Ref | Likely Ref |
| Worthing West | Cons | Lab | Lab | Likely Cons | Toss-up Lab | Toss-up Cons | Toss-up Cons | Toss-up Cons | Toss-up Ref | Toss-up Ref | Toss-up Cons | Toss-up Ref | Toss-up Ref | Lean Ref | Lean Ref |
| Wrexham | Cons | Lab | Lab | Safe Lab | Toss-up Lab | Toss-up Ref | Toss-up Cons | Toss-up Ref | Toss-up Ref | Toss-up Ref | Lean Ref | Lean Ref | Lean Ref | Likely Ref | Toss-up Ref |
| Wycombe | Cons | Lab | Lab | Safe Lab | Toss-up Lab | Toss-up Lab | Toss-up Cons | Toss-up Cons | Toss-up Lab | Toss-up Ref | Toss-up Cons | Toss-up Ref | Toss-up Ref | Toss-up Ref | Toss-up Ref |
| Wyre Forest | Cons | Cons | Cons | Safe Cons | Toss-up Cons | Toss-up Cons | Toss-up Ref | Toss-up Ref | Lean Ref | Likely Ref | Lean Ref | Likely Ref | Likely Ref | Likely Ref | Lean Ref |
| Wythenshawe and Sale East | Lab | Lab | Lab | Safe Lab | Safe Lab | Toss-up Lab | Toss-up Lab | Toss-up Lab | Lean Lab | Toss-up Ref | Toss-up Lab | Toss-up Ref | Toss-up Lab | Toss-up Lab | Toss-up Ref |
| Yeovil | Cons | LD | LD | Safe LD | Lean LD | Lean LD | Likely LD | Toss-up LD | Likely LD | Lean LD | Lean LD | Toss-up LD | Likely LD | Toss-up LD | Toss-up LD |
| Ynys Môn | Cons | PC | PC | Lean PC | Toss-up PC | Toss-up Ref | Lean PC | Toss-up PC | Lean PC | Toss-up PC | Toss-up Ref | Toss-up PC | Safe PC | Toss-up PC | Toss-up PC |
| York Central | Lab | Lab | Lab | Safe Lab | Likely Lab | Likely Lab | Lean Lab | Likely Lab | Likely Lab | Toss-up Lab | Lean Lab | Toss-up Lab | Likely Lab | Likely Lab | Toss-up Ref |
| York Outer | Cons | Lab | Lab | Safe Lab | Toss-up Lab | Lean Lab | Toss-up Cons | Toss-up Lab | Toss-up Lab | Toss-up Lab | Toss-up Lab | Toss-up Ref | Toss-up Lab | Toss-up Lab | Toss-up Ref |