The alternative vote (AV) referendum was a public vote held across the United Kingdom on 5 May 2011 in which the electorate voted on a proposal to introduce a new voting system.
The question posed by the referendum was "At present, the UK uses the "first past the post" system to elect MPs to the House of Commons. Should the "alternative vote" system be used instead?"
The overall result for the UK was clear, with around 68 per cent of the population voting ‘No’ to AV. In London the result was closer with 60 per cent voting ‘No’, and the capital accounted for most of the areas in the UK that returned a 'Yes' majority. Results are analysed in DMAG Briefing 2011-04, and a spreadsheet of the full results is available.