page_title: 2017 United Kingdom general election
section_title: Opinion polling and seat projections
hierarchical_section_title: 2017 United Kingdom general election / Opinion polling and seat projections
caption_attribution_description: English: Opinion polling for the next UK general election
context_page_description: The 2017 United Kingdom general election was held on Thursday 8 June 2017, two years after the previous general election in 2015. The governing Conservative Party remained the largest single party in the House of Commons but lost its small overall majority, resulting in the formation of a minority government with a confidence-and-supply agreement with the Democratic Unionist Party of Northern Ireland.
  The Conservative Party, which had governed as a senior coalition partner from 2010 and as a single-party majority government from 2015, was defending a working majority of 17 seats against the Labour Party, the official opposition led by Jeremy Corbyn. Under the Fixed-term Parliaments Act 2011 an election had not been due until May 2020, but a call by Prime Minister Theresa May for a snap election was ratified by the necessary two-thirds vote in the House of Commons on 19 April 2017. May said that she hoped to secure a larger majority to "strengthen [her] hand" in the forthcoming Brexit negotiations.
  Opinion polls had consistently shown strong leads for the Conservatives over Labour. From a 21-point lead, the Conservatives' lead began to diminish in the final weeks of the campaign.
context_section_description: In the 2015 general election, polling companies underestimated the Conservative Party vote and overestimated the Labour Party vote and so failed to predict the result accurately. Afterwards they started making changes to polling practices; recommendations from a review by the British Polling Council are likely to result in further changes. Almost all polls and predictions were for seats in Great Britain only, with Northern Irish parties being either absent from the totals or counted as "other". The Spreadex columns below cover bets on the number of seats each party will win with the midpoint between asking and selling price.
caption: Great Britain opinion polling for the 2017 election; moving average is calculated from the last ten polls. Final point is actual result.  Conservative    Labour    UKIP    Liberal Democrats    SNP    Greens
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