Boundary set for Northern Ireland (13 April 2010 - 30 May 2024) Vote shares of winning candidate

Constituency areas Establishing legislation General elections By-elections Majorities Vote shares of winning candidate Turnouts General election party performance

Constituency area	Election type	Polling date	Winning party	Vote share
Belfast East	General election	6 May 2010	APNI	37.2%
Belfast East	General election	7 May 2015	DUP	49.3%
Belfast East	General election	8 June 2017	DUP	55.8%
Belfast East	General election	12 December 2019	DUP	49.2%
Belfast North	General election	6 May 2010	DUP	40.0%
Belfast North	General election	7 May 2015	DUP	47.0%
Belfast North	General election	8 June 2017	DUP	46.2%
Belfast North	General election	12 December 2019	SF	47.1%
Belfast South	General election	6 May 2010	SDLP	41.0%
Belfast South	General election	7 May 2015	SDLP	24.5%
Belfast South	General election	8 June 2017	DUP	30.4%
Belfast South	General election	12 December 2019	SDLP	57.2%
Belfast West	General election	6 May 2010	SF	71.1%
Belfast West	General election	7 May 2015	SF	54.2%
Belfast West	General election	8 June 2017	SF	66.7%
Belfast West	General election	12 December 2019	SF	53.8%
East Antrim	General election	6 May 2010	DUP	45.9%
East Antrim	General election	7 May 2015	DUP	36.1%
East Antrim	General election	8 June 2017	DUP	57.3%
East Antrim	General election	12 December 2019	DUP	45.3%
East Londonderry	General election	6 May 2010	DUP	34.6%
East Londonderry	General election	7 May 2015	DUP	42.2%
East Londonderry	General election	8 June 2017	DUP	48.1%
East Londonderry	General election	12 December 2019	DUP	40.1%
Fermanagh and South Tyrone	General election	6 May 2010	SF	45.5%
Fermanagh and South Tyrone	General election	7 May 2015	UUP	46.4%
Fermanagh and South Tyrone	General election	8 June 2017	SF	47.2%
Fermanagh and South Tyrone	General election	12 December 2019	SF	43.3%
Foyle	General election	6 May 2010	SDLP	44.7%
Foyle	General election	7 May 2015	SDLP	47.9%
Foyle	General election	8 June 2017	SF	39.7%
Foyle	General election	12 December 2019	SDLP	57.0%
Lagan Valley	General election	6 May 2010	DUP	49.8%
Lagan Valley	General election	7 May 2015	DUP	47.9%
Lagan Valley	General election	8 June 2017	DUP	59.6%
Lagan Valley	General election	12 December 2019	DUP	43.1%
Mid Ulster	General election	6 May 2010	SF	52.0%
Mid Ulster	General election	7 May 2015	SF	48.7%
Mid Ulster	General election	8 June 2017	SF	54.5%
Mid Ulster	General election	12 December 2019	SF	45.9%
Newry and Armagh	General election	6 May 2010	SF	42.0%
Newry and Armagh	General election	7 May 2015	SF	41.1%
Newry and Armagh	General election	8 June 2017	SF	47.9%
Newry and Armagh	General election	12 December 2019	SF	40.0%
North Antrim	General election	6 May 2010	DUP	46.4%
North Antrim	General election	7 May 2015	DUP	43.2%
North Antrim	General election	8 June 2017	DUP	58.9%
North Antrim	General election	12 December 2019	DUP	47.4%
North Down	General election	6 May 2010	Ind	63.3%
North Down	General election	7 May 2015	Ind	49.2%
North Down	General election	8 June 2017	Ind	41.2%
North Down	General election	12 December 2019	APNI	45.2%
South Antrim	General election	6 May 2010	DUP	33.9%
South Antrim	General election	7 May 2015	UUP	32.7%
South Antrim	General election	8 June 2017	DUP	38.2%
South Antrim	General election	12 December 2019	DUP	35.3%
South Down	General election	6 May 2010	SDLP	48.5%
South Down	General election	7 May 2015	SDLP	42.3%
South Down	General election	8 June 2017	SF	39.9%
South Down	General election	12 December 2019	SF	32.4%
Strangford	General election	6 May 2010	DUP	45.9%
Strangford	General election	7 May 2015	DUP	44.4%
Strangford	General election	8 June 2017	DUP	62.0%
Strangford	General election	12 December 2019	DUP	47.2%
Upper Bann	General election	6 May 2010	DUP	33.8%
Upper Bann	General election	7 May 2015	DUP	32.7%
Upper Bann	General election	8 June 2017	DUP	43.5%
Upper Bann	General election	12 December 2019	DUP	41.0%
West Tyrone	General election	6 May 2010	SF	48.4%
West Tyrone	General election	7 May 2015	SF	43.5%
West Tyrone	General election	8 June 2017	SF	50.7%
West Tyrone	General election	12 December 2019	SF	40.2%