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Elections in Northern Ireland are held on a regular basis tolocal councils, theNorthern Ireland Assembly and to theParliament of the United Kingdom.

The Northern Ireland Assembly has 90 members, elected in 18 five-memberconstituencies by thesingle transferable vote (STV) method.^[1] Northern Ireland is represented at Westminster by18 single-member constituencies elected by thefirst-past-the-post method.

Unlike in the rest of the United Kingdom, elections in Northern Ireland are administered centrally by theChief Electoral Officer for Northern Ireland and theElectoral Office for Northern Ireland rather than by local authorities.

Legend

U:unionist; N:nationalist; O: other.

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Results over time(Northern Irish seats for parliament)

Election	SF (N)	DUP (U)	UUP (U)	SDLP (N)	APNI (O)	TUV (U)	UKUP (U)	UPUP (U)	UUUP (U)	VUPP (U)	RLP (N)	PUP (U)	Unity (N)	NP (N)	Lab (O)	Ind U	Ind N	Ind Lab	Total	Total U	Total N	Total O
1922			11											2					13	11	2
1923			11											2					13	11	2
1924			13																13	13
1929			11											2					13	11	2
1931			11											2					13	11	2
1935			11											2					13	11	2
1945			9											2		1		1	13	10	2	1
1950			10											2					12	10	2
1951			9											2	1				12	9	2	1
1955	2		10																12	10	2
1959			12																12	12
1964			12																12	12
1966			11								1								12	11	1
1970			8								1	1	2						12	9	3
Feb. 1974		1	7	1						3									12	11	1
Oct. 1974		1	6	1						3							1		12	10	2
1979		3	5	1					1							1	1		12	10	2
1983	1	3	11	1				1											17	15	2
1987	1	3	9	3				1											17	13	4
1992		3	9	4				1											17	13	4
1997	2	2	10	3			1												18	13	5
2001	4	5	6	3															18	11	7
2005	5	9	1	3															18	10	8
2010	5	8		3	1											1			18	9	8	1
2015	4	8	2	3												1			18	11	7
2017	7	10														1			18	11	7
2019	7	8		2	1														18	8	9	1
2024	7	5	1	2	1	1										1			18	8	9	1

• Sinn Féin have never taken their seats in theUnited Kingdom House of Commons due to their policy ofabstentionism.
• UUP MPs sat as members of theConservative Party until 1972.

Gains are marked with a grey background.

• 2018 North Antrim recall petition

• 1973 Northern Ireland border poll
• 1998 Northern Ireland Good Friday Agreement referendum

• 1975 United Kingdom European Communities membership referendum#Results by United Kingdom constituent countries
• 2011 United Kingdom Alternative Vote referendum#Results by constituent countries
• 2016 United Kingdom European Union membership referendum#Results by constituent countries & Gibraltar

Legend

U:unionist; N:nationalist; O: other.

• 1998 Northern Ireland Assembly election
• 2003 Northern Ireland Assembly election
• 2007 Northern Ireland Assembly election
• 2011 Northern Ireland Assembly election
• 2016 Northern Ireland Assembly election
• 2017 Northern Ireland Assembly election
• 2022 Northern Ireland Assembly election

From 1979 to 2020, three of the seats in theEuropean Parliament allocated to the United Kingdom formed a three-seat constituency elected bysingle transferable vote. It differed fromEuropean Parliament constituencies elsewhere in the United Kingdom which used theD'Hondt method. The United Kingdomwithdrew from the European Union on 31 January 2020, and the constituency was abolished.

• 1973 Northern Ireland Assembly election
• 1975 Northern Ireland Constitutional Convention election
• 1982 Northern Ireland Assembly election
• 1996 Northern Ireland Forum election

• 1921 Northern Ireland general election
• 1925 Northern Ireland general election
• 1929 Northern Ireland general election
• 1933 Northern Ireland general election
• 1938 Northern Ireland general election
• 1945 Northern Ireland general election
• 1949 Northern Ireland general election
• 1953 Northern Ireland general election
• 1958 Northern Ireland general election
• 1962 Northern Ireland general election
• 1965 Northern Ireland general election
• 1969 Northern Ireland general election

• List of Northern