Electoral Statistics 2012

This note provides data on electorates of parliamentary constituencies at December 2012, as published by the Office for National Statistics (ONS) in its annual statistical release Electoral Statistics for UK.

At 1 December 2012 there were 46.3 million people registered to vote in UK parliamentary elections, 247,000 more than in December 2011. The average parliamentary electorate of UK constituencies was 71,314. In 500 constituencies the number of electors increased compared to 2011, while the electorate decreased in 150 constituencies. English seats tend to have larger electorates than constituencies in Scotland, Wales and Northern Ireland.