The result was announced at Manchester Town Hall just after 7 a.m. on June 24. The final count was 17,410,742 votes to leave the European Union against 16,141,241 to remain, a margin of 3.8%. The pound sterling fell to its lowest level against the dollar since 1985 within hours. The referendum, promised by Prime Minister David Cameron to manage dissent within his Conservative Party, had produced an outcome he campaigned against and had no plan to execute. He resigned that morning.
The campaign was defined by technical claims and visceral appeals. The official Leave campaign, Vote Leave, focused on sovereignty and control, famously promoting the slogan “Take Back Control” and the claim that the UK sent £350 million a week to the EU that could be spent on the National Health Service. The Remain campaign, led by Cameron, Chancellor George Osborne, and the Labour Party’s Jeremy Corbyn, emphasized economic risk and security. Turnout was high, at 72.2%, with clear geographic divides: England and Wales voted Leave, while Scotland and Northern Ireland voted Remain.
The central misconception was that the referendum was advisory. While not legally binding, its political force was absolute. The government treated it as a mandate, triggering Article 50 of the Lisbon Treaty in March 2017 to begin a two-year withdrawal process. Another misunderstanding persists about the electorate’s motivation. Subsequent analysis showed that voting patterns correlated more strongly with values and education levels than with direct personal economic circumstance. It was a vote about identity and governance as much as economics.
The vote set in motion a process known as Brexit, which formally occurred on January 31, 2020. Its impact recalibrated the UK’s constitutional structure, straining the union with Scotland and creating a trade border in the Irish Sea. It reshaped the geopolitical landscape of Europe, removing one of the bloc’s largest economies and military powers, and established a new template for populist, nationalist challenges to multinational institutions.