UK parliamentary by-elections since 1945
This list notes the number of by-elections by session since 1945-46 together with a list of the the successful candidates in by-elections since 2005.
Census data: How do constituencies with different demographics vote?
Explore 2024 general election results and census data for constituencies using our data tool.
General election 2024 results
Full results and analysis of the 4th July 2024 general election, where Labour won a majority in Parliament
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Data dashboards
Constituency data: electorates
Constituency-level data on electorates in the UK, including data for both the parliamentary and the local government franchise
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Research Briefing
UK Election Statistics: 1918-2023: A century of elections
This briefing gives an overview of UK election results since 1918, including for the UK Parliament, European Parliament, devolved legislatures and local government.
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2021 Local Elections Handbook and dataset
Explore the 2021 local election results handbook and download a comprehensive results dataset for English electoral districts and wards.
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Data dashboards
Constituency data: election results
Search the results of the 2019 General Election for each constituency using the interactive dashboard
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Research Briefing
General election results from 1918 to 2019
This dataset presents UK general election results by constituency from 1918 onwards. It draws on several sources, described below, which may contain errors. For each constituency, the dataset includes the number of votes and vote share for different political parties, as well as the electorate and turnout. Turnout was calculated as valid votes divided by the electorate.
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Research Briefing
By-elections in the 2017 Parliament
This Commons Library Briefing Paper sets out results of the by-elections held in the 2017 Parliament. There were five by-elections in the two year Parliament, details can be found in the report. Full details are presented in the associated PDF but an overview of the recent by-election results are shown below.
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Research Briefing
General Election 2019: full results and analysis
This briefing shows data for the 2019 General Election, with maps, charts and tables showing votes, vote shares and turnout by party, region and constituency.
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Research Briefing
General Election 2017: full results and analysis
This briefing paper contains detailed results and analysis of the 2017 General Election, held on 8th June. It provides election results by party & constituency, as well as analysis of voter trends, MP characteristics, and more.
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Research Briefing
UK by-elections held more than 3 months after vacancy
A by-election takes place in the House of Commons when a seat becomes vacant, either through the Member of Parliament dying or resigning the seat. This list notes by-elections that have taken place more than three months after the vacancy.
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Research Briefing
General Election 2015: full results and analysis
This briefing shows data for the 2015 General Election, with maps, charts and tables showing votes, vote shares and turnout by party, region and constituency.