# Social Democratic and Labour Party election results

This article lists the Social Democratic and Labour Party's election results in UK parliamentary elections.

## Summary of general election performance

| Year | Number of Candidates | Total votes | Average votes per candidate | % UK vote | % NI vote | Change (percentage points) | Saved deposits | Number of MPs (out of NI total) |
| 1974 Feb | 12 | 160,137 | 13,345 | 0.5 | 22.4 | N/A | 8 | 1 / 12 |
| 1974 Oct | 9 | 154,193 | 17,133 | 0.6 | 22.0 | +0.1 | 8 | 1 / 12 |
| 1979 | 9 | 126,325 | 14,036 | 0.4 | 19.7 | -0.2 | 6 | 1 / 12 |
| 1983 | 17 | 137,012 | 8,060 | 0.4 | 18.1 | 0.0 | 10 | 1 / 17 |
| 1987 | 13 | 154,067 | 11,851 | 0.5 | 21.1 | +0.1 | 13 | 3 / 17 |
| 1992 | 13 | 184,445 | 14,118 | 0.5 | 23.5 | 0.0 | 13 | 4 / 17 |
| 1997 | 18 | 190,814 | 10,601 | 0.6 | 24.1 | +0.1 | 15 | 3 / 18 |
| 2001 | 18 | 169,865 | 9,437 | 0.6 | 21.0 | 0.0 | 16 | 3 / 18 |
| 2005 | 18 | 125,626 | 6,979 | 0.5 | 17.5 | -0.1 | 16 | 3 / 18 |
| 2010 | 18 | 110,970 | 6,165 | 0.4 | 16.5 | -0.1 | 16 | 3 / 18 |
| 2015 | 18 | 99,809 | 5,545 | 0.3 | 13.9 | -0.1 | 15 | 3 / 18 |
| 2017 | 18 | 95,419 | 5,301 | 0.3 | 11.7 | -0.1 | 13 | 0 / 18 |
| 2019 | 15 | 118,737 | 7,916 | 0.3 | 14.9 | 0.0 | 13 | 2 / 18 |
| 2024 | 18 | 86,861 | 4,826 | 0.3 | 11.1 | 0.0 | 8 | 2 / 18 |

## February 1974 general election

| Constituency | Candidate | Votes | % | Position |
| Armagh | Paddy O'Hanlon | 18,090 | 29.3 | 2 |
| Belfast East | Desmond Gillespie | 1,502 | 2.6 | 4 |
| Belfast North | Thomas Donnelly | 12,003 | 24.4 | 3 |
| Belfast South | Ben Caraher | 4,149 | 8.0 | 4 |
| Belfast West | Gerry Fitt | 19,554 | 41.0 | 1 |
| Fermanagh and South Tyrone | Denis Haughey | 15,410 | 25.0 | 3 |
| Londonderry | Hugh Logue | 23,670 | 37.7 | 2 |
| Mid Ulster | Ivan Cooper | 19,372 | 29.1 | 2 |
| North Antrim | Mary McAlister | 10,056 | 15.5 | 3 |
| North Down | Dermot Curran | 2,376 | 3.8 | 3 |
| South Antrim | Patrick Rowan | 8,769 | 12.3 | 3 |
| South Down | Sean Hollywood | 25,486 | 42.8 | 2 |

## October 1974 general election

| Constituency | Candidate | Votes | % | Position |
| Armagh | Seamus Mallon | 19,855 | 31.8 | 2 |
| Belfast North | Thomas Donnelly | 11,400 | 24.1 | 2 |
| Belfast South | Ben Caraher | 2,390 | 4.7 | 4 |
| Belfast West | Gerry Fitt | 21,821 | 49.0 | 1 |
| Londonderry | John Hume | 26,118 | 40.4 | 2 |
| Mid Ulster | Ivan Cooper | 25,885 | 40.1 | 2 |
| North Antrim | Mary McAlister | 7,616 | 12.8 | 3 |
| South Antrim | Patrick Rowan | 9,061 | 13.2 | 3 |
| South Down | Sean Hollywood | 30,047 | 45.4 | 2 |

## 1979 general election

| Constituency | Candidate | Votes | % | Position |
| Armagh | Seamus Mallon | 23,545 | 36.1 | 2 |
| Belfast North | Paschal O'Hare | 7,823 | 18.5 | 3 |
| Belfast South | Alasdair McDonnell | 3,694 | 7.9 | 3 |
| Belfast West | Gerry Fitt | 16,480 | 49.5 | 1 |
| Londonderry | Hugh Logue | 19,185 | 30.2 | 2 |
| Mid Ulster | Paddy Duffy | 19,266 | 29.4 | 2 |
| North Antrim | Sean Farren | 4,867 | 7.4 | 4 |
| South Antrim | Patrick Rowan | 7,432 | 10.1 | 3 |
| South Down | Eddie McGrady | 24,033 | 37.3 | 2 |

