# Northampton (UK Parliament constituency)

Northampton was a parliamentary constituency (centred on the town of Northampton), which existed until 1974.
It returned two Members of Parliament (MPs) to the House of Commons of England until 1707, the House of Commons of Great Britain until 1800 and to the House of Commons of the Parliament of the United Kingdom until its representation was reduced to one member for the 1918 general election. The constituency was abolished for the February 1974 general election, when it was replaced by the new constituencies of Northampton North and Northampton South.
A former MP of note for the constituency was Spencer Perceval, the only British Prime Minister to be assassinated.

## Members of Parliament
### MPs 1295–1640

* 1295: constituency established, electing two MPs
| Parliament | First member | Second member |
| 1377 | Sir Gerard de Braybooke of Castle Ashby |
| 1377 | Sir Thomas Preston of Gretton |
| 1378 | Sir John Seton |
| 1379 | Sir Thomas Preston of Gretton |
| 1380 | Sir Thomas Preston of Gretton |
| 1382 | Giles St John of Plumpton |
| 1386 | William Spriggy | William Ringwood |
| 1388 (Feb) | Thomas Pirie | John Stotesbury |
| 1388 (Sep) | John Honybourne | John Besford |
| 1390 (Jan) | John Colingtree | John Sywell |
| 1390 (Nov) | |
| 1391 | William Begworth | John Stotesbury |
| 1393 | William Spriggy | Stephen Wappenham |
| 1394 | |
| 1395 | Nicholas Horncastle | John Woodward |
| 1397 (Jan) | Richard Stormsworth | Thomas Overton |
| 1397 (Sep) | |
| 1399 | John Loudham | John Spring |
| 1401 | |
| 1406 | Henry Empingham | Thomas Wintringham |
| 1407 | John Rivell | John Temple |
| 1410 | Simon Dunstall | John Lincoln |
| 1411 | Richard Wems | William Rushden |
| 1413 (Feb) | |
| 1413 (May) | Roger Maltman | Alexander Deyster |
| 1414 (Apr) | |
| 1414 (Nov) | Geoffrey Balde | John Hethersett |
| 1415 | |
| 1416 (Mar) | John Hendley | John Buckingham |
| 1416 (Oct) | |
| 1417 | William Clerk | Thomas Colley |
| 1419 | Thomas Stotesbury | Ralph Passenham |
| 1420 | William Maltman | William Harpole |
| 1421 (May) | John Bernhill | John Colden |
| 1421 (Dec) | John Spriggy | Stephen Kynnesman |
| 1427 | Thomas Compworth |
| 1477–1478 | Robert Pemberton |
| 1510–1515 | No names known |
| 1523 | John Parvyn | Thomas Doddington |
| 1529 | Lawrence Manley | Nicholas Rand |
| 1536 | ? |
| 1539 | ? |
| 1542 | ? |
| 1545 | ? |
| 1547 | Richard Wenman | Anthony Bryan |
| 1553 (Mar) | George Tresham | William Chauncy |
| 1553 (Oct) | Francis Morgan | Lawrence Manley |
| 1554 (Apr) | Francis Morgan | John Horpool |
| 1554 (Nov) | Henry Clerke | Ralph Freeman |
| 1555 | Nicholas Rand | John Balgye |
| 1558 | Thomas Colles | Edward Manley |
| 1559 (Jan) | William Carvell | Edmund (or Edward) Kinwelmersh |
| 1562–3 | Lewis Montgomery | Ralph Lane |
| 1571 | Christopher Yelverton | William Lane|- |
| 1572 (Apr) | Christopher Yelverton | John Spencer |
| 1584 (Nov) | Sir Richard Knightley | Thomas Catesby |
| 1586 (Sep) | Sir Richard Knightley | Peter Wentworth |
| 1588 (Oct) | Peter Wentworth | Richard Knollys |
| 1593 | Valentine Knightley | Peter Wentworth |
| 1597 (Oct) | Christopher Yelverton | Henry Yelverton |
| 1601 | Henry Hickman | Francis Tate |
| 1604 | Henry Yelverton | Edward Mercer |
| 1614 | Henry Yelverton | Francis Beale |
| 1621–1622 | Richard Spencer | Thomas Crewe |
| 1624 | Richard Spencer | Christopher Sherland |
| 1625 | Richard Spencer | Christopher Sherland |
| 1626 | Richard Spencer | Christopher Sherland |
| 1628 | Richard Spencer | Christopher Sherland |
| 1629–1640 | No Parliaments convened | No Parliaments convened |

