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Sizes of Constituency Electorates

Published Friday, March 4, 2011

The Parliamentary Voting System and Constituencies Act contains measures to set the number of UK parliamentary constituencies at 600 and to limit the permitted variation in the number of registered electors for a constituency. This note considers the possible impact by region of the proposals in the Bill and compares the sizes of constituency electorates at 1 December 2010. It looks at the variation in electorate sizes about national and regional means and about the UK Electoral Quota as defined in the Act.

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The Parliamentary Voting System and Constituencies Act contains measures to set the number of UK parliamentary constituencies at 600 and to limit the permitted variation in the number of registered electors for a constituency. This note considers the possible impact by region of the proposals in the Bill and compares the sizes of constituency electorates at 1 December 2010. It looks at the variation in electorate sizes about national and regional means and about the UK Electoral Quota as defined in the Act.

Commons Briefing papers SN05677

Author: Feargal McGuinness

Topics: Electoral register, General elections

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