Claimant Count denominators for Westminster Parliamentary Constituencies have been updated for allareas in Great Britain for 2002 to 2012 based on the latest population estimates in line with the 2011 Census.

The 2012 denominators will be carried forward for 2013 and 2014 until updated estimates are released.

Denominators for Westminster Parliamentary Constituencies in Northern Ireland will be updated for 2001 to 2012 with the next Claimant Count release on 11 June 2014 based on revised estimates published on 15 May 2014.