This article lists the Democratic Unionist 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 2 58,656 29,328 0.2 8.2 N/A 2 1974 Oct 2 59,451 29,766 0.3 8.5 +0.1 2 1979 5 70,795 14,159 0.5 10.2 +0.2 3 1983 14 152,749 10,911 0.5 20.0 0.0 10 1987 4 85,642 21,411 0.3 11.7 −0.2 4 1992 7 103,039 14,720 0.3 13.1 0.0 7 1997 9 107,348 11,928 0.3 13.6 0.0 9 2001 14 181,999 13,000 0.7 22.5 +0.4 14 2005 18 241,856 17,275 0.9 33.7 +0.2 18 2010 16 168,216 10,514 0.6 25.0 −0.3 16 2015 16 184,260 11,516 0.6 25.7 0.0 16 2017 17 292,316 17,195 0.9 36.0 +0.3 17 2019 17 244,128 14,360 0.8 30.6 -0.1 17

Election results 1970 general election The 1970 general election was contested by the DUP's forerunner, the Protestant Unionist Party.

Constituency Candidate Votes % PositionBelfast North 11,173 18.8 3North Antrim 24,130 41.2 1

February 1974 general election Constituency Candidate Votes % PositionBelfast West 17,374 36.5 2North Antrim 41,282 63.5 1

October 1974 general election Constituency Candidate Votes % PositionBelfast West 16,265 36.5 2North Antrim 43,186 72.6 1

1979 general election Constituency Candidate Votes % PositionBelfast East 15,994 31.4 1Belfast North 11,690 27.6 1Belfast West 3,716 11.2 3Londonderry 5,634 8.6 3North Antrim 33,941 51.7 1

By-elections, 1979–83 Election Candidate Votes % Position1982 Belfast South by-election9,81822.63

1983 general election Constituency Candidate Votes % PositionBelfast East 17,631 45.3 1Belfast North 8,260 19.5 2Belfast South 4,565 12.2 3Belfast West 2,399 5.4 5East Antrim 13,926 36.5 2East Londonderry 12,207 23.8 2Foyle 15,923 30.5 2Lagan Valley 6,801 16.8 2Mid Ulster 16,174 30.0 1North Antrim 23,922 54.2 1South Antrim 10,935 28.2 2South Down 3,743 7.3 4Strangford 11,716 30.0 2Upper Bann 4,547 10.4 3

By-elections, 1983–86 Election Candidate Votes % Position1986 Belfast East by-election27,60781.011986 Mid Ulster by-election23,69546.111986 North Antrim by-election33,93797.41

1987 general election Constituency Candidate Votes % PositionBelfast East 16,640 42.6 1Foyle 13,883 28.6 2Mid Ulster 23,004 44.2 1North Antrim 28,283 68.7 1

1992 general election Constituency Candidate Votes % PositionBelfast East 18,437 51.5 1East Antrim 9,544 24.3 2Foyle 13,705 26.4 2Mid Ulster 23,181 42.3 1North Antrim 23,152 50.9 1North Down 4,414 9.8 4Strangford 10,606 23.7 2

1997 general election Constituency Candidate Votes % PositionBelfast East 16,640 42.6 1East Antrim 6,682 19.5 3East Londonderry 9,767 26.0 2Foyle 10,290 21.5 3Lagan Valley 6,005 13.6 3Mid Ulster 18,411 36.3 2North Antrim 21,495 46.5 1Strangford 12,579 30.2 2Upper Bann 5,482 11.5 4

By-elections, 1997–2001 Election Candidate Votes % Position2000 South Antrim by-election 11,601 38.0 1

2001 general election Constituency Candidate Votes % PositionBelfast East 15,667 42.5 1Belfast North 16,718 40.8 1Belfast West 2,641 6.4 3East Antrim 12,973 36.0 2East Londonderry 12,813 32.1 1Foyle 7,414 15.2 3Lagan Valley 6,164 13.4 3Mid Ulster 15,549 31.1 2Newry and Armagh 10,795 19.4 3North Antrim 24,539 49.9 1South Antrim 15,355 34.8 2South Down 7,802 15.0 4Strangford 18,532 42.8 1Upper Bann 15,037 29.5 2

2005 general election Constituency Candidate Votes % PositionBelfast East 15,152 49.1 1Belfast North 13,935 45.6 1Belfast South 9,104 28.4 2Belfast West 3,652 10.6 3East Antrim 15,766 49.6 1East Londonderry 15,225 42.9 1Fermanagh and South Tyrone 14,056 28.8 2Foyle 6,557 14.1 3Lagan Valley 23,289 54.7 1Mid Ulster 10,665 23.5 2Newry and Armagh 9,311 18.4 3North Antrim 25,156 54.8 1North Down 11,324 35.1 2South Antrim 14,507 38.2 1South Down 8,815 18.3 3Strangford 20,921 56.5 1Upper Bann 16,679 37.6 1West Tyrone 7,742 17.8 3

2010 general election Constituency Candidate Votes % PositionBelfast East 11,306 32.8 2Belfast North 14,812 40.0 1Belfast South 8,100 23.7 2Belfast West 2,436 7.6 3East Antrim 13,993 45.9 1East Londonderry 12,097 34.6 1Foyle 4,489 11.8 3Lagan Valley 18,199 49.8 1Mid Ulster 5,876 14.4 2Newry and Armagh 5,764 12.8 4North Antrim 19,672 46.4 1South Antrim 11,536 33.9 1South Down 3,645 8.6 3Strangford 14,926 45.9 1Upper Bann 14,000 33.8 1West Tyrone 7,365 19.8 2

By-elections, 2010–15 Election Candidate Votes % Position2011 Belfast West by-election 1,393 6.1 4

2015 general election Constituency Candidate Votes % PositionBelfast East 19,575 49.3 1Belfast North 19,096 47.0 1Belfast South 8,654 22.2 2Belfast West 2,773 7.8 4East Antrim 12,103 36.1 1East Londonderry 14,663 42.2 1Foyle 4,573 12.4 3Lagan Valley 19,055 47.9 1Mid Ulster 5,465 13.4 3North Antrim 18,107 43.2 1North Down 8,487 23.6 2South Antrim 10,993 30.1 2South Down 3,486 8.2 4Strangford 15,053 44.4 1Upper Bann 15,430 32.7 1West Tyrone 6,747 17.5 2

2017 general election Constituency Candidate Votes % PositionBelfast East 23,917 55.8 1Belfast North 21,240 46.2 1Belfast South 13,299 30.4 1Belfast West 5,455 13.4 2East Antrim 21,873 57.3 1East Londonderry 19,273 48.1 1Foyle 7,398 16.1 3Lagan Valley 26,762 59.6 1Mid Ulster 12,565 26.9 2Newry and Armagh 13,177 24.6 2North Antrim 28,521 58.9 1North Down 14,940 38.0 2South Antrim 16,508 38.2 1South Down 8,867 17.4 3Strangford 24,036 62.0 1Upper Bann 22,317 43.5 1West Tyrone 11,718 26.9 2

By-elections, 2017–2019 By-election Candidate Votes % Position2018 West Tyrone by-election 8,390 23.9 2

2019 general election Constituency Candidate Votes % PositionBelfast East 20,874 49.2 1Belfast North 21,135 43.1 2Belfast South 11,678 24.7 2Belfast West 5,220 13.5 3East Antrim 16,781 45.3 1East Londonderry 15,765 40.1 1Foyle 4,773 10.1 3Lagan Valley 19,586 43.1 1Mid Ulster 10,936 24.5 2Newry and Armagh 11,000 21.7 2North Antrim 20,860 47.4 1North Down 15,390 37.9 2South Antrim 15,149 35.3 1South Down 7,619 15.3 3Strangford 17,705 47.2 1Upper Bann 20,501 41.0 1West Tyrone 9,066 22.0 2

References

F. W. S. Craig, Chronology of British Parliamentary By-elections 1833–1987 UK General election results February 1974, Richard Kimber's Political Resources UK General election results October 1974, Richard Kimber's Political Resources UK General election results May 1979, Richard Kimber's Political Resources