List of parliamentary constituencies in Berkshire

The county of Berkshire in relation to England

The ceremonial county of Berkshire (which is entirely made up of unitary authorities – Bracknell Forest, Reading, Slough, West Berkshire, Windsor and Maidenhead and Wokingham) is divided into nine parliamentary constituencies: three borough constituencies and six county constituencies.

Constituencies from 2024

Further information: 2024 United Kingdom general election in South East England

  Conservative †   Labour ‡   Liberal Democrat ¤

Constituency	Electorate	Majority	Member of Parliament		Nearest opposition		Map
Bracknell CC	71,660	784		Peter Swallow ‡		James Sunderland †
Earley and Woodley BC	73,548	848		Yuan Yang ‡		Pauline Jorgensen †
Maidenhead CC	75,687	2,963		Joshua Reynolds ¤		Tania Mathias †
Newbury CC	71,982	2,377		Lee Dillon ¤		Laura Farris †
Reading Central BC	73,600	12,637		Matt Rodda ‡		Raj Singh †
Reading West and Mid Berkshire CC	68,781	1,361		Olivia Bailey ‡		Ross Mackinnon †
Slough BC	81,295	3,647		Tan Dhesi ‡		Azhar Chohan (Independent Network)
Windsor CC	73,334	6,457		Jack Rankin †		Pavitar Mann ‡
Wokingham CC	75,082	8,345		Clive Jones ¤		Lucy Demery †

2024 boundary changes

See 2023 Periodic Review of Westminster constituencies for further details.

Former name	Current name
Bracknell CC Maidenhead CC Newbury CC Reading East BC Reading West CC Slough BC Windsor CC Wokingham CC	Bracknell CC Earley and Woodley BC Maidenhead CC Newbury CC Reading Central BC Reading West and Mid Berkshire CC Slough BC Windsor CC Wokingham CC
Boundaries 2010–2024	Boundaries 2024–present

For the 2023 Periodic Review of Westminster constituencies, which redrew the constituency map ahead of the 2024 United Kingdom general election, the Boundary Commission for England opted to combine Berkshire with Hampshire and Surrey as a sub-region of the South East Region. As a result, Windsor now includes Englefield Green in the Surrey borough of Runnymede. The two Reading constituencies (East and West) would be abolished and revert to a single constituency (Reading Central), with two new constituencies created, named Earley and Woodley, and Reading West and Mid Berkshire.

The following constituencies were proposed:

Containing electoral wards from Bracknell Forest

• Bracknell
• Maidenhead (part)

Containing electoral wards from Reading

• Earley and Woodley (part)
• Reading West and Mid Berkshire (part)
• Reading Central

Containing electoral wards from Slough

• Slough
• Windsor (part)¹

Containing electoral wards from West Berkshire

• Reading West and Mid Berkshire (part)
• Newbury

Containing electoral wards from Windsor and Maidenhead

• Maidenhead (part)
• Windsor (part)¹

Containing electoral wards from Wokingham

• Earley and Woodley (part)
• Wokingham

¹also includes part in the Surrey borough of Runnymede

Results history

Primary data source: House of Commons research briefing – General election results from 1918 to 2019

2019

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

Party	Votes	%	Change from 2017	Seats	Change from 2017
Conservative	222,532	50.1%	3.8%	6	0
Labour	115,747	26.1%	6.7%	2	0
Liberal Democrats	87,532	19.7%	9.4%	0	0
Greens	13,796	3.1%	1.5%	0	0
Brexit	2,284	0.5%	new	0	0
Others	2,044	0.5%	0.9%	0	0
Total	443,935	100.0		8

Percentage votes

Note that before 1983 Berkshire additionally covered the southern part of what is now Oxfordshire, and the Eton and Slough areas which now form part of Berkshire were part of Buckinghamshire.

Election year	1922	1923	1924	1929	1945	1950	1951	1955	1959	1964	1966	1970	1974 (F)	1974 (O)	1979	1983	1987	1992	1997	2001	2005	2010	2015	2017	2019
Conservative	54.2	48.2	60.4	48.6	47.0	50.0	56.2	58.5	59.7	47.7	46.5	53.6	44.4	44.2	54.3	54.7	57.2	55.3	42.2	40.2	43.5	50.6	54.3	53.9	50.1
Labour	13.8	16.2	22.9	22.4	37.9	38.1	42.3	39.4	37.1	33.5	39.1	33.3	26.0	28.3	23.5	16.0	16.5	19.8	28.5	30.7	24.0	18.0	21.9	32.8	26.1
Liberal Democrat1	32.1	35.6	16.7	28.9	13.8	11.7	1.4	2.1	3.3	18.5	14.4	12.8	29.2	27.3	21.2	28.1	25.2	23.5	24.6	26.0	27.4	25.2	8.9	10.3	19.7
Green Party	–	–	–	–	–	–	–	–	–	–	–	–	–	–	–	–	*	*	*	*	*	1.3	3.9	1.6	3.1
UKIP	–	–	–	–	–	–	–	–	–	–	–	–	–	–	–	–	–	–	*	*	*	3.0	10.6	0.8	*
Brexit Party	–	–	–	–	–	–	–	–	–	–	–	–	–	–	–	–	–	–	–	–	–	–	–	–	0.5
Other	–	–	–	–	1.3	0.2	–	–	–	0.2	–	0.3	0.3	0.2	1.0	1.2	1.1	1.4	4.7	3.1	5.0	2.0	0.4	0.6	0.5

¹pre-1979: Liberal Party; 1983 & 1987 – SDP-Liberal Alliance

* Included in Other

Accurate vote percentages for the 1918, 1931 and 1935 elections are unavailable because some candidates were elected unopposed.

Seats

Election year	1983	1987	1992	1997	2001	2005	2010	2015	2017	2019	2024
Conservative	7	7	7	4	4	6	7	7	6	6	1
Labour	0	0	0	3	3	2	1	1	2	2	5
Liberal Democrat1	0	0	0	1	1	0	0	0	0	0	3
Total	7	7	7	8	8	8	8	8	8	8	9

¹1983 & 1987 – SDP-Liberal Alliance

Maps

1885–1910

• 
  1885
• 
  1886
• 
  1892
• 
  1895
• 
  1900
• 
  1906
• 
  Jan 1910
• 
  Dec 1910

1918–1945

• 
  1918
• 
  1922
• 
  1923
• 
  1924
• 
  1929
• 
  1931
• 
  1935
• 
  1945

1950–1979

• 
  1950
• 
  1951
• 
  1955
• 
  1959
• 
  1964
• 
  1966
• 
  1970
• 
  Feb 1974
• 
  Oct 1974
• 
  1979

1983–present

• 
  1983
• 
  1987
• 
  1992
• 
  1997
• 
  2001
• 
  2005
• 
  2010
• 
  2015
• 
  2017
• 
  2019
• 
  2024

Historical representation by party

1885 to 1918

  Conservative   Liberal

Constituency	1885	1886	90	1892	1895	98	1900	01	04	1906	Jan 1910	Dec 1910	13	16
Abingdon	Wroughton				A. K. Loyd					Strauss	Henderson			A. K. Loyd
Newbury	W. G. Mount						W. A. Mount			Mackarness	W. A. Mount
Reading	Murdoch			Palmer	Murdoch	Palmer			Isaacs				Wilson
Windsor	Richardson-Gardner		Barry							Mason
Wokingham	Russell					Young		Gardner

1918 to 1950

  Conservative   Labour   Liberal

Constituency	1918	21	22	1922	1923	1924	1929	1931	1935	42	1945
Abingdon	Wigan	A. T. Loyd			Lessing	Glyn
Newbury	W. A. Mount		Brown		Stranger	Brown					Hurd
Reading	Wilson			Cadogan	Hastings	Williams	Hastings	Howitt			Mikardo
Windsor	Gardner			Somerville						Mott-Radclyffe

1950 to 1979

  Conservative   Labour

Constituency	1950	1951	53	1955	1959	1964	1966	1970	Feb 74	Oct 74	1979
Abingdon	Glyn		Neave								T. Benyon
Newbury	Hurd					Astor			McNair-Wilson
Reading North	K. Mackay	Bennett							Durant
Reading South (1950–55, 74–83) / Reading (1955–74)	Mikardo				Emery		Lee	Vaughan
Windsor / Windsor and Maidenhead (1974)	Mott-Radclyffe							Glyn
Wokingham	Remnant				van Straubenzee

1983 to present

  Conservative   Labour   Liberal Democrats

Constituency	1983	1987	1992	93	1997	2001	2005	2010	2015	2017	19	2019	2024
East Berkshire / Bracknell (1997)	A. MacKay							Lee			→	Sunderland	Swallow
Newbury	McNair-Wilson		Chaplin	Rendel			R. Benyon					Farris	Dillon
Reading East / R Central (2024)	Vaughan				Griffiths		Wilson			Rodda
Reading W / RW & Mid Berks ('24)	Durant				Salter			Sharma					Bailey
Slough	Watts				Mactaggart					Dhesi
Wr & Maidenhead / Windsor (1997)1	Glyn		Trend				Afriyie						Rankin
Wokingham	van Straubenzee	Redwood											Jones
Maidenhead					May								Reynolds
Earley and Woodley													Yang

¹from 2024 this includes areas of Surrey

See also

• List of parliamentary constituencies in the South East (region)
• History of parliamentary constituencies and boundaries in Berkshire

References

General

• "Boundary Commission for England: Fifth Periodical Report" (PDF). Boundary Commission for England. Crown Copyright. Archived from the original (PDF) on 26 July 2011. Retrieved 6 November 2009.
• Craig, Frederick Walter Scott (1972). Boundaries of Parliamentary Constituencies 1885–1972. Chichester, Sussex: Political Reference Publications. ISBN 0-900178-13-2.

Specific