By-elections · Thursday 20 July 2023
Selby and Ainsty by-election 2023
Keir Mather (Labour) won the Selby and Ainsty by-election on 20 July 2023, gaining the seat from the Conservatives with a majority of 4,161. Full result, turnout and swing.
- Majority
- 4,16111.6%
- Turnout
- 44.7%72.0% at the previous election
- Electorate
- 80,150
- Swing
- 23.7 ptsCon to Lab
- Result
- Lab gain from Con
| Candidate | Party | Votes | Share | Change | Share bar |
|---|---|---|---|---|---|
| Keir Mather Elected | Labour | 16,456 | 46.0% | +21.4 | |
| Claire Holmes | Conservative | 12,295 | 34.3% | −25.9 | |
| Arnold Warneken | Green | 1,838 | 5.1% | +1.9 | |
| Mike Jordan | The Yorkshire Party | 1,503 | 4.2% | +0.8 | |
| David Kent | Reform UK | 1,332 | 3.7% | +3.7 | |
| Matt Walker | Liberal Democrats | 1,188 | 3.3% | −5.3 | |
| Nick Palmer | Independent | 342 | 1.0% | +1.4 | |
| John Waterston | Social Democratic Party | 314 | 0.9% | +0.9 | |
| Sir Archibald Stanton | Official Monster Raving Loony Party | 172 | 0.5% | +0.5 | |
| Guy Phoenix | Heritage Party | 162 | 0.5% | +0.5 | |
| Andrew Gray | Independent | 99 | 0.3% | ||
| Tyler Wilson-Kerr | Independent | 67 | 0.2% | ||
| Luke Wellock | Climate Party | 39 | 0.1% | +0.1 | |
| Valid votes | 35,807 | ||||
| Majority | 4,161 | 11.6% | |||
Change compared with the 2019 general election in Selby and Ainsty.
Writ issued 14 June 2023. 58th Parliament.
Every result in Selby and Ainsty →
Questions and answers
Who won the Selby and Ainsty by-election?
Keir Mather (Labour) won on 20 July 2023 with 16,456 votes (46.0%), a majority of 4,161.
What was the turnout at the Selby and Ainsty by-election?
44.7% of registered electors cast a valid vote.
Official results UK Parliament election results data (House of Commons Library). Contains Parliamentary information licensed under the Open Parliament Licence v3.0. How we use this data