New Parline: the IPU’s Open Data Platform (beta)
Your one-stop-shop for information about national parliaments

United Kingdom


House of Commons

This is a bicameral parliament. Switch to theHouse of Lords

Election results

Data on parliamentary elections, including the background, candidates, voter turnout, results and the formation of the new legislature. By default the latest election results are displayed. Select a date to view results from previous elections


Election date(s) The date when elections started and ended for directly or indirectly elected parliaments/chambers. The date of appointments for appointed parliaments/chambers.
Date of dissolution of the outgoing legislature Date at which the previous legislature (elected at the previous elections) was dissolved.
Timing of election Timing of election: Upon normal expiry; Early elections; Delayed elections
Early election
Expected date of next elections The expected date at which the next elections should take place, based on law or practice.
Number of seats at stake Number of seats contested at the elections. Where the parliament/chamber is fully renewed, this number is usually identical to the statutory number of members. Where the parliament/chamber is partially renewed or appointed, the number of seats at stake is usually less than the total number of members.
Scope of elections Scope of elections: Full renewal; Partial renewal.
Full renewal


Total number of candidates Total number of people who registered as candidates for election. Does not include people who stood as candidates to become "substitute members".
Number of male candidates Number of male candidates
Number of female candidates Number of female candidates
The number of women candidates is not available from authoritative sources.
Percentage of women candidates The percentage is calculated by dividing the number of women candidates by the total number of candidates.
Number of parties contesting the election This field may include either the number of parties contesting the election, or the number of coalitions/electoral alliance.
Number of other candidates Number of other candidates
At least 3 candidates were non-binary or gender neutral.

Voter turnout

Registration Number of people registered to vote


About the election Short description of the context and results of the election.
The first elections after the Brexit referendum (see note) resulted in a hung parliament. Prime Minister Theresa May of the Conservative Party had called early elections, calling on voters' support for "a strong and stable government to get the best Brexit deal". The Conservative Party won the elections but lost the parliamentary majority. The Labour Party, led by Mr. Jeremy Corbyn, increased its share of seats from 232 to 262, while promising to work for "a jobs-first Brexit that allows us to upgrade our economy for the 21st century". Ms. May subsequently formed a minority government, with the support of the Democratic Unionist Party led by Ms. Arlene Foster. A record number of 208 women (up from 191) were elected to the House of Commons in 2017 (32% of MPs). 
 During the election campaigning, the major parties focused more on social care and education than on Brexit. Two terror attacks occurred during the campaign - the Manchester Arena bombing on 22 May and the London Bridge attack on 4 June - pushing the security issue to the centre of the campaigning in run-up to the polling day.
 A referendum on Brexit (merging of the words "Britain" and "exit") to decide whether the United Kingdom should leave or remain in the European Union was held in June 2016. Leave camps narrowly won the referendum. The then Prime Minister David Cameron (Conservative Party) resigned after the referendum and was succeeded by Ms. May in July of that year.
Number of parties winning seats The number of parties which won parliamentary representation in the given election.
Percentage of parties winning seats The percentage is calculated by dividing the number of parties which won parliamentary representation by the number of parties contesting the election.
Percentage of seats won by largest party or coalition The percentage is calculated by dividing the number of seats won by the largest party by the number of seats at stake in the election.
Alternation of power after elections The results of the elections caused a change in the government. "Not applicable" to countries using the presidential system when parliamentary and presidential elections are held separately, to countries in political transition or where there is no party system.
Note on the alternation of power
The Conservative Party formed a minority government after the elections.
Names of parties in government The government may be formed by one or more political parties
Conservative Party
 The Democratic Unionist Party supports the minority government led by the Conservative Party.
Parties or coalitions winning seats
Political groups winning seats breakdown
Political group Total
Conservative Party (CP) 317
Scottish National Party 35
Liberal Democrats 12
Democratic Unionist Party 10
Sinn Fein 7
Plaid Cymru 4
Green Party 1
Independents 1
The Speaker 1
Labour Party 262
Members elected, by sex
Number of men elected
Number of women elected
Percentage of women elected The percentage is calculated by dividing the number of women elected in the election and the number of seats at stake at the election.
Other notes
Expected date of next elections: 5 May 2022. In accordance with Article 1 (3) of the Fixed-term Parliaments Act 2011 , the next general elections will be held on "the first Thursday in May in the fifth calendar year". 
 Name of the new Speaker: Mr. John Bercow (former member of the Conservative Party)
British IPU Group (09.06.2017) Houses of Parliament BRIEFING PAPER Number CBP 7979, 11 July 2017, General Election 2017: results and analysis Second Edition Fixed-term Parliaments Act 2011 Conservative Party Labour Party BBC
Women Directly Elected

New legislature

Total number of men after the election The total number of male parliamentarians in this parliament/chamber following the election or renewal, regardless of their modes of designation.
Total number of women after the election The total number of female parliamentarians in this parliament/chamber following the election or renewal, regardless of their modes of designation.
First-term parliamentarians The number of members who are assuming their parliamentary mandate for the first time following the election or renewal, regardless of their mode of designation.
Date of the first session The date when the newly elected parliament/chamber was convened for the first time. It may be different from the date when members were sworn in.
First Speaker of the new legislature
First Speaker of the new legislature First name of the Speaker of the new legislature following the election or renewal.
John Bercow (Male)
Date of election