The information requested falls within the responsibility of the UK Statistics Authority. I have asked the authority to reply.
Letter from Jil Matheson, National Statistician, to Lord Roberts of Conwy, dated November 2009.
As National Statistician I have been asked to reply to your questions asking what was the average number of electors per parliamentary constituency in (a) England, (b) Wales, (c) Scotland and (d) Northern Ireland, at the latest date for which figures are available. (HL6226)
The table below shows the average number of parliamentary electors in (a) English, (b) Welsh, (c) Scottish and (d) Northern Ireland parliamentary constituencies for 2008 which is the latest date for which figures are available.
2008 England 71,668 Wales 56,544 Scotland 65,850 Northern Ireland 63,055
1. Parliamentary constituencies are based on existing boundaries.
Source: Office for National Statistics, General Register Office for Scotland, and Electoral Office for Northern Ireland.