### MPs 1640–1918

| Election | | First member | First party | | Second member | Second party |
| April 1640 | | Richard Knightley | Parliamentarian | | Zouch Tate | Parliamentarian |
| November 1640 | | Richard Knightley | Parliamentarian | | Zouch Tate | Parliamentarian |
| December 1648 | Knightley excluded in Pride's Purge – seat vacant | Knightley excluded in Pride's Purge – seat vacant | Knightley excluded in Pride's Purge – seat vacant | Tate not recorded as sitting after Pride's Purge | Tate not recorded as sitting after Pride's Purge | Tate not recorded as sitting after Pride's Purge |
| 1653 | Northampton was unrepresented in the Barebones Parliament | Northampton was unrepresented in the Barebones Parliament | Northampton was unrepresented in the Barebones Parliament | Northampton was unrepresented in the Barebones Parliament | Northampton was unrepresented in the Barebones Parliament | Northampton was unrepresented in the Barebones Parliament |
| 1654 | | Peter Whalley | | Northampton had only one seat in the First and Second Parliaments of the Protectorate | Northampton had only one seat in the First and Second Parliaments of the Protectorate | Northampton had only one seat in the First and Second Parliaments of the Protectorate |
| 1656 | | Francis Harvey | | Northampton had only one seat in the First and Second Parliaments of the Protectorate | Northampton had only one seat in the First and Second Parliaments of the Protectorate | Northampton had only one seat in the First and Second Parliaments of the Protectorate |
| January 1659 | | Francis Harvey | | | James Langham | |
| May 1659 | Not represented in the restored Rump | Not represented in the restored Rump | Not represented in the restored Rump | Not represented in the restored Rump | Not represented in the restored Rump | Not represented in the restored Rump |
| March 1660 | | Francis Harvey | | | Richard Rainsford | |
| June 1660 | | Sir John Norwich, Bt. | | | Richard Rainsford | |
| April 1661 | | Francis Harvey | | | James Langham | |
| November 1661 | | Sir Charles Compton | | | Richard Rainsford | |
| 1662 | | Sir James Langham, Bt. | | | Richard Rainsford | |
| March 1663 | | Sir William Dudley, Bt. | | | Richard Rainsford | |
| April 1663 | | Hon. Christopher Hatton | | | Richard Rainsford | |
| March 1664 | | Hon. Christopher Hatton | | | Sir John Bernard | |
| April 1664 | | Hon. Christopher Hatton | | | Sir Henry Yelverton, Bt. | |
| 1670 | | Sir William Fermor | | | Henry O'Brien | |
| 1678 | | Sir William Fermor | | | Hon. Ralph Montagu | |
| February 1679 | | Sir William Fermor | | | Sir Hugh Cholmley, Bt. | |
| August 1679 | | William Langham | | | Hon. Ralph Montagu | |
| 1685 | | Richard Rainsford | | | Sir Justinian Isham, Bt. | |
| 1689 | | William Langham | | | Sir Justinian Isham, Bt. | |
| 1690 | | William Langham | | | Sir Thomas Samwell, Bt. | |
| 1694 | | William Langham | | | Sir Justinian Isham, Bt. | |
| 1695 | | Christopher Montagu | | | Sir Justinian Isham, Bt. | |
| 1698 | | Christopher Montagu | | | William Thursby | |
| 1701 | | Christopher Montagu | | | Thomas Andrew | |
| 1702 | | Sir Matthew Dudley, Bt. | | | Bartholomew Tate | |
| 1704 | | Sir Matthew Dudley, Bt. | | | Francis Arundell | |
| 1705 | | George Montagu | | | Francis Arundell | |
| 1710 | | George Montagu | | | William Wykes | |
| 1715 | | William Wilmer | | | William Wykes | |
| 1722 | | William Wilmer | | | Edward Montagu | |
| 1727 | | Hon. George Compton | | | Edward Montagu | |
| 1734 | | Hon. George Compton | | | William Wilmer | |
| 1744 | | Hon. George Compton | | | George Montagu | |
| April 1754 | | Hon. George Compton | | | Charles Montagu | |
| December 1754 | | Hon. Charles Compton | | | Charles Montagu | |
| 1755 | | Richard Backwell | | | Charles Montagu | |
| 1759 | | Richard Backwell | | | Frederick Montagu | |
| 1761 | | Spencer Compton | | | Frederick Montagu | |
| 1763 | | Lucy Knightley | | | Frederick Montagu | |
| 1768 | | Vice-Admiral Sir George Brydges Rodney | | | Sir George Osborn, Bt. | |
| 1769 | | Vice-Admiral Sir George Brydges Rodney | | | Hon. Thomas Howe | |
| 1771 | | Vice-Admiral Sir George Brydges Rodney | | | Wilbraham Tollemache | |
| 1774 | | Sir George Robinson, 5th Bt. | | | Wilbraham Tollemache | |
| 1780 | | George Spencer | Whig | | George Rodney | |
| 1782 | | George Bingham | Tory | | George Rodney | |
| 1784 | | Charles Compton | Tory | | Fiennes Trotman | Whig |
| 1790 | | Charles Compton | Tory | | Hon. Edward Bouverie | Whig |
| 1796 | | Hon. Spencer Perceval | Tory | | Hon. Edward Bouverie | Whig |
| 1810 | | Hon. Spencer Perceval | Tory | | William Hanbury | Whig |
| 1812 | | Spencer Compton | Tory | | William Hanbury | Whig |
| 1818 | | Spencer Compton | Tory | | Sir Edward Kerrison, Bt. | Tory |
| 1820 | | Sir George Robinson, 6th Bt. | Whig | | William Leader Maberly | Whig |
| 1830 | | Sir George Robinson, 6th Bt. | Whig | | Sir Robert Gunning, Bt. | Tory |
| 1831 | | Sir George Robinson, 6th Bt. | Whig | | Robert Vernon Smith | Whig |
| 1832 | | Charles Ross | Tory | | Robert Vernon Smith | Whig |
| 1834 | | Charles Ross | Conservative | | Robert Vernon Smith | Whig |
| 1837 | | Raikes Currie | Radical | | Robert Vernon Smith | Whig |
| 1857 | | Charles Gilpin | Radical | | Robert Vernon Smith | Whig |
| 1859 | | Charles Gilpin | Liberal | | Robert Vernon Smith | Liberal |
| 1859 by-election | | Charles Gilpin | Liberal | | Anthony Henley | Liberal |
| February 1874 | | Charles Gilpin | Liberal | | Pickering Phipps | Conservative |
| October 1874 by-election | | Charles Merewether | Conservative | | Pickering Phipps | Conservative |
| 1880 | | Henry Labouchère | Liberal | | Charles Bradlaugh | Liberal |
| 1891 by-election | | Henry Labouchère | Liberal | | Philip Manfield | Liberal |
| 1895 | | Henry Labouchère | Liberal | | Adolphus Drucker | Conservative |
| 1900 | | Henry Labouchère | Liberal | | John Greenwood Shipman | Liberal |
| 1906 | | Herbert Paul | Liberal | | John Greenwood Shipman | Liberal |
| Jan. 1910 | | Hastings Lees-Smith | Liberal | | Charles McCurdy | Liberal |
| 1918 | Representation reduced to one member | Representation reduced to one member | Representation reduced to one member | Representation reduced to one member | Representation reduced to one member | Representation reduced to one member |

