Parliamentary constituency boundaries are reviewed periodically by independent Boundary Commissions. This House of Commons Library briefing summarises the current rules and procedures for boundary changes and how they have changed over time. It also gives an overview how the number of MPs has reached the current number.
The Armed Forces can register to vote as ordinary electors, as overseas voters, or as service voters. There has been concern about the under-registration of the Armed Forces, especially those serving overseas, and the difficulties they face in participating in the electoral process more generally.The Note also gives a brief history of how the system of voting by members of the Armed Forces has changed, particularly during the periods directly after each World War.
This table lists the number of seats in the House of Commons from 1707 to present day.
Data Dashboard
Search the results of the 2019 General Election for each constituency using the interactive dashboard
Data Dashboard
Constituency-level data on electorates in the UK, including data for both the parliamentary and the local government franchise
Research Briefing
British citizens living overseas are currently entitled to be registered to vote in UK Parliamentary elections for up to 15 years in the constituency they were registered in before leaving the UK. The Government has committed to end the 15-year limit and introduce 'votes for life'. This Briefing Paper provides details of the provisions relating to overseas voters in the Representation of the People Act 1985 and the proposals for change. It also summarises earlier attempts to change the 15 year rule.
Research Briefing
This note contains basic details of the structure of local government (counties, districts and unitary authorities); the electoral system, ward structures, and the franchise; the divisions of functions between local authorities; and the process for changing local government boundaries and structures.
Insight
Parliament passed emergency legislation to delay the elections because of the ongoing coronavirus pandemic.
Research Briefing
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.
Research Briefing
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.
Research Briefing
This briefing paper provides data on the gender, age, ethnicity and educational backgrounds of Members of Parliament elected at the 2019 General Election and how this has changed over time.
Research Briefing
This paper presents an overview of election results since 1918. It provides summary results for all elections from 1918 to 2019, focusing on elections to the House of Commons.
Research Briefing
This briefing includes latest figures on the proportion of women in Parliament and elected bodies across the UK and throughout the world.
Insight
Does your demographic background affect how you vote?
Data Dashboard
Use the interactive dashboard to explore data for parliamentary constituencies, covering topics including unemployment, house prices and election results
Insight
Almost 23 million people have started or signed a petition on Parliament’s petitions website.
Total results (page 2 of 29)
