The ceremonial county of Dorset (which comprises the two unitary authorities of Dorset and Bournemouth, Christchurch and Poole) is divided into 8 parliamentary constituencies: 3 borough constituencies and 5 county constituencies.

  † Conservative   ‡ Labour   ¤ Liberal Democrat

More information Constituency, Electorate ...

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¤

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Under the Fifth Periodic Review of Westminster constituencies, 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.

See 2023 Periodic Review of Westminster constituencies for further details.

Following the abandonment of the Sixth Periodic Review (the 2018 review), the Boundary Commission for England formally launched the 2023 Review on 5 January 2021.^[3] Initial proposals were published on 8 June 2021 and, following two periods of public consultation, revised proposals were published on 8 November 2022. The final recommendations were published on 28 June 2023.

The commission has proposed retaining the eight current constituencies in Dorset, with minor boundary changes to reflect changes to ward boundaries following the reorganisation of local government authorities within the county.^[4]

Containing electoral wards from Bournemouth, Christchurch and Poole

• Bournemouth East
• Bournemouth West
• Christchurch (part)
• Mid Dorset and North Poole (part)
• Poole

Containing electoral wards from Dorset (unitary authority)

• Christchurch (part)
• Mid Dorset and North Poole (part)
• North Dorset
• South Dorset
• West Dorset

Primary data source: House of Commons research briefing - General election results from 1918 to 2019^[5]

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:

More information Party, Votes ...

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

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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