### MPs 1918–1974

| Election | Election | Member | Party |
| 1918 | | Charles McCurdy | Coalition Liberal |
| 1922 | | Charles McCurdy | National Liberal |
| 1923 | | Margaret Bondfield | Labour |
| 1924 | | Sir Arthur Holland | Conservative |
| 1928 by-election | | Cecil Malone | Labour |
| 1931 | | Sir Mervyn Manningham-Buller | Conservative |
| 1940 by-election | | Spencer Summers | Conservative |
| 1945 | | Reginald Paget | Labour |
| Feb 1974 | constituency abolished | constituency abolished | constituency abolished |

## Election results
### Elections in the 1830s

General election 1830: Northampton :
| Party | Party | Candidate | Votes | % | ±% |
| | Whig | Y George Robinson | 1,376 | 42.2 | |
| | Tory | Y Sir Robert Gunning, 3rd Baronet | 1,315 | 40.4 | |
| | Whig | Raikes Currie | 566 | 17.4 | |
| Turnout | Turnout | Turnout | 1,919 | c. 80.0 | |
| Registered electors | Registered electors | Registered electors | c. 2,400 | | |
| Majority | Majority | Majority | 61 | 1.8 | |
| | Whig hold | Whig hold | Swing | −0.2 | |
| Majority | Majority | Majority | 749 | 23.0 | N/A |
| | Tory gain from Whig | Tory gain from Whig | Swing | +8.8 | |
General election 1831: Northampton :
| Party | Party | Candidate | Votes | % | ±% |
| | Whig | Y George Robinson | 1,686 | 37.5 | −4.7 |
| | Whig | Y Robert Vernon Smith | 1,383 | 30.7 | +13.3 |
| | Tory | Sir Robert Gunning, 3rd Baronet | 1,241 | 27.6 | +7.4 |
| | Tory | James Lyon | 191 | 4.2 | −16.0 |
| Majority | Majority | Majority | 142 | 3.1 | N/A |
| Turnout | Turnout | Turnout | 2,404 | | |
| Registered electors | Registered electors | Registered electors | | | |
| | Whig hold | Whig hold | Swing | | |
| | Whig gain from Tory | Whig gain from Tory | Swing | | |
* After the election, a 13-day scrutiny was approved by the Mayor and tallies were revised to 1,570 for Robinson, 1,279 for Vernon Smith, 1,157 for Gunning, and 185 for Lyon. 188 votes were rejected.
General election 1832: Northampton :
| Party | Party | Candidate | Votes | % | ±% |
| | Whig | Y Robert Vernon Smith | 1,321 | 27.8 | −2.9 |
| | Tory | Y Charles Ross | 1,275 | 26.9 | −0.7 |
| | Whig | George Bainbridge | 1,191 | 25.1 | −12.4 |
| | Tory | Henry FitzRoy | 958 | 20.2 | +16.0 |
| Turnout | Turnout | Turnout | 2,406 | 96.4 | |
| Registered electors | Registered electors | Registered electors | 2,497 | | |
| Majority | Majority | Majority | 46 | 0.9 | −2.2 |
| | Whig hold | Whig hold | Swing | −5.3 | |
| Majority | Majority | Majority | 84 | 1.8 | N/A |
| | Tory gain from Whig | Tory gain from Whig | Swing | −3.5 | |
General election 1835: Northampton :
| Party | Party | Candidate | Votes | % | ±% |
| | Whig | Y Robert Vernon Smith | 1,119 | 35.2 | +7.4 |
| | Conservative | Y Charles Ross | 1,111 | 34.9 | −12.2 |
| | Whig | Charles Hill | 951 | 29.9 | +4.8 |
| Turnout | Turnout | Turnout | c. 1,591 | c. 73.0 | c. −23.4 |
| Registered electors | Registered electors | Registered electors | 2,178 | | |
| Majority | Majority | Majority | 8 | 0.3 | −0.6 |
| | Whig hold | Whig hold | Swing | +6.8 | |
| Majority | Majority | Majority | 160 | 5.0 | +3.2 |
| | Conservative hold | Conservative hold | Swing | −12.2 | |
General election 1837: Northampton :
| Party | Party | Candidate | Votes | % | ±% |
| | Whig | Y Robert Vernon Smith | 1,095 | 35.9 | −29.2 |
| | Radical | Y Raikes Currie | 1,033 | 33.8 | N/A |
| | Conservative | Charles Ross | 925 | 30.3 | −4.6 |
| Turnout | Turnout | Turnout | 1,922 | 92.4 | c. +19.4 |
| Registered electors | Registered electors | Registered electors | 2,079 | | |
| Majority | Majority | Majority | 62 | 2.1 | +1.8 |
| | Whig hold | Whig hold | Swing | −13.5 | |
| Majority | Majority | Majority | 108 | 3.5 | N/A |
| | Radical gain from Conservative | Radical gain from Conservative | Swing | | |

### Elections in the 1840s

General election 1841: Northampton :
| Party | Party | Candidate | Votes | % | ±% |
| | Whig | Y Robert Vernon | 990 | 32.6 | −3.3 |
| | Radical | Y Raikes Currie | 970 | 32.0 | −1.8 |
| | Conservative | Henry Willoughby | 897 | 29.6 | −0.7 |
| | Chartist | Peter Murray McDouall | 176 | 5.8 | New |
| Turnout | Turnout | Turnout | 1,517 (est) | 75.9 (est) | c. −16.5 |
| Registered electors | Registered electors | Registered electors | 1,997 | | |
| Majority | Majority | Majority | 20 | 0.6 | −1.5 |
| | Whig hold | Whig hold | Swing | −0.8 | |
| Majority | Majority | Majority | 73 | 2.4 | −1.1 |
| | Radical hold | Radical hold | Swing | +0.8 | |
General election 1847: Northampton :
| Party | Party | Candidate | Votes | % | ±% |
| | Radical | Y Raikes Currie | 897 | 28.6 | −3.4 |
| | Whig | Y Robert Vernon | 841 | 26.8 | −5.8 |
| | Conservative | Lebbeus Charles Humfrey | 652 | 20.8 | +6.0 |
| | Conservative | Augustus Frederick Bayford | 607 | 19.3 | +4.5 |
| | Chartist | John Epps | 141 | 4.5 | −1.3 |
| Turnout | Turnout | Turnout | 1,569 (est) | 84.0 (est) | +8.1 |
| Registered electors | Registered electors | Registered electors | 1,867 | | |
| Majority | Majority | Majority | 56 | 1.8 | −0.6 |
| | Radical hold | Radical hold | Swing | −4.3 | |
| Majority | Majority | Majority | 189 | 6.0 | +5.4 |
| | Whig hold | Whig hold | Swing | −5.5 | |

