The 2016 EU referendum — report on the 23 June 2016 referendum on the UK's membership of the European Union

The Electoral Commission's official report on the administration and certified result of the referendum: Leave 17,410,742 (51.9%) vs Remain 16,141,241 (48.1%), turnout 72.2% — the highest for a UK-wide vote since 1992. Records that the registration-website outage before the deadline was caused by exceptional demand, and the deadline was extended by legislation.