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Yorkshire and the Humber · Former constituency (2010–2023) · E14000917

Selby and Ainsty

Every general election and by-election in Selby and Ainsty since 2010 (until 2023). Latest: Keir Mather, Labour, majority 4,161.

By-election, 20 July 2023

CandidatePartyVotesShareShare bar
Keir Mather ElectedLabour16,45646.0%
Claire HolmesConservative12,29534.3%
Arnold WarnekenGreen1,8385.1%
Mike JordanThe Yorkshire Party1,5034.2%
David KentReform UK1,3323.7%
Matt WalkerLiberal Democrats1,1883.3%
Nick PalmerIndependent3421.0%
John WaterstonSocial Democratic Party3140.9%
Sir Archibald StantonOfficial Monster Raving Loony Party1720.5%
Guy PhoenixHeritage Party1620.5%
Andrew GrayIndependent990.3%
Tyler Wilson-KerrIndependent670.2%
Luke WellockClimate Party390.1%
Valid votes35,807
Majority4,16111.6%

Lab gain from Con Turnout 44.7% of 80,150 electors. Full result →

0%25%50%75%100%2010201520172019Conservative, 2010: 49.4%Conservative, 2015: 52.5%Conservative, 2017: 58.7%Conservative, 2019: 60.3%Labour, 2010: 25.7%Labour, 2015: 26.8%Labour, 2017: 34.2%Labour, 2019: 24.6%Liberal Democrats, 2010: 17.8%Liberal Democrats, 2015: 3.6%Liberal Democrats, 2017: 4.1%Liberal Democrats, 2019: 8.6%UK Independence Party, 2010: 3.2%UK Independence Party, 2015: 14.0%UK Independence Party, 2017: 3.1%
Vote share in Selby and Ainsty at each general election Con Lab LD UKIP

Boundary changes in 2024

Where the voters of the old Selby and Ainsty (2010–2019 boundaries) live now:

Shares of population, from the House of Commons Library’s boundary analysis in the UK Parliament election results data.

Every result

Download CSV
ElectionWinnerRunner-upMajority%TurnoutResult
By-election Jul 2023Lab Keir MatherCon4,16111.644.7%Lab gain from Con
2019Con Nigel AdamsLab20,13735.772.0%Con hold
2017Con Nigel AdamsLab13,77224.673.9%Con hold
2015Con Nigel AdamsLab13,55725.769.4%Con hold
2010Con Nigel AdamsLab12,26523.771.1%Con hold

Constituency boundaries were redrawn several times (most recently in 1983, 1997, 2005 (Scotland), 2010 and 2024), so the area behind the name changed over time. Before 2010 results are by party; candidate names start in 2010.

Questions and answers

Who last won Selby and Ainsty?

Keir Mather (Labour) won Selby and Ainsty at the 2023 by-election with a majority of 4,161.

Which parties have won Selby and Ainsty?

At the 4 general elections held under this name since 2010: Conservative 4.

Official results House of Commons Library and UK Parliament election results data. Contains Parliamentary information licensed under the Open Parliament Licence v3.0. How we use this data

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