# Parliamentary constituencies in Northamptonshire

The county of Northamptonshire is divided into 7 parliamentary constituencies – 2 borough constituencies and 5 county constituencies.

## Constituencies

Conservative †  Labour ‡
| Constituency | Electorate | Majority | Member of Parliament | Nearest opposition |
| Corby and East Northamptonshire CC | 78,770 | 6,331 | Lee Barron ‡ | Tom Pursglove † |
| Daventry CC | 76,539 | 3,012 | Stuart Andrew † | Marianne Kimani ‡ |
| Kettering CC | 79,360 | 3,900 | Rosie Wrighting ‡ | Philip Hollobone † |
| Northampton North BC | 75,713 | 9,014 | Lucy Rigby ‡ | Dan Bennett † |
| Northampton South BC | 71,512 | 4,071 | Mike Readers ‡ | Andrew Lewer † |
| South Northamptonshire CC | 76,555 | 3,687 | Sarah Bool † | Rufia Ashraf ‡ |
| Wellingborough and Rushden CC | 77,542 | 5,486 | Gen Kitchen ‡ | David Goss † |

## 2024 boundary changes

See 2023 Periodic Review of Westminster constituencies for further details.
| Former name | Boundaries 2010–2024 | Current name | Boundaries 2024–present |
| Corby CC Daventry CC Kettering CC Northampton North BC Northampton South BC South Northamptonshire CC Wellingborough CC | 2010–2024 constituencies in Northamptonshire | Corby and East Northamptonshire CC Daventry CC Kettering CC Northampton North BC Northampton South BC South Northamptonshire CC Wellingborough and Rushden CC | Current constituencies in Northamptonshire |
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 maintained seven constituencies in Northamptonshire, as detailed below, with boundary changes to reflect changes to ward boundaries following the reorganisation of local government authorities within the county and to bring the electorates within the statutory range. Corby was renamed Corby and East Northamptonshire, and Wellingborough renamed Wellingborough and Rushden. These changes came into effect from the 2024 general election.
Containing electoral wards from North Northamptonshire
* Corby and East Northamptonshire
* Daventry (part)
* Kettering
* South Northamptonshire (part)
* Wellingborough and Rushden
Containing electoral wards from West Northamptonshire
* Daventry (part)
* Northampton North
* Northampton South
* South Northamptonshire (part)

## 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 Northamptonshire in the 2024 general election were as follows:
| Party | Votes | % | Change from 2019 | Seats | Change from 2019 |
| Labour | 122,226 | 36.3% | 7.2% | 5 | 5 |
| Conservative | 100,203 | 29.8% | 29.2% | 2 | 5 |
| Reform | 61,502 | 18.3% | New | 0 | |
| Greens | 23,170 | 6.9% | 4.0% | 0 | |
| Liberal Democrats | 22,306 | 6.6% | 1.8% | 0 | |
| Others | 6,894 | 2.0% | 1.4 | 0 | |
| Total | 336,331 | 100.0 | | 7 | |

### Percentage votes

| Election year | 1974 (Feb) | 1974 (Oct) | 1979 | 1983 | 1987 | 1992 | 1997 | 2001 | 2005 | 2010 | 2015 | 2017 | 2019 | 2024 |
| Labour | 38.6 | 41.3 | 36.3 | 25.5 | 27.1 | 33.5 | 45.0 | 43.8 | 37.5 | 25.7 | 25.7 | 35.9 | 29.1 | 36.3 |
| Conservative | 39.1 | 40.6 | 50.2 | 49.0 | 51.7 | 51.8 | 40.4 | 41.2 | 43.1 | 47.4 | 50.6 | 55.7 | 59.0 | 29.8 |
| Reform | – | – | – | – | – | – | – | – | – | – | – | – | – | 18.3 |
| Green Party | – | – | – | – | * | * | * | * | * | 0.8 | 3.5 | 1.7 | 2.9 | 6.9 |
| Liberal Democrat$^1$ | 22.0 | 18.1 | 12.8 | 25.2 | 20.8 | 14.3 | 11.1 | 12.6 | 15.2 | 19.1 | 4.1 | 4.1 | 8.4 | 6.6 |
| UKIP | – | – | – | – | – | – | * | * | * | 2.8 | 16.0 | 2.5 | * | – |
| Other | 0.3 | – | 0.7 | 0.2 | 0.4 | 0.4 | 3.4 | 2.5 | 4.2 | 4.3 | 0.1 | 0.1 | 0.6 | 2.0 |
$^1$1974 & 1979 – Liberal Party; 1983 & 1987 – SDP-Liberal Alliance
* Included in Other

### Seats

| Election year | 1974 (Feb) | 1974 (Oct) | 1979 | 1983 | 1987 | 1992 | 1997 | 2001 | 2005 | 2010 | 2015 | 2017 | 2019 | 2024 |
| Labour | 2 | 2 | 1 | 0 | 0 | 0 | 5 | 5 | 2 | 0 | 0 | 0 | 0 | 5 |
| Conservative | 3 | 3 | 4 | 6 | 6 | 6 | 1 | 1 | 4 | 7 | 7 | 7 | 7 | 2 |
| Total | 5 | 5 | 5 | 6 | 6 | 6 | 6 | 6 | 6 | 7 | 7 | 7 | 7 | 7 |

### 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

#### 1974–present

The borders of Northamptonshire changed from 1974, with the Soke of Peterborough area becoming part of neighbouring Cambridgeshire.
* Feb 1974
* Oct 1974
* 1979
* 1983
* 1987
* 1992
* 1997
* 2001
* 2005
* 2010
* 2015
* 2017
* 2019
* 2024

## Historical representation by party

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.

### 1885 to 1918

Conservative  Independent Liberal  Labour  Liberal  Liberal-Labour  Liberal Unionist  National Party
| Constituency | 1885 | 1886 | 89 | 91 | 1892 | 1895 | 1900 | 1906 | Jan 1910 | Dec 1910 | 17 | 18 |
| Northampton | Labouchère | Labouchère | Labouchère | Labouchère | Labouchère | Labouchère | Labouchère | Paul | Lees-Smith | Lees-Smith | Lees-Smith | Lees-Smith |
| Northampton | Bradlaugh | Bradlaugh | Bradlaugh | Manfield | Manfield | Drucker | Shipman | Shipman | McCurdy | McCurdy | McCurdy | McCurdy |
| Northamptonshire East | Channing | Channing | Channing | Channing | Channing | Channing | Channing | Channing | Channing | Money | Money | → |
| Northamptonshire Mid | Spencer | Spencer | Spencer | Spencer | Spencer | Pender | Spencer | Manfield | Manfield | Manfield | Manfield | Manfield |
| Northamptonshire North | Cecil | Cecil | Cecil | Cecil | Cecil | Monckton | Stopford-Sackville | Nicholls | Brassey | Brassey | Brassey | Brassey |
| Northamptonshire South | Knightley | Knightley | Knightley | Knightley | Guthrie | Douglas-Pennant | FitzRoy | Grove | FitzRoy | FitzRoy | → | → |
| Peterborough | Wentworth-FitzWilliam | → | Morton | Morton | Morton | Purvis | Purvis | Greenwood | Greenwood | Greenwood | Greenwood | Greenwood |

### 1918 to 1950

Coalition Liberal (1918–22) / National Liberal (1922–23)  Conservative  Co-operative  Labour  Speaker
| Constituency | 1918 | 1922 | 1923 | 1924 | 28 | 1929 | 1931 | 1935 | 40 | 43 | 1945 |
| Daventry | FitzRoy | FitzRoy | FitzRoy | FitzRoy | → | → | → | → | → | R, Manningham-Buller | R, Manningham-Buller |
| Kettering | Waterson | Parker | Perry | M. Manningham-Buller | M. Manningham-Buller | Perry | Eastwood | Eastwood | Profumo | Profumo | Mitchison |
| Northampton | McCurdy | McCurdy | Bondfield | Holland | Malone | Malone | M. Manningham-Buller | M. Manningham-Buller | Summers | Summers | Paget |
| Peterborough | Brassey | Brassey | Brassey | Brassey | Brassey | Horrabin | Cecil | Cecil | Cecil | Hely-Hutchinson | Tiffany |
| Wellingborough | Smith | Shakespeare | Cove | Cove | Cove | Dallas | James | James | James | James | Lindgren |

### 1950–1983

Conservative  Labour
| Constituency | 1950 | 1951 | 1955 | 1959 | 62 | 1964 | 1966 | 69 | 1970 | Feb 1974 | Oct 1974 | 1979 |
| Kettering | Mitchison | Mitchison | Mitchison | Mitchison | Mitchison | de Freitas | de Freitas | de Freitas | de Freitas | de Freitas | de Freitas | Homewood |
| Northampton / Northampton North (1974) | Paget | Paget | Paget | Paget | Paget | Paget | Paget | Paget | Paget | Colquhoun | Colquhoun | Marlow |
| Wellingborough | Lindgren | Lindgren | Lindgren | Hamilton | Hamilton | Howarth | Howarth | Fry | Fry | Fry | Fry | Fry |
| Peterborough | Nicholls | Nicholls | Nicholls | Nicholls | Nicholls | Nicholls | Nicholls | Nicholls | Nicholls | Transferred to Huntingdon and Peterborough | Transferred to Huntingdon and Peterborough | Transferred to Huntingdon and Peterborough |
| Northamptonshire South / Daventry (1974) | Manningham-Buller | Manningham-Buller | Manningham-Buller | Manningham-Buller | Jones | Jones | Jones | Jones | Jones | Jones | Jones | Prentice |
| Northampton South | | | | | | | | | | Morris | Morris | Morris |

### 1983–present

Conservative  Labour
| Constituency | 1983 | 1987 | 1992 | 1997 | 2001 | 2005 | 2010 | 12 | 2015 | 2017 | 2019 | 24 | 2024 |
| Corby / Corby & East Northants (2024) | Powell | Powell | Powell | Hope | Hope | Hope | Mensch | Sawford | Pursglove | Pursglove | Pursglove | Pursglove | Barron |
| Daventry | Prentice | Boswell | Boswell | Boswell | Boswell | Boswell | Heaton-Harris | Heaton-Harris | Heaton-Harris | Heaton-Harris | Heaton-Harris | Heaton-Harris | Andrew |
| Kettering | Freeman | Freeman | Freeman | Sawford | Sawford | Hollobone | Hollobone | Hollobone | Hollobone | Hollobone | Hollobone | Hollobone | Wrighting |
| Northampton North | Marlow | Marlow | Marlow | Keeble | Keeble | Keeble | Ellis | Ellis | Ellis | Ellis | Ellis | Ellis | Rigby |
| Northampton South | Morris | Morris | Morris | Clarke | Clarke | Binley | Binley | Binley | Mackintosh | Lewer | Lewer | Lewer | Reader |
| Wellingborough / W & Rushden (2024) | Fry | Fry | Fry | Stinchcombe | Stinchcombe | Bone | Bone | Bone | Bone | Bone | Bone | Kitchen | Kitchen |
| South Northamptonshire | | | | | | | Leadsom | Leadsom | Leadsom | Leadsom | Leadsom | Leadsom | Bool |