UK parliamentary by-elections since 1945
This list notes the number of by-elections by session since 1945-46 and also lists the successful candidate in by-elections since 2005.
MPs' parliamentary activities: An interactive dashboard
Filter by constituency to explore MPs' parliamentary activities, including the debates and urgent questions they raise, and how they vote in divisions.
Elections data
Access briefings and original datasets covering UK Parliament elections from 1918, including by-elections from 1945. Find data by constituency as well as original analysis of election results
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UK Election Statistics: 1918-2021: A century of elections
This Commons Library briefing paper presents an overview of UK election results since 1918. It provides summary results for all elections from 1918 to 2021, giving more extensive details about UK general elections. It also includes elections to the European Parliament, devolved legislatures and local government.
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Constituency data: election results
Search the results of the 2019 General Election for each constituency using the interactive dashboard
Government data
Read the latest data about the activity of members of the government in Parliament. Here, you can access a range of facts and figures in various formats about the government
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Parliamentary Private Secretaries to Prime Ministers since 1906
This List notes Parliamentary Private Secretaries (PPSs) to successive Prime Ministers since 1906.
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Ministers in the Conservative Governments: 2015, 2017 and 2019 Parliaments
This list notes ministerial office holders since the 2015 General Election.
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Attendance of the Prime Minister at Prime Minister’s Questions (PMQs) since 1979
This list notes the number of Prime Minister's Questions (PMQs) attended by the Prime Minister since 1979.
MP data
Find quick-read articles, datasets and longer briefings on the makeup of the UK Parliament and the characteristics of MPs
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MP data: Parliamentary activities
This interactive dashboard presents data on the parliamentary activities of MPs in Westminster. It aims to give an overview of the areas individual MPs are focusing on.
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Female Members of Parliament
This list identifies all the women who have ever been elected to the House of Commons in the order in which they were sworn in.
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Chairs of Commons select committees since 2010
House of Commons select committee chairs in the 2019, 2017, 2015 and 2010 parliaments.
Parliamentary data
Find facts and figures relating to legislation, MPs, ministers, select committees, debates, divisions and parliamentary procedure. Some lists date back hundreds of years to the present day but many cover the last seven to ten Parliaments
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Number of urgent questions in the House of Commons since 1997
Urgent questions are a category of oral questions that allow all MPs not in the Government to put a question to a minister without the usual notice required for oral question time and without the need to be drawn in a ballot.
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Commons Opposition Day debates since 1992
A list of opposition day debates since 1992 with information on debates and divisions on opposition day motions.
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MP data: Parliamentary activities
This interactive dashboard presents data on the parliamentary activities of MPs in Westminster. It aims to give an overview of the areas individual MPs are focusing on.