## By-elections, 1979–1983

| Election | Candidate | Votes | % | Position |
| 1982 Belfast South by-election | Alasdair McDonnell | 3,839 | 8.8 | 4 |

## 1983 general election

| Constituency | Candidate | Votes | % | Position |
| Belfast East | Peter Prendiville | 519 | 1.3 | 6 |
| Belfast North | Brian Feeney | 5,944 | 14.0 | 3 |
| Belfast South | Alasdair McDonnell | 3,216 | 8.6 | 4 |
| Belfast West | Joe Hendron | 10,934 | 24.6 | 2 |
| East Antrim | Michael O'Cleary | 1,047 | 2.7 | 4 |
| East Londonderry | Arthur Doherty | 9,397 | 18.3 | 3 |
| Fermanagh and South Tyrone | Rosemary Flanagan | 9,923 | 16.5 | 3 |
| Foyle | John Hume | 24,071 | 46.0 | 1 |
| Lagan Valley | Cormac Boomer | 2,603 | 6.4 | 4 |
| Mid Ulster | Denis Haughey | 12,044 | 22.4 | 3 |
| Newry and Armagh | Seamus Mallon | 17,434 | 36.8 | 2 |
| North Antrim | Sean Farren | 6,193 | 14.0 | 3 |
| North Down | Cathal O'Baioll | 645 | 1.6 | 4 |
| South Antrim | Alban Maginness | 3,377 | 8.7 | 4 |
| South Down | Eddie McGrady | 20,145 | 39.3 | 2 |
| Strangford | James Curry | 1,713 | 4.4 | 4 |
| Upper Bann | James McDonald | 7,807 | 17.9 | 2 |

## By-elections, 1983–1987

| Election | Candidate | Votes | % | Position |
| 1986 Fermanagh and South Tyrone by-election | Austin Currie | 12,081 | 21.5 | 3 |
| 1986 Mid Ulster by-election | Adrian Colton | 13,021 | 25.3 | 3 |
| 1986 Newry and Armagh by-election | Seamus Mallon | 22,694 | 45.5 | 1 |
| 1986 South Down by-election | Eddie McGrady | 23,121 | 44.8 | 2 |

## 1987 general election

| Constituency | Candidate | Votes | % | Position |
| Belfast North | Alban Maginness | 5,795 | 15.7 | 2 |
| Belfast South | Alasdair McDonnell | 4,268 | 13.1 | 3 |
| Belfast West | Joe Hendron | 14,641 | 35.7 | 2 |
| East Londonderry | Arthur Doherty | 9,375 | 19.2 | 2 |
| Fermanagh and South Tyrone | Rosemary Flanagan | 10,581 | 19.1 | 3 |
| Foyle | John Hume | 23,743 | 48.8 | 1 |
| Lagan Valley | Billy McDonnell | 2,888 | 6.9 | 3 |
| Mid Ulster | Denis Haughey | 13,644 | 26.2 | 2 |
| Newry and Armagh | Seamus Mallon | 25,137 | 48.1 | 1 |
| North Antrim | Sean Farren | 5,149 | 12.5 | 2 |
| South Antrim | Donovan McClelland | 3,611 | 9.9 | 3 |
| South Down | Eddie McGrady | 26,579 | 47.0 | 1 |
| Upper Bann | Bríd Rodgers | 8,676 | 20.5 | 2 |

## By-elections, 1987–1992

| Election | Candidate | Votes | % | Position |
| 1990 Upper Bann by-election | Bríd Rodgers | 6,698 | 18.9 | 2 |

## 1992 general election

| Constituency | Candidate | Votes | % | Position |
| Belfast North | Alban Maginness | 7,615 | 21.2 | 2 |
| Belfast South | Alasdair McDonnell | 6,266 | 18.7 | 2 |
| Belfast West | Joe Hendron | 17,415 | 43.6 | 1 |
| East Londonderry | Arthur Doherty | 11,843 | 22.4 | 2 |
| Fermanagh and South Tyrone | Tommy Gallagher | 12,810 | 23.2 | 2 |
| Foyle | John Hume | 26,710 | 51.5 | 1 |
| Mid Ulster | Denis Haughey | 16,994 | 31.0 | 2 |
| Newry and Armagh | Seamus Mallon | 26,073 | 49.6 | 1 |
| North Antrim | Sean Farren | 6,512 | 14.3 | 3 |
| South Antrim | Donovan McClelland | 5,397 | 12.8 | 2 |
| South Down | Eddie McGrady | 31,523 | 51.2 | 1 |
| Upper Bann | Bríd Rodgers | 10,661 | 23.4 | 2 |

