What is a General Election?
A general election is an opportunity for people in every part of the UK to choose their MP – the person who will represent their local area (constituency) in the House of Commons for up to five years.
When Parliament is dissolved every seat in the House of Commons becomes vacant and a general election is held. Each constituency in the UK elects one MP (Member of Parliament) to a seat in the House of Commons. The political party that wins a majority of seats in the House of Commons usually forms the Government
About our data
The House of Commons Library produces a record of every national election held within the UK and its constituent countries. These are published in a series of briefing papers, which are available for members of the public to download from parliament’s website.
This website provides data on the most recent general elections in a more accessible and interactive format, allowing you to explore and analyse the general election results for yourself, making comparisons between the results in different parts of the UK and at different general elections.
Complete historical results are available by constituency for general elections from 2010 onwards. Notional results from the 2005 General Election are also shown within the current constituency boundaries for individual constituencies and for counties, to allow for the longest possible time series of results. Notional 2005 results have been provided by Colin Rallings and Michael Thrasher from The Elections Centre at the University of Plymouth. For larger geographical areas (regions and countries) historical comparisons are made using the actual results at each general election, with data available back to 1992.
In some cases, making comparisons between the results at different general elections can be difficult because of changes in the composition of political parties. Specifically, at the 2010 General Election the Ulster Unionist Party and the Conservative Party in Northern Ireland formed an electoral alliance, fielding joint candidates as the Ulster Conservatives and Unionists. These three parties are represented separately in the results shown on this website.
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