### Elections in the 1850s

Vernon Smith was appointed Secretary of State for War, requiring a by-election.
By-election, 11 February 1852: Northampton :
| Party | Party | Candidate | Votes | % | ±% |
| | Whig | Y Robert Vernon | 823 | 63.2 | +36.4 |
| | Conservative | Christopher Markham | 480 | 36.8 | +3.3 |
| Majority | Majority | Majority | 343 | 26.4 | +20.4 |
| Turnout | Turnout | Turnout | 1,303 | 57.6 | −26.4 |
| Registered electors | Registered electors | Registered electors | 2,263 | | |
| | Whig hold | Whig hold | Swing | +16.6 | |
General election 1852: Northampton :
| Party | Party | Candidate | Votes | % | ±% |
| | Whig | Y Robert Vernon | 855 | 33.8 | +7.0 |
| | Radical | Y Raikes Currie | 825 | 32.6 | +4.0 |
| | Conservative | George Ward Hunt | 745 | 29.4 | −10.7 |
| | Chartist | John Ingram Lockhart | 106 | 4.2 | −0.3 |
| Turnout | Turnout | Turnout | 1,585 (est) | 70.0 (est) | −14.0 |
| Registered electors | Registered electors | Registered electors | 2,263 | | |
| Majority | Majority | Majority | 30 | 1.2 | −4.8 |
| | Whig hold | Whig hold | Swing | +6.2 | |
| Majority | Majority | Majority | 80 | 3.2 | +1.4 |
| | Radical hold | Radical hold | Swing | +4.7 | |
Vernon Smith was appointed President of the Board of Control, requiring a by-election.
By-election, 5 March 1855: Northampton :
| Party | Party | Candidate | Votes | % | ±% |
| | Whig | Y Robert Vernon | Unopposed | Unopposed | Unopposed |
| | Whig hold | Whig hold | Whig hold | Whig hold | Whig hold |
General election 1857: Northampton :
| Party | Party | Candidate | Votes | % | ±% |
| | Whig | Y Robert Vernon | 1,079 | 37.1 | +3.3 |
| | Radical | Y Charles Gilpin | 1,011 | 34.8 | +2.2 |
| | Conservative | George Ward Hunt | 815 | 28.1 | −1.3 |
| Turnout | Turnout | Turnout | 1,860 (est) | 78.3 (est) | +8.3 |
| Registered electors | Registered electors | Registered electors | 2,375 | | |
| Majority | Majority | Majority | 68 | 2.3 | +1.1 |
| | Whig hold | Whig hold | Swing | +2.0 | |
| Majority | Majority | Majority | 196 | 6.7 | +3.5 |
| | Radical hold | Radical hold | Swing | +1.4 | |
General election 1859: Northampton :
| Party | Party | Candidate | Votes | % | ±% |
| | Liberal | Y Charles Gilpin | 1,151 | 36.5 | +1.7 |
| | Liberal | Y Robert Vernon | 1,143 | 36.3 | −0.8 |
| | Conservative | James Thomas Mackenzie | 832 | 26.4 | −1.7 |
| | Chartist | Richard Hart | 27 | 0.9 | New |
| Majority | Majority | Majority | 311 | 9.9 | +3.2 |
| Turnout | Turnout | Turnout | 1,979 (est) | 78.3 (est) | 0.0 |
| Registered electors | Registered electors | Registered electors | 2,526 | | |
| | Liberal hold | Liberal hold | Swing | +1.3 | |
| | Liberal hold | Liberal hold | Swing | 0.0 | |
Vernon Smith was raised to the peerage, becoming 1st Baron Lyveden, and causing a by-election.
By-election, 5 July 1859: Northampton :
| Party | Party | Candidate | Votes | % | ±% |
| | Liberal | Y Anthony Henley | Unopposed | Unopposed | Unopposed |
| | Liberal hold | Liberal hold | Liberal hold | Liberal hold | Liberal hold |

### Elections in the 1860s

General election 1865: Northampton :
| Party | Party | Candidate | Votes | % | ±% |
| | Liberal | Y Anthony Henley | 1,269 | 28.2 | −8.1 |
| | Liberal | Y Charles Gilpin | 1,250 | 27.8 | −8.7 |
| | Conservative | George Frederick Holroyd | 1,029 | 22.9 | +9.7 |
| | Conservative | Sackville Stopford | 950 | 21.1 | +7.9 |
| Majority | Majority | Majority | 221 | 4.9 | −5.0 |
| Turnout | Turnout | Turnout | 2,249 (est) | 85.8 (est) | +7.5 |
| Registered electors | Registered electors | Registered electors | 2,620 | | |
| | Liberal hold | Liberal hold | Swing | −8.5 | |
| | Liberal hold | Liberal hold | Swing | −8.8 | |
General election 1868: Northampton :
| Party | Party | Candidate | Votes | % | ±% |
| | Liberal | Y Charles Gilpin | 2,691 | 28.5 | +0.7 |
| | Liberal | Y Anthony Henley | 2,154 | 22.8 | −5.4 |
| | Conservative | Charles Merewether | 1,634 | 17.3 | −5.6 |
| | Conservative | William Edmonstone Lendrick | 1,396 | 14.8 | −6.3 |
| | Liberal | Charles Bradlaugh | 1,086 | 11.5 | N/A |
| | Liberal | Frederick Richard Lees | 492 | 5.2 | N/A |
| Majority | Majority | Majority | 520 | 5.5 | +0.6 |
| Turnout | Turnout | Turnout | 4,727 (est) | 71.4 (est) | −14.4 |
| Registered electors | Registered electors | Registered electors | 6,621 | | |
| | Liberal hold | Liberal hold | Swing | +3.3 | |
| | Liberal hold | Liberal hold | Swing | +0.2 | |

### Elections in the 1870s

General election 1874: Northampton :
| Party | Party | Candidate | Votes | % | ±% |
| | Conservative | Y Pickering Phipps | 2,690 | 25.3 | +10.5 |
| | Liberal | Y Charles Gilpin | 2,310 | 21.7 | −6.8 |
| | Conservative | Charles Merewether | 2,175 | 20.5 | +3.2 |
| | Liberal | Anthony Henley | 1,796 | 16.9 | −5.9 |
| | Liberal | Charles Bradlaugh | 1,653 | 15.6 | +4.1 |
| Turnout | Turnout | Turnout | 5,312 (est) | 77.8 (est) | +6.4 |
| Registered electors | Registered electors | Registered electors | 6,829 | | |
| Majority | Majority | Majority | 894 | 8.4 | N/A |
| | Conservative gain from Liberal | Conservative gain from Liberal | Swing | +6.7 | |
| Majority | Majority | Majority | 135 | 1.2 | −4.3 |
| | Liberal hold | Liberal hold | Swing | −6.8 | |
Gilpin's death caused a by-election.
By-election, 7 October 1874: Northampton :
| Party | Party | Candidate | Votes | % | ±% |
| | Conservative | Y Charles Merewether | 2,171 | 37.6 | −8.2 |
| | Liberal | William Fowler | 1,836 | 31.8 | +4.7 |
| | Liberal | Charles Bradlaugh | 1,766 | 30.6 | +3.5 |
| Majority | Majority | Majority | 335 | 5.8 | N/A |
| Turnout | Turnout | Turnout | 5,773 | 84.5 | +6.7 |
| Registered electors | Registered electors | Registered electors | 6,829 | | |
| | Conservative gain from Liberal | Conservative gain from Liberal | Swing | −4.5 | |

### Elections in the 1880s

General election 1880: Northampton :
| Party | Party | Candidate | Votes | % | ±% |
| | Liberal | Y Henry Labouchère | 4,158 | 29.8 | +2.7 |
| | Liberal | Y Charles Bradlaugh | 3,827 | 27.4 | +0.3 |
| | Conservative | Pickering Phipps | 3,152 | 22.6 | −2.7 |
| | Conservative | Charles Merewether | 2,826 | 20.2 | −0.3 |
| Majority | Majority | Majority | 675 | 4.8 | −3.6 |
| Turnout | Turnout | Turnout | 6,982 (est) | 85.3 (est) | +7.5 |
| Registered electors | Registered electors | Registered electors | 8,189 | | |
| | Liberal hold | Liberal hold | Swing | +1.5 | |
| | Liberal gain from Conservative | Liberal gain from Conservative | Swing | +1.5 | |
Bradlaugh was unseated after voting in the Commons before taking the Oath of Allegiance, causing a by-election.
By-election, 12 April 1881: Northampton :
| Party | Party | Candidate | Votes | % | ±% |
| | Liberal | Y Charles Bradlaugh | 3,437 | 51.0 | −6.2 |
| | Conservative | Edward Corbett | 3,305 | 49.0 | +6.2 |
| Majority | Majority | Majority | 132 | 2.0 | −2.8 |
| Turnout | Turnout | Turnout | 6,742 | 82.4 | −2.9 (est) |
| Registered electors | Registered electors | Registered electors | 8,185 | | |
| | Liberal hold | Liberal hold | Swing | −6.2 | |
Bradlaugh was expelled from the House of Commons due to his continuing prevention from taking the Oath, causing a by-election.
By-election, 4 March 1882: Northampton :
| Party | Party | Candidate | Votes | % | ±% |
| | Liberal | Y Charles Bradlaugh | 3,796 | 50.7 | −6.5 |
| | Conservative | Edward Corbett | 3,688 | 49.3 | +6.5 |
| Majority | Majority | Majority | 108 | 1.4 | −3.4 |
| Turnout | Turnout | Turnout | 7,484 | 89.5 | +4.2 (est) |
| Registered electors | Registered electors | Registered electors | 8,361 | | |
| | Liberal hold | Liberal hold | Swing | −6.5 | |
Bradlaugh resigned and sought election once more, after a resolution to exclude him from the precincts of the House of Commons was sought.
By-election, 21 February 1884: Northampton :
| Party | Party | Candidate | Votes | % | ±% |
| | Liberal | Y Charles Bradlaugh | 4,032 | 52.4 | −4.8 |
| | Conservative | Henry Charles Richards | 3,664 | 47.6 | +4.8 |
| Majority | Majority | Majority | 368 | 4.8 | 0.0 |
| Turnout | Turnout | Turnout | 7,696 | 86.6 | +1.3 (est) |
| Registered electors | Registered electors | Registered electors | 8,886 | | |
| | Liberal hold | Liberal hold | Swing | −4.8 | |
General election 1885: Northampton :
| Party | Party | Candidate | Votes | % | ±% |
| | Liberal | Y Henry Labouchère | 4,845 | 37.1 | +7.3 |
| | Liberal | Y Charles Bradlaugh | 4,315 | 33.1 | +5.7 |
| | Conservative | Henry Charles Richards | 3,890 | 29.8 | −13.0 |
| Majority | Majority | Majority | 425 | 3.3 | −1.5 |
| Turnout | Turnout | Turnout | 8,561 | 89.3 | +4.0 (est) |
| Registered electors | Registered electors | Registered electors | 9,582 | | |
| | Liberal hold | Liberal hold | Swing | +6.9 | |
| | Liberal hold | Liberal hold | Swing | +6.1 | |
General election 1886: Northampton :
| Party | Party | Candidate | Votes | % | ±% |
| | Liberal | Y Henry Labouchère | 4,570 | 28.2 | −8.9 |
| | Liberal | Y Charles Bradlaugh | 4,353 | 26.8 | −6.3 |
| | Liberal Unionist | Richard Turner | 3,850 | 23.7 | N/A |
| | Conservative | Thomas Orde Hastings Lees | 3,456 | 21.3 | −8.5 |
| Majority | Majority | Majority | 503 | 3.1 | −0.2 |
| Turnout | Turnout | Turnout | 8,343 | 87.1 | −2.2 |
| Registered electors | Registered electors | Registered electors | 9,582 | | |
| | Liberal hold | Liberal hold | Swing | −2.3 | |
| | Liberal hold | Liberal hold | Swing | −1.0 | |

### Elections in the 1890s

Bradlaugh's death caused a by-election.
By-election, 12 February 1891: Northampton :
| Party | Party | Candidate | Votes | % | ±% |
| | Liberal | Y Philip Manfield | 5,436 | 59.4 | +4.4 |
| | Conservative | Robert Arthur Germaine | 3,723 | 40.6 | −4.4 |
| Majority | Majority | Majority | 1,713 | 18.8 | +15.7 |
| Turnout | Turnout | Turnout | 9,159 | 84.1 | −3.0 |
| Registered electors | Registered electors | Registered electors | 10,895 | | |
| | Liberal hold | Liberal hold | Swing | +4.4 | |
General election 1892: Northampton :
| Party | Party | Candidate | Votes | % | ±% |
| | Liberal | Y Henry Labouchère | 5,439 | 31.1 | +2.9 |
| | Liberal | Y Philip Manfield | 5,164 | 29.5 | +2.7 |
| | Conservative | Henry Charles Richards | 3,651 | 20.9 | −2.8 |
| | Conservative | Adolphus Drucker | 3,235 | 18.5 | −2.8 |
| Majority | Majority | Majority | 1,513 | 8.6 | +5.5 |
| Turnout | Turnout | Turnout | 9,078 (est) | 81.2 | −5.9 |
| Registered electors | Registered electors | Registered electors | 11,180 | | |
| | Liberal hold | Liberal hold | Swing | +2.9 | |
| | Liberal hold | Liberal hold | Swing | +2.8 | |
General election 1895: Northampton :
| Party | Party | Candidate | Votes | % | ±% |
| | Liberal | Y Henry Labouchère | 4,884 | 27.0 | −4.1 |
| | Conservative | Y Adolphus Drucker | 3,820 | 21.0 | +2.5 |
| | Lib-Lab | Edward Harford | 3,703 | 20.4 | −9.1 |
| | Conservative | Jacob Jacobs | 3,394 | 18.7 | −2.2 |
| | Social Democratic Federation | Frederick George Jones | 1,216 | 6.7 | New |
| | Independent Liberal | J. M. Robertson | 1,131 | 6.2 | New |
| Turnout | Turnout | Turnout | 9,554 (est) | 83.5 | +2.3 |
| Registered electors | Registered electors | Registered electors | 11,442 | | |
| Majority | Majority | Majority | 1,490 | 8.3 | −0.3 |
| | Liberal hold | Liberal hold | Swing | −3.3 | |
| Majority | Majority | Majority | 117 | 0.6 | N/A |
| | Conservative gain from Liberal | Conservative gain from Liberal | Swing | +5.8 | |

### Elections in the 1900s

General election 1900: Northampton :
| Party | Party | Candidate | Votes | % | ±% |
| | Liberal | Y John Shipman | 5,437 | 28.2 | +7.8 |
| | Liberal | Y Henry Labouchère | 5,281 | 27.3 | +0.3 |
| | Conservative | Richard Rouse Boughton Orlebar | 4,480 | 23.2 | +2.2 |
| | Conservative | H E Randall | 4,124 | 21.3 | +2.6 |
| Turnout | Turnout | Turnout | 19,322 | 83.1 | −0.4 |
| Registered electors | Registered electors | Registered electors | 12,180 | | |
| Majority | Majority | Majority | 957 | 5.0 | N/A |
| | Liberal gain from Conservative | Liberal gain from Conservative | Swing | +2.8 | |
| | Liberal hold | Liberal hold | Swing | −1.0 | |
General election 1906: Northampton :
| Party | Party | Candidate | Votes | % | ±% |
| | Liberal | Y Herbert Paul | 4,479 | 20.7 | −6.6 |
| | Liberal | YJohn Shipman | 4,244 | 19.5 | −8.7 |
| | Conservative | Richard Rouse Boughton Orlebar | 4,078 | 18.8 | −4.4 |
| | Conservative | Frederic Gorell Barnes | 4,000 | 18.4 | −2.9 |
| | Social Democratic Federation | Jack Williams | 2,544 | 11.7 | New |
| | Social Democratic Federation | James Gribble | 2,366 | 10.9 | New |
| Turnout | Turnout | Turnout | 21,711 | 92.0 | +8.9 |
| Registered electors | Registered electors | Registered electors | 11,954 | | |
| Majority | Majority | Majority | 166 | 0.7 | −4.3 |
| | Liberal hold | Liberal hold | Swing | −1.1 | |
| | Liberal hold | Liberal hold | Swing | −2.2 | |

### Elections in the 1910s

General election January 1910: Northampton :
| Party | Party | Candidate | Votes | % | ±% |
| | Liberal | YHastings Lees-Smith | 5,398 | 23.3 | +2.6 |
| | Liberal | YCharles McCurdy | 5,289 | 22.9 | +3.4 |
| | Conservative | Richard Rouse Boughton Orlebar | 4,569 | 19.8 | +1.0 |
| | Conservative | Frederic Gorell Barnes | 4,464 | 19.3 | +0.9 |
| | Social Democratic Federation | James Gribble | 1,792 | 7.7 | −4.0 |
| | Social Democratic Federation | Harry Quelch | 1,617 | 7.0 | −3.9 |
| Majority | Majority | Majority | 720 | 3.1 | +2.4 |
| Turnout | Turnout | Turnout | 23,129 | 92.7 | +0.7 |
| | Liberal hold | Liberal hold | Liberal hold | Liberal hold | Liberal hold |
| | Liberal hold | Liberal hold | Liberal hold | Liberal hold | Liberal hold |
General election December 1910: Northampton :
| Party | Party | Candidate | Votes | % | ±% |
| | Liberal | YCharles McCurdy | 6,179 | 28.6 | +5.7 |
| | Liberal | YHastings Lees-Smith | 6,025 | 27.8 | +4.5 |
| | Conservative | F. C. Parker | 4,885 | 22.6 | +2.8 |
| | Conservative | J. V. Collier | 4,550 | 21.0 | +1.7 |
| Majority | Majority | Majority | 1,140 | 5.2 | +2.1 |
| Turnout | Turnout | Turnout | 21,639 | 87.7 | −5.0 |
| | Liberal hold | Liberal hold | Liberal hold | Liberal hold | Liberal hold |
| | Liberal hold | Liberal hold | Liberal hold | Liberal hold | Liberal hold |
A General Election was due to take place by the end of 1915. By the summer of 1914, the following candidates had been adopted to contest that election. Due to the outbreak of war, the election never took place.
* British Socialist Party: Ben Tillett
General election 1918: Northampton :
| Party | Party | Candidate | Votes | % | ±% |
| C | Liberal | Charles McCurdy | 18,010 | 62.7 | +16.5 |
| | Labour | Walter Halls | 10,735 | 37.3 | New |
| Majority | Majority | Majority | 7,275 | 25.4 | N/A |
| Turnout | Turnout | Turnout | 28,745 | 62.5 | −30.2 |
| Registered electors | Registered electors | Registered electors | 46,007 | | |
| | Liberal hold | Liberal hold | Swing | | |
| C indicates candidate endorsed by the coalition government. ||||||

### Elections in the 1920s

1920 Northampton by-election :
| Party | Party | Candidate | Votes | % | ±% |
| C | Liberal | Charles McCurdy | 16,650 | 55.6 | −7.1 |
| | Labour | Margaret Bondfield | 13,279 | 44.4 | +7.1 |
| Majority | Majority | Majority | 3,371 | 11.2 | −14.2 |
| Turnout | Turnout | Turnout | 29,929 | 67.1 | +4.6 |
| Registered electors | Registered electors | Registered electors | 44,573 | | |
| | Liberal hold | Liberal hold | Swing | −7.1 | |
| C indicates candidate endorsed by the coalition government. ||||||
General election 1922: Northampton :
| Party | Party | Candidate | Votes | % | ±% |
| | National Liberal | Charles McCurdy | 19,974 | 52.3 | −10.4 |
| | Labour | Margaret Bondfield | 14,498 | 37.9 | +0.6 |
| | Liberal | Henry Vivian | 3,753 | 9.8 | −52.9 |
| Majority | Majority | Majority | 5,476 | 14.4 | N/A |
| Turnout | Turnout | Turnout | 38,225 | 85.5 | +23.0 |
| Registered electors | Registered electors | Registered electors | 44,722 | | |
| | National Liberal gain from Liberal | National Liberal gain from Liberal | Swing | | |
General election 1923: Northampton :
| Party | Party | Candidate | Votes | % | ±% |
| | Labour | Margaret Bondfield | 15,556 | 40.5 | +2.6 |
| | Unionist | John Veasy Collier | 11,520 | 30.0 | New |
| | Liberal | Charles McCurdy | 11,342 | 29.5 | +19.7 |
| Majority | Majority | Majority | 4,036 | 10.5 | N/A |
| Turnout | Turnout | Turnout | 38,418 | 84.3 | −1.2 |
| Registered electors | Registered electors | Registered electors | 45,599 | | |
| | Labour gain from National Liberal | Labour gain from National Liberal | Swing | | |
General election 1924: Northampton :
| Party | Party | Candidate | Votes | % | ±% |
| | Unionist | Arthur Holland | 16,017 | 39.5 | +9.5 |
| | Labour | Margaret Bondfield | 15,046 | 37.2 | −3.3 |
| | Liberal | James Manfield | 9,436 | 23.3 | −6.2 |
| Majority | Majority | Majority | 971 | 2.3 | N/A |
| Turnout | Turnout | Turnout | 40,499 | 87.0 | +2.7 |
| Registered electors | Registered electors | Registered electors | 46,543 | | |
| | Unionist gain from Labour | Unionist gain from Labour | Swing | +6.4 | |
1928 Northampton by-election :
| Party | Party | Candidate | Votes | % | ±% |
| | Labour | Cecil Malone | 15,173 | 37.5 | +0.3 |
| | Unionist | Alexander Renton | 14,616 | 36.1 | −3.4 |
| | Liberal | Sydney Morgan | 9,584 | 23.7 | +0.4 |
| | Ind. Unionist | E.A. Hailwood | 1,093 | 2.7 | New |
| Majority | Majority | Majority | 557 | 1.4 | N/A |
| Turnout | Turnout | Turnout | 40,466 | 84.2 | −2.8 |
| Registered electors | Registered electors | Registered electors | 48,048 | | |
| | Labour gain from Unionist | Labour gain from Unionist | Swing | +1.9 | |
General election 1929: Northampton :
| Party | Party | Candidate | Votes | % | ±% |
| | Labour | Cecil Malone | 22,356 | 41.7 | +4.5 |
| | Unionist | Alexander Renton | 20,177 | 37.7 | −1.8 |
| | Liberal | Helen Schilizzi | 11,054 | 20.6 | −2.7 |
| Majority | Majority | Majority | 2,179 | 4.0 | N/A |
| Turnout | Turnout | Turnout | 53,587 | 87.5 | +0.5 |
| Registered electors | Registered electors | Registered electors | 61,222 | | |
| | Labour gain from Conservative | Labour gain from Conservative | Swing | +3.2 | |

### Elections in the 1930s

General election 1931: Northampton :
| Party | Party | Candidate | Votes | % | ±% |
| | Conservative | Mervyn Manningham-Buller | 34,817 | 63.6 | +25.9 |
| | Labour | Cecil Malone | 19,898 | 36.4 | −5.3 |
| Majority | Majority | Majority | 14,919 | 27.2 | N/A |
| Turnout | Turnout | Turnout | 54,715 | 87.4 | −0.1 |
| | Conservative gain from Labour | Conservative gain from Labour | Swing | | |
General election 1935: Northampton :
| Party | Party | Candidate | Votes | % | ±% |
| | Conservative | Mervyn Manningham-Buller | 25,438 | 51.5 | −12.1 |
| | Labour | Reginald Paget | 23,983 | 48.5 | +12.1 |
| Majority | Majority | Majority | 1,455 | 3.0 | −24.2 |
| Turnout | Turnout | Turnout | 49,421 | 79.6 | −7.8 |
| | Conservative hold | Conservative hold | Swing | | |
General Election 1939–40
Another General Election was required to take place before the end of 1940. The political parties had been making preparations for an election to take place and by the Autumn of 1939, the following candidates had been selected;
* Conservative:
* Labour: Reginald Paget
* British Union: Norah Elam

### Elections in the 1940s

1940 Northampton by-election :
| Party | Party | Candidate | Votes | % | ±% |
| | Conservative | Spencer Summers | 16,587 | 93.4 | +41.9 |
| | Christian Pacifist | William Stanley Seamark | 1,167 | 6.6 | New |
| Majority | Majority | Majority | 15,420 | 86.8 | +83.8 |
| Turnout | Turnout | Turnout | 17,754 | 30.0 | −49.6 |
| | Conservative hold | Conservative hold | Swing | | |
General election 1945: Northampton :
| Party | Party | Candidate | Votes | % | ±% |
| | Labour | Reginald Paget | 27,681 | 56.36 | +7.86 |
| | Conservative | Spencer Summers | 20,684 | 42.11 | −9.39 |
| | Independent Labour | James Edward Bugby | 749 | 1.53 | New |
| Majority | Majority | Majority | 6,997 | 14.25 | N/A |
| Turnout | Turnout | Turnout | 49,114 | 75.52 | −4.08 |
| Registered electors | Registered electors | Registered electors | 65,038 | | |
| | Labour gain from Conservative | Labour gain from Conservative | Swing | +8.63 | |

### Elections in the 1950s

General election 1950: Northampton :
| Party | Party | Candidate | Votes | % | ±% |
| | Labour | Reginald Paget | 31,946 | 48.98 | −7.38 |
| | Conservative | R.L. Agnew | 24,664 | 37.81 | −4.30 |
| | Liberal | Sydney Husbands Alloway | 8,619 | 13.21 | New |
| Majority | Majority | Majority | 7,282 | 11.17 | −3.08 |
| Turnout | Turnout | Turnout | 65,229 | 87.55 | +12.03 |
| Registered electors | Registered electors | Registered electors | 74,502 | | |
| | Labour hold | Labour hold | Swing | −1.54 | |
General election 1951: Northampton :
| Party | Party | Candidate | Votes | % | ±% |
| | Labour | Reginald Paget | 35,038 | 53.67 | +4.69 |
| | Conservative | John Veasey Collier | 30,244 | 46.33 | +8.52 |
| Majority | Majority | Majority | 4,794 | 7.34 | −3.83 |
| Turnout | Turnout | Turnout | 65,282 | 86.41 | −1.14 |
| Registered electors | Registered electors | Registered electors | 75,551 | | |
| | Labour hold | Labour hold | Swing | −1.92 | |
General election 1955: Northampton :
| Party | Party | Candidate | Votes | % | ±% |
| | Labour | Reginald Paget | 32,119 | 52.75 | −0.92 |
| | Conservative | William Clark | 28,771 | 47.25 | +0.92 |
| Majority | Majority | Majority | 3,348 | 5.50 | −1.84 |
| Turnout | Turnout | Turnout | 60,890 | 82.60 | −3.81 |
| Registered electors | Registered electors | Registered electors | 73,713 | | |
| | Labour hold | Labour hold | Swing | −0.92 | |
General election 1959: Northampton :
| Party | Party | Candidate | Votes | % | ±% |
| | Labour | Reginald Paget | 27,823 | 46.30 | −6.45 |
| | Conservative | Jill Knight | 25,106 | 41.77 | −5.48 |
| | Liberal | Anthony Smith | 7,170 | 11.93 | New |
| Majority | Majority | Majority | 2,717 | 4.53 | −0.97 |
| Turnout | Turnout | Turnout | 60,099 | 82.87 | +0.27 |
| Registered electors | Registered electors | Registered electors | 72,521 | | |
| | Labour hold | Labour hold | Swing | −0.49 | |

### Elections in the 1960s

General election 1964: Northampton :
| Party | Party | Candidate | Votes | % | ±% |
| | Labour | Reginald Paget | 28,568 | 49.04 | +2.74 |
| | Conservative | Jill Knight | 24,128 | 41.42 | −0.35 |
| | Liberal | Irene Watson | 5,557 | 9.54 | −2.39 |
| Majority | Majority | Majority | 4,440 | 7.62 | +3.09 |
| Turnout | Turnout | Turnout | 58,253 | 79.66 | −3.21 |
| Registered electors | Registered electors | Registered electors | 73,129 | | |
| | Labour hold | Labour hold | Swing | +1.55 | |
General election 1966: Northampton :
| Party | Party | Candidate | Votes | % | ±% |
| | Labour | Reginald Paget | 31,541 | 56.74 | +7.70 |
| | Conservative | Oliver Wright | 24,052 | 43.26 | +1.84 |
| Majority | Majority | Majority | 7,489 | 13.48 | +5.86 |
| Turnout | Turnout | Turnout | 55,593 | 76.38 | −3.28 |
| Registered electors | Registered electors | Registered electors | 72,781 | | |
| | Labour hold | Labour hold | Swing | +2.93 | |

### Elections in the 1970s

General election 1970: Northampton :
| Party | Party | Candidate | Votes | % | ±% |
| | Labour | Reginald Paget | 27,424 | 51.16 | −5.58 |
| | Conservative | Cecil Parkinson | 26,183 | 48.84 | +5.58 |
| Majority | Majority | Majority | 1,241 | 2.32 | −11.16 |
| Turnout | Turnout | Turnout | 53,607 | 71.87 | −4.51 |
| Registered electors | Registered electors | Registered electors | 74.590 | | |
| | Labour hold | Labour hold | Swing | −5.58 | |