## 1997 general election

| Constituency | Candidate | Votes | % | Position |
| Belfast East | Patricia Lewsley | 629 | 1.6 | 6 |
| Belfast North | Alban Maginness | 8,454 | 20.4 | 2 |
| Belfast South | Alasdair McDonnell | 9,601 | 24.3 | 2 |
| Belfast West | Joe Hendron | 17,753 | 38.7 | 2 |
| East Antrim | Danny O'Connor | 1,576 | 4.6 | 6 |
| East Londonderry | Arthur Doherty | 8,273 | 22.0 | 3 |
| Fermanagh and South Tyrone | Tommy Gallagher | 11,060 | 22.9 | 3 |
| Foyle | John Hume | 25,109 | 52.5 | 1 |
| Lagan Valley | Dolores Kelly | 3,436 | 7.8 | 4 |
| Mid Ulster | Denis Haughey | 11,205 | 22.1 | 3 |
| Newry and Armagh | Seamus Mallon | 22,904 | 43.0 | 1 |
| North Antrim | Sean Farren | 7,333 | 15.9 | 3 |
| North Down | Marietta Farrell | 1,602 | 4.4 | 5 |
| South Antrim | Donovan McClelland | 6,497 | 16.2 | 2 |
| South Down | Eddie McGrady | 26,181 | 52.9 | 1 |
| Strangford | Peter O'Reilly | 2,775 | 6.7 | 4 |
| Upper Bann | Bríd Rodgers | 11,584 | 24.2 | 2 |
| West Tyrone | Joe Byrne | 14,842 | 32.1 | 2 |

## By-elections, 1997–2001

| Election | Candidate | Votes | % | Position |
| 2000 South Antrim by-election | Donovan McClelland | 3,496 | 11.4 | 3 |

## 2001 general election

| Constituency | Candidate | Votes | % | Position |
| Belfast East | Ciara Farren | 880 | 2.4 | 6 |
| Belfast North | Alban Maginness | 8,592 | 21.0 | 3 |
| Belfast South | Alasdair McDonnell | 11,609 | 30.6 | 2 |
| Belfast West | Alex Attwood | 7,754 | 18.9 | 2 |
| East Antrim | Danny O'Connor | 2,641 | 7.3 | 4 |
| East Londonderry | John Dallat | 8,298 | 20.8 | 3 |
| Fermanagh and South Tyrone | Tommy Gallagher | 9,706 | 18.7 | 3 |
| Foyle | John Hume | 24,538 | 50.2 | 1 |
| Lagan Valley | Patricia Lewsley | 3,462 | 7.5 | 4 |
| Mid Ulster | Eilish Haughey | 8,376 | 16.8 | 3 |
| Newry and Armagh | Seamus Mallon | 20,784 | 37.4 | 1 |
| North Antrim | Sean Farren | 8,283 | 16.8 | 3 |
| North Down | Marietta Farrell | 1,275 | 3.4 | 3 |
| South Antrim | Sean McKee | 5,336 | 12.1 | 3 |
| South Down | Eddie McGrady | 24,136 | 46.3 | 1 |
| Strangford | Danny McCarthy | 2,646 | 6.1 | 4 |
| Upper Bann | Dolores Kelly | 7,607 | 14.9 | 4 |
| West Tyrone | Bríd Rodgers | 13,942 | 28.7 | 3 |

## 2005 general election

| Constituency | Candidate | Votes | % | Position |
| Belfast East | Mary Muldoon | 844 | 2.7 | 5 |
| Belfast North | Alban Maginness | 4,950 | 16.2 | 3 |
| Belfast South | Alasdair McDonnell | 10,339 | 32.3 | 1 |
| Belfast West | Alex Attwood | 5,033 | 14.6 | 2 |
| East Antrim | Danny O'Connor | 1,695 | 5.3 | 4 |
| East Londonderry | John Dallat | 6,077 | 17.1 | 3 |
| Fermanagh and South Tyrone | Tommy Gallagher | 7,230 | 14.8 | 4 |
| Foyle | Mark Durkan | 21,119 | 46.3 | 1 |
| Lagan Valley | Patricia Lewsley | 2,598 | 6.1 | 5 |
| Mid Ulster | Patsy McGlone | 7,922 | 17.4 | 3 |
| Newry and Armagh | Dominic Bradley | 12,770 | 25.2 | 2 |
| North Antrim | Sean Farren | 5,585 | 12.2 | 3 |
| North Down | Liam Logan | 1,009 | 3.1 | 4 |
| South Antrim | Noreen McClelland | 4,706 | 12.4 | 3 |
| South Down | Eddie McGrady | 21,557 | 44.7 | 1 |
| Strangford | Joe Boyle | 2,496 | 6.7 | 4 |
| Upper Bann | Dolores Kelly | 5,747 | 13.0 | 4 |
| West Tyrone | Eugene McMenamin | 3,949 | 9.1 | 4 |

## 2010 general election

| Constituency | Candidate | Votes | % | Position |
| Belfast East | Mary Muldoon | 365 | 1.1 | 6 |
| Belfast North | Alban Maginness | 4,544 | 12.3 | 3 |
| Belfast South | Alasdair McDonnell | 14,026 | 41.0 | 1 |
| Belfast West | Alex Attwood | 5,261 | 16.4 | 2 |
| East Antrim | Justin McCamphill | 2,019 | 6.6 | 5 |
| East Londonderry | Thomas Conway | 5,399 | 15.4 | 4 |
| Fermanagh and South Tyrone | Fearghal McKinney | 3,574 | 7.6 | 3 |
| Foyle | Mark Durkan | 16,922 | 44.7 | 1 |
| Lagan Valley | Brian Heading | 1,835 | 5.0 | 5 |
| Mid Ulster | Tony Quinn | 5,826 | 14.3 | 3 |
| Newry and Armagh | Dominic Bradley | 10,526 | 23.4 | 2 |
| North Antrim | Declan O'Loan | 3,738 | 8.8 | 5 |
| North Down | Liam Logan | 680 | 2.0 | 6 |
| South Antrim | Michelle Byrne | 2,955 | 8.7 | 4 |
| South Down | Margaret Ritchie | 20,648 | 48.5 | 1 |
| Strangford | Claire Hanna | 2,164 | 6.7 | 4 |
| Upper Bann | Dolores Kelly | 5,276 | 12.8 | 4 |
| West Tyrone | Joe Byrne | 5,212 | 14.0 | 4 |

## By-elections, 2010–2015

| Election | Candidate | Votes | % | Position |
| 2011 Belfast West by-election | Alex Attwood | 3,088 | 13.5 | 2 |
| 2013 Mid Ulster by-election | Patsy McGlone | 6,478 | 17.4 | 3 |

## 2015 general election

| Constituency | Candidate | Votes | % | Position |
| Belfast East | Mary Muldoon | 127 | 0.3 | 6 |
| Belfast North | Alban Maginness | 3,338 | 8.2 | 3 |
| Belfast South | Alasdair McDonnell | 9,560 | 24.5 | 1 |
| Belfast West | Alex Attwood | 3,475 | 9.8 | 3 |
| East Antrim | Margaret McKillop | 1,639 | 4.9 | 7 |
| East Londonderry | Gerry Mullan | 4,268 | 12.3 | 4 |
| Fermanagh and South Tyrone | John Coyle | 2,732 | 5.4 | 3 |
| Foyle | Mark Durkan | 17,725 | 47.9 | 1 |
| Lagan Valley | Pat Catney | 2,500 | 6.3 | 4 |
| Mid Ulster | Malachy Quinn | 5,055 | 12.4 | 4 |
| Newry and Armagh | Justin McNulty | 12,026 | 24.1 | 3 |
| North Antrim | Declan O'Loan | 2,920 | 7.0 | 5 |
| North Down | Tom Woolley | 355 | 1.0 | 8 |
| South Antrim | Roisin Lynch | 2,990 | 8.2 | 5 |
| South Down | Margaret Ritchie | 18,077 | 42.3 | 1 |
| Strangford | Joe Boyle | 2,335 | 6.9 | 4 |
| Upper Bann | Dolores Kelly | 4,238 | 9.0 | 4 |
| West Tyrone | Daniel McCrossan | 6,444 | 16.7 | 3 |

## 2017 general election

| Constituency | Candidate | Votes | % | Position |
| Belfast East | Séamas de Faoite | 167 | 0.4 | 7 |
| Belfast North | Martin McAuley | 2,058 | 4.5 | 4 |
| Belfast South | Alasdair McDonnell | 11,303 | 25.9 | 2 |
| Belfast West | Tim Attwood | 2,860 | 7.0 | 4 |
| East Antrim | Margaret McKillop | 1,278 | 3.4 | 5 |
| East Londonderry | Stephanie Quigley | 4,423 | 10.8 | 3 |
| Fermanagh and South Tyrone | Mary Garrity | 2,587 | 4.8 | 3 |
| Foyle | Mark Durkan | 18,087 | 39.3 | 2 |
| Lagan Valley | Pat Catney | 3,384 | 7.5 | 4 |
| Mid Ulster | Malachy Quinn | 4,563 | 9.8 | 3 |
| Newry and Armagh | Justin McNulty | 9,055 | 16.9 | 3 |
| North Antrim | Declan O'Loan | 2,574 | 5.3 | 6 |
| North Down | Caoímhe McNeill | 400 | 1.0 | 7 |
| South Antrim | Roisin Lynch | 2,362 | 5.5 | 5 |
| South Down | Margaret Ritchie | 17,882 | 35.1 | 2 |
| Strangford | Joe Boyle | 2,404 | 6.2 | 4 |
| Upper Bann | Declan McAlinden | 4,397 | 8.6 | 4 |
| West Tyrone | Daniel McCrossan | 5,635 | 13.0 | 3 |

## 2019 general election

The SDLP did not stand candidates in Belfast East, Belfast North or North Down in order to aid anti-Brexit and anti-Democratic Unionist Party candidates in those constituencies.
| Constituency | Candidate | Votes | % | Position |
| Belfast South | Claire Hanna | 27,079 | 57.2 | 1 |
| Belfast West | Paul Doherty | 2,985 | 7.7 | 4 |
| East Antrim | Angela Mulholland | 902 | 2.4 | 6 |
| East Londonderry | Cara Hunter | 6,158 | 15.7 | 2 |
| Fermanagh and South Tyrone | Adam Gannon | 3,446 | 6.8 | 3 |
| Foyle | Colum Eastwood | 26,881 | 57.0 | 1 |
| Lagan Valley | Ally Haydock | 1,758 | 3.9 | 4 |
| Mid Ulster | Denise Johnston | 6,384 | 14.3 | 3 |
| Newry and Armagh | Pete Byrne | 9,449 | 18.6 | 3 |
| North Antrim | Margaret McKillop | 2,943 | 6.7 | 5 |
| South Antrim | Roisin Lynch | 2,288 | 5.3 | 5 |
| South Down | Michael Savage | 14,517 | 29.2 | 2 |
| Strangford | Joe Boyle | 1,994 | 5.3 | 4 |
| Upper Bann | Dolores Kelly | 4,623 | 9.2 | 5 |
| West Tyrone | Daniel McCrossan | 7,330 | 17.8 | 3 |

## 2024 general election

| Constituency | Candidate | Votes | % | Position |
| Belfast East | Séamas de Faoite | 619 | 1.4 | 6 |
| Belfast North | Carl Whyte | 1,413 | 3.5 | 5 |
| Belfast South and Mid Down | Claire Hanna | 21,345 | 49.1 | 1 |
| Belfast West | Paul Doherty | 4,318 | 10.9 | 3 |
| East Antrim | Margaret McKillop | 892 | 2.2 | 6 |
| East Londonderry | Cara Hunter | 5,260 | 12.7 | 3 |
| Fermanagh and South Tyrone | Paul Blake | 2,386 | 4.7 | 4 |
| Foyle | Colum Eastwood | 15,647 | 40.8 | 1 |
| Lagan Valley | Simon Lee | 1,028 | 2.1 | 5 |
| Mid Ulster | Denise Johnston | 3,722 | 8.2 | 3 |
| Newry and Armagh | Pete Byrne | 6,806 | 14.8 | 2 |
| North Antrim | Helen Maher | 1,661 | 4.0 | 6 |
| North Down | Déirdre Vaughan | 657 | 1.5 | 5 |
| South Antrim | Roisin Lynch | 1,589 | 3.7 | 6 |
| South Down | Colin McGrath | 10,418 | 23.0 | 2 |
| Strangford | Will Polland | 1,783 | 4.6 | 6 |
| Upper Bann | Malachy Quinn | 1,496 | 3.2 | 5 |
| West Tyrone | Daniel McCrossan | 5,821 | 13.3 | 3 |