Theceremonial county ofDorset (which comprises the twounitary authorities ofDorset andBournemouth, Christchurch and Poole) is divided into 8parliamentary constituencies: 3borough constituencies and 5county constituencies.

  † Conservative  ‡ Labour  ¤ Liberal Democrat

Constituency[nb 1]	Electorate[1]	Majority	Member of Parliament[2]		Nearest opposition[2]		Map
Bournemouth East BC	73,173	5,479		Tom Hayes‡		Tobias Ellwood†
Bournemouth West BC	72,094	3,224		Jessica Toale‡		Conor Burns†
Christchurch CC	71,598	7,455		Christopher Chope†		Mike Cox¤
Mid Dorset and North Poole CC	74,305	1,352		Vikki Slade¤		Michael Tomlinson†
North Dorset CC	72,109	1,589		Simon Hoare†		Gary Jackson¤
Poole BC	72,162	18		Neil Duncan-Jordan‡		Robert Syms†
South Dorset CC	76,640	1,048		Lloyd Hatton‡		Richard Drax†
West Dorset CC	75,390	7,789		Edward Morello¤		Chris Loder†

See2023 review of Westminster constituencies for further details.

Name	Boundaries 2010–2024	Boundaries 2024–present
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

For the2023 review of Westminster constituencies, which redrew the constituency map ahead of the2024 United Kingdom general election, theBoundary Commission for England opted to retain 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.^[3]

The boundary commission recommended the following seats within Dorset:

Containing electoral wards fromBournemouth, Christchurch and Poole

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

Containing electoral wards fromDorset (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^[4]

The number of votes cast for each political party who fielded candidates in constituencies comprising Dorset in the 2024 general election were as follows:^[2]

Party	Votes	%	Change from 2019	Seats	Change from 2019
Conservative	127,188	33.7%	24.6%	2	6
Liberal Democrats	95,463	25.3%	6.4%	2	2
Labour	82,652	21.9%	3.5%	4	4
Reform	45,367	12.0%	New	0
Greens	18,400	4.9%	1.0%	0
Others	8,287	2.2%	1.7%	0
Total	377,357	100.0		8

Note that before 1983 Dorset did not include the Bournemouth and Christchurch areas (see below).

¹1950-1979:Liberal Party; 1983 & 1987 -SDP–Liberal Alliance

* Included in Other

Accurate vote percentages are not applicable for the 1918 election because one candidate stood unopposed.

¹1950-1979:Liberal Party; 1983 & 1987 -SDP–Liberal Alliance

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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.

  Conservative  Liberal

¹original candidate, F. Guest (Lib), disqualified; fresh by-election held June 1910

  Coalition Liberal (1918-22) /National Liberal (1922-23)  Conservative  Independent Conservative  Liberal

  Conservative  Labour

  Conservative  Independent  Labour  Liberal Democrats

• Parliamentary constituencies in South West England

• Lists of constituencies of the Parliament of the United Kingdom in England
• Politics of Dorset
• Parliamentary constituencies in South West England
• Parliamentary constituencies in Dorset
• Lists of divisions in Dorset

• CS1 errors: missing periodical
• Articles with short description
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• Use dmy dates from April 2022