# Parliamentary representation from Berkshire

The historic county of Berkshire, in the 21st century region of South East England, was represented in Parliament from the 13th century. This article provides a list of constituencies constituting the Parliamentary representation from Berkshire.
In 1889 Berkshire became an administrative county. In 1974 a new shire county of Berkshire lost the Abingdon area to Oxfordshire, while the Slough district was transferred from Buckinghamshire. In 1997 the ceremonial county of Berkshire was divided between several unitary authorities.
The first part of this article covers the constituencies wholly or predominantly within the area of the historic county of Berkshire, both before and after the administrative changes of 1889, 1974 and 1997. The second part refers to constituencies mostly in another historic county, which included some territory from the historic county of Berkshire. The summaries section only refers to the constituencies included in the first section of the constituency list.

## List of constituencies

Article names are followed by (UK Parliament constituency). The constituencies which existed in 1707 were those previously represented in the Parliament of England.
Key to abbreviations:-
* (Type) BC: Borough constituency, CC: County constituency.
* (County in Notes) B1 historic county of Berkshire (to 1889), B2 administrative county of Berkshire (1889–1974), B3 shire/ceremonial county of Berkshire (from 1974), O shire county of Oxfordshire.

### Constituencies wholly or predominantly in the historic county

| Constituency | Type | From | To | MPs | Notes |
| Abingdon | BC (1558–1885) | 1558 | 1983 | 1 | B1, B2, O |
| Abingdon | CC (1885–1983) | 1558 | 1983 | 1 | B1, B2, O |
| Berkshire | CC | 1290 | 1885 | 2 (1290–1654) | B1 |
| Berkshire | CC | 1290 | 1885 | 5 (1654–1659) | B1 |
| Berkshire | CC | 1290 | 1885 | 2 (1659–1832) | B1 |
| Berkshire | CC | 1290 | 1885 | 3 (1832–1885) | B1 |
| East Berkshire | CC | 1983 | 1997 | 1 | B3 |
| Bracknell | CC | 1997 | * | 1 | B3 |
| Maidenhead | CC | 1997 | * | 1 | B |
| Newbury | CC | 1885 | * | 1 | B1, B2, B3 |
| Reading | BC | 1295 | 1950 | 2 (1295–1654) | B1, B2: Includes Parliamentary Borough of Reading article for pre-1885. |
| Reading | BC | 1295 | 1950 | 1 (1654–1659) | B1, B2: Includes Parliamentary Borough of Reading article for pre-1885. |
| Reading | BC | 1295 | 1950 | 2 (1659–1885) | B1, B2: Includes Parliamentary Borough of Reading article for pre-1885. |
| Reading | BC | 1295 | 1950 | 1 (1885–1950) | B1, B2: Includes Parliamentary Borough of Reading article for pre-1885. |
| Reading | BC | 1955 | 1974 | 1 | B1, B2: Includes Parliamentary Borough of Reading article for pre-1885. |
| Reading East | CC (1983–1997) | 1983 | * | 1 | B3 |
| Reading East | BC (1997–*) | 1983 | * | 1 | B3 |
| Reading North | BC | 1950 | 1955 | 1 | B2, B3 |
| Reading North | BC | 1974 | 1983 | 1 | B2, B3 |
| Reading South | BC | 1950 | 1955 | 1 | B2, B3 |
| Reading South | CC | 1974 | 1983 | 1 | B2, B3 |
| Reading West | CC | 1983 | * | 1 | B3 |
| Wallingford | BC | 1295 | 1885 | 2 (1295–1832) | B1: Unrepresented 1654–1659 |
| Wallingford | BC | 1295 | 1885 | 1 (1832–1885) | B1: Unrepresented 1654–1659 |
| Windsor | BC | 1302 | By 1377 | 2 | B1, B2, B3: Including New Windsor. Unrepresented 1654–1659. Includes part of the historic counties of Buckinghamshire and Middlesex from 1997. |
| Windsor | BC (1424–1918) | 1424 | 1974 | 2 (1424–1868) | B1, B2, B3: Including New Windsor. Unrepresented 1654–1659. Includes part of the historic counties of Buckinghamshire and Middlesex from 1997. |
| Windsor | CC (1918–1974) | 1424 | 1974 | 1 (1868–1974) | B1, B2, B3: Including New Windsor. Unrepresented 1654–1659. Includes part of the historic counties of Buckinghamshire and Middlesex from 1997. |
| Windsor | CC | 1997 | * | 1 | B1, B2, B3: Including New Windsor. Unrepresented 1654–1659. Includes part of the historic counties of Buckinghamshire and Middlesex from 1997. |
| Windsor and Maidenhead | CC | 1974 | 1997 | 1 | B3: Includes part of historic county of Buckinghamshire from 1983. |
| Wokingham | CC | 1885 | 1918 | 1 | B1, B2, B3 |
| Wokingham | CC | 1950 | * | 1 | B1, B2, B3 |

### Constituencies mostly in another historic county

| Constituency | Type | From | To | MPs | Notes |
| Oxford West and Abingdon | CC | 1983 | * | 1 | O: Includes the Abingdon area. |
| Wantage | CC | 1983 | * | 1 | O: Includes the Wallingford area. |

### Periods constituencies represented

| | 1290–1295 | 1295–1302 | 1302–<1377 | <1377–1424 | 1424–1558 | 1558–1654 | 1654–1659 | 1659–1832 |
| Abingdon | | | | | | 1558–1983 | 1558–1983 | 1558–1983 |
| Berkshire | 1290–1885 | 1290–1885 | 1290–1885 | 1290–1885 | 1290–1885 | 1290–1885 | 1290–1885 | 1290–1885 |
| Reading | | 1295–1950 | 1295–1950 | 1295–1950 | 1295–1950 | 1295–1950 | 1295–1950 | 1295–1950 |
| Wallingford | | 1295–1654 | 1295–1654 | 1295–1654 | 1295–1654 | 1295–1654 | | 1659–1885 |
| Windsor | | | 1302–<1377 | | 1424–1654 | 1424–1654 | | 1659–1974 |
| | 1832–1885 | 1885–1918 | 1918–1950 | 1950–1955 | 1955–1974 | 1974–1983 | 1983–1997 | 1997–* |
| Abingdon | 1558–1983 | 1558–1983 | 1558–1983 | 1558–1983 | 1558–1983 | 1558–1983 | | |
| Berkshire | 1290–1885 | | | | | | | |
| East Berkshire | | | | | | | 1983–1997 | |
| Bracknell | | | | | | | | 1997–* |
| Maidenhead | | | | | | | | 1997–* |
| Newbury | | 1885–* | 1885–* | 1885–* | 1885–* | 1885–* | 1885–* | 1885–* |
| Oxford West and Abingdon | | | | | | | 1983–* | 1983–* |
| Reading | 1295–1950 | 1295–1950 | 1295–1950 | | 1955–1974 | | | |
| Reading East | | | | | | | 1983–* | 1983–* |
| Reading North | | | | 1950–1955 | | 1974–1983 | | |
| Reading South | | | | 1950–1955 | | 1974–1983 | | |
| Reading West | | | | | | | 1983–* | 1983–* |
| Wallingford | 1659–1885 | | | | | | | |
| Wantage | | | | | | | 1983–* | 1983–* |
| Windsor | 1659–1974 | 1659–1974 | 1659–1974 | 1659–1974 | 1659–1974 | | | 1997–* |
| Windsor and Maidenhead | | | | | | 1974–1997 | 1974–1997 | |
| Wokingham | | 1885–1918 | | 1950–* | 1950–* | 1950–* | 1950–* | 1950–* |

## Summaries
### Summary of constituencies by type and period

| Type | 1290 | 1295 | 1302 | <1377 | 1424 | 1558 | 1654 | 1659 | 1832 | 1868 | 1885 | 1918 | 1950 | 1955 | 1974 | 1983 | 1997 |
| Borough | – | 2 | 3 | 2 | 3 | 4 | 2 | 4 | 4 | 4 | 2 | 1 | 2 | 1 | 1 | – | 1 |
| County | 1 | 1 | 1 | 1 | 1 | 1 | 1 | 1 | 1 | 1 | 3 | 3 | 4 | 4 | 5 | 6 | 6 |
| Total | 1 | 3 | 4 | 3 | 4 | 5 | 3 | 5 | 5 | 5 | 5 | 4 | 6 | 5 | 6 | 6 | 7 |

### Summary of members of parliament by type and period

| Type | 1290 | 1295 | 1302 | <1377 | 1424 | 1558 | 1654 | 1659 | 1832 | 1868 | 1885 | 1918 | 1950 | 1955 | 1974 | 1983 | 1997 |
| Borough | – | 4 | 6 | 4 | 6 | 7 | 2 | 7 | 6 | 5 | 2 | 1 | 2 | 1 | 1 | – | 1 |
| County | 2 | 2 | 2 | 2 | 2 | 2 | 5 | 2 | 3 | 3 | 3 | 3 | 4 | 4 | 5 | 6 | 6 |
| Total | 2 | 6 | 8 | 6 | 8 | 9 | 7 | 9 | 9 | 8 | 5 | 4 | 6 | 5 | 6 | 6 | 7 |