# Parliamentary constituencies in Berkshire

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

Conservative †  Labour ‡  Liberal Democrat ¤
| Constituency | Electorate | Majority | Member of Parliament | Nearest opposition |
| 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 and Virginia Water 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
$^1$also includes part of the Surrey borough of Runnymede

## Results history

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

### 2024

The number of votes cast for each political party who fielded candidates in constituencies comprising Berkshire in the 2024 general election were as follows:
| Party | Votes | % | Change from 2019 | Seats | Change from 2019 |
| Conservative | 132,771 | 31.4% | 18.7% | 1 | 5 |
| Labour | 108,614 | 25.7% | 0.4% | 5 | 3 |
| Liberal Democrats | 98,858 | 23.3% | 3.6% | 3 | 3 |
| Reform | 36,252 | 8.6% | 8.1% | 0 | 0 |
| Greens | 25,994 | 6.1% | 3.0 | 0 | 0 |
| Others | 20,886 | 4.9% | 4.5% | 0 | 0 |
| Total | 423,375 | 100.0 | | 9 | |

### 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 | 2024 |
| 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 | 31.4 |
| 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 | 25.7 |
| Liberal Democrat$^1$ | 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 | 23.3 |
| Reform$^2$ | – | – | – | – | – | – | – | – | – | – | – | – | – | – | – | – | – | – | – | – | – | – | – | – | 0.5 | 8.6 |
| Green Party | – | – | – | – | – | – | – | – | – | – | – | – | – | – | – | – | * | * | * | * | * | 1.3 | 3.9 | 1.6 | 3.1 | 6.1 |
| UKIP | – | – | – | – | – | – | – | – | – | – | – | – | – | – | – | – | – | – | * | * | * | 3.0 | 10.6 | 0.8 | * | * |
| 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 | 4.9 |
$^1$pre-1979: Liberal Party; 1983 & 1987 – SDP-Liberal Alliance
$^1$As the Brexit Party in 2019
* 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 |
$^1$1983 & 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 | Wroughton | Wroughton | Wroughton | A. K. Loyd | A. K. Loyd | A. K. Loyd | A. K. Loyd | A. K. Loyd | Strauss | Henderson | Henderson | Henderson | A. K. Loyd |
| Newbury | W. G. Mount | W. G. Mount | W. G. Mount | W. G. Mount | W. G. Mount | W. G. Mount | W. A. Mount | W. A. Mount | W. A. Mount | Mackarness | W. A. Mount | W. A. Mount | W. A. Mount | W. A. Mount |
| Reading | Murdoch | Murdoch | Murdoch | Palmer | Murdoch | Palmer | Palmer | Palmer | Isaacs | Isaacs | Isaacs | Isaacs | Wilson | Wilson |
| Windsor | Richardson-Gardner | Richardson-Gardner | Barry | Barry | Barry | Barry | Barry | Barry | Barry | Mason | Mason | Mason | Mason | Mason |
| Wokingham | Russell | Russell | Russell | Russell | Russell | Young | Young | Gardner | Gardner | Gardner | Gardner | Gardner | Gardner | Gardner |

### 1918 to 1950

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

### 1950 to 1979

Conservative  Labour
| Constituency | 1950 | 1951 | 53 | 1955 | 1959 | 1964 | 1966 | 1970 | Feb 74 | Oct 74 | 1979 |
| Abingdon | Glyn | Glyn | Neave | Neave | Neave | Neave | Neave | Neave | Neave | Neave | T. Benyon |
| Newbury | Hurd | Hurd | Hurd | Hurd | Hurd | Astor | Astor | Astor | McNair-Wilson | McNair-Wilson | McNair-Wilson |
| Reading North | K. Mackay | Bennett | Bennett | | | | | | Durant | Durant | Durant |
| Reading South (1950–55, 74–83) / Reading (1955–74) | Mikardo | Mikardo | Mikardo | Mikardo | Emery | Emery | Lee | Vaughan | Vaughan | Vaughan | Vaughan |
| Windsor / Windsor and Maidenhead (1974) | Mott-Radclyffe | Mott-Radclyffe | Mott-Radclyffe | Mott-Radclyffe | Mott-Radclyffe | Mott-Radclyffe | Mott-Radclyffe | Glyn | Glyn | Glyn | Glyn |
| Wokingham | Remnant | Remnant | Remnant | Remnant | van Straubenzee | van Straubenzee | van Straubenzee | van Straubenzee | van Straubenzee | van Straubenzee | 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 | A. MacKay | A. MacKay | A. MacKay | A. MacKay | A. MacKay | A. MacKay | Lee | Lee | Lee | → | Sunderland | Swallow |
| Newbury | McNair-Wilson | McNair-Wilson | Chaplin | Rendel | Rendel | Rendel | R. Benyon | R. Benyon | R. Benyon | R. Benyon | R. Benyon | Farris | Dillon |
| Reading East / R Central (2024) | Vaughan | Vaughan | Vaughan | Vaughan | Griffiths | Griffiths | Wilson | Wilson | Wilson | Rodda | Rodda | Rodda | Rodda |
| Reading W / RW & Mid Berks ('24) | Durant | Durant | Durant | Durant | Salter | Salter | Salter | Sharma | Sharma | Sharma | Sharma | Sharma | Bailey |
| Slough | Watts | Watts | Watts | Watts | Mactaggart | Mactaggart | Mactaggart | Mactaggart | Mactaggart | Dhesi | Dhesi | Dhesi | Dhesi |
| Wr & Maidenhead / Windsor (1997)$^1$ | Glyn | Glyn | Trend | Trend | Trend | Trend | Afriyie | Afriyie | Afriyie | Afriyie | Afriyie | Afriyie | Rankin |
| Wokingham | van Straubenzee | Redwood | Redwood | Redwood | Redwood | Redwood | Redwood | Redwood | Redwood | Redwood | Redwood | Redwood | Jones |
| Maidenhead | | | | | May | May | May | May | May | May | May | May | Reynolds |
| Earley and Woodley | | | | | | | | | | | | | Yang |
$^1$from 2024 this includes areas of Surrey