Results of the 2016 United Kingdom European Union membership referendum by constituency

[[File:EU Ref Leave Remain RedBlue 52Split.png|thumb|Results map by constituency

Leave:{{legend|#800026|>70%}}{{legend|#bd0026|65% to 70%}}{{legend|#e31a1c|60% to 65%}}{{legend|#fc4e2a|55% to 60%}}{{legend|#fd8d3c|52% to 55%}}{{legend|#feb24c|<52%}}Remain:{{legend|#a6bddb|<52%}}{{legend|#74a9cf|52% to 55%}}{{legend|#3690c0|55% to 60%}}{{legend|#0570b0|60% to 65%}}{{legend|#045a8d|65% to 70%}}{{legend|#023858|>70%}}]] The results of the 2016 United Kingdom European Union membership referendum were not counted by parliamentary constituencies except in Northern Ireland. However, a number of local councils and districts released the referendum results by electoral ward or constituency, while in some cases constituency boundaries were coterminous with their local government district. For the remaining constituencies, Dr Chris Hanretty, a Reader in Politics at the University of East Anglia, estimated through a demographic model the 'Leave' and 'Remain' votes in each constituency. Hanretty urges caution in the interpretation of the data as the estimates have a margin of error.

This table shows the state of the parties in each constituency as at the 2016 United Kingdom European Union membership referendum. The colours in the "Constituency" column are those associated with the MP at the time. The colours in the "MP's majority" column are those associated with the second placed candidate at that election.

Northern Ireland
See here for the official results announced by constituency.