List of Parliamentary constituencies in Dorset

  † Conservative   ‡ Labour   ¤ Liberal Democrat

Constituency[nb 1]	Electorate[1]	Majority[2][nb 2]	Member of Parliament[2]		Nearest opposition[2]		Map
Bournemouth East BC	74,125	8,806		Tobias Ellwood†		Corrie Drew‡
Bournemouth West BC	74,205	10,150		Conor Burns†		David Stokes‡
Christchurch CC	71,520	24,617		Christopher Chope†		Mike Cox¤
Mid Dorset and North Poole CC	65,427	14,898		Michael Tomlinson†		Vikki Slade¤
North Dorset CC	76,765	24,301		Simon Hoare†		David Chadwick¤
Poole BC	73,989	19,116		Robert Syms†		Sue Aitkenhead‡
South Dorset CC	73,809	17,153		Richard Drax†		Carralyn Parkes‡
West Dorset CC	81,897	14,106		Chris Loder†		Edward Morello¤

The Boundary Commission for England decided to retain Dorset's constituencies for the 2010 election, making minor changes to realign constituency boundaries with the boundaries of current local government wards, and to reduce the electoral disparity between constituencies.

Name	Current boundaries	Proposed revision
Bournemouth East BC Bournemouth West BC Christchurch CC Mid Dorset and North Poole CC North Dorset CC Poole BC South Dorset CC West Dorset CC	Parliamentary constituencies in Dorset	Proposed Revision

The Boundary Commission for England submitted their final proposals in respect of the Sixth Periodic Review of Westminster Constituencies (the 2018 review) in September 2018. Although the proposals were immediately laid before Parliament they were not brought forward by the Government for approval. Accordingly, they did not come into effect for the 2019 election which took place on 12 December 2019, and which was contested using the constituency boundaries in place since 2010.

Under the terms of the Parliamentary Voting System and Constituencies Act 2011, the Sixth Review was based on reducing the total number of MPs from 650 to 600 and a strict electoral parity requirement that the electorate of all constituencies should be within a range of 5% either side of the electoral quota.

On 24 March 2020, the Minister of State for the Cabinet Office, Chloe Smith, issued a written statement to Parliament setting out the Government's thinking with regard to parliamentary boundaries.[3] Subsequently, the Parliamentary Constituencies Act 2020[4] was passed into law on 14 December 2020. This formally removed the duty to implement the 2018 review and set out the framework for future boundary reviews. The Act provided that the number of constituencies should remain at the current level of 650, rather than being reduced to 600, while retaining the requirement that the electorate should be no more than +/- 5% from the electoral quota.

The Act specified that the next review should be completed no later than 1 July 2023 and the Boundary Commission formally launched the 2023 Review on 5 January 2021.[5] See 2023 Periodic Review of Westminster constituencies for further details.

Primary data source: House of Commons research briefing - General election results from 1918 to 2019[6]

2019

The number of votes cast for each political party who fielded candidates in constituencies comprising Dorset in the 2019 general election were as follows:

Party	Votes	%	Change from 2017	Seats	Change from 2017
Conservative	241,835	58.3%	0.4%	8	0
Liberal Democrats	78,414	18.9%	6.1%	0	0
Labour	76,310	18.4%	6.8%	0	0
Greens	16,020	3.9%	1.3%	0	0
Others	2,094	0.5%	0.2%	0	0
Total	414,673	100.0		8

A cell marked → (with a different colour background to the preceding cell) indicates that the previous MP continued to sit under a new party name.

• List of constituencies in South West England

Template:Dorset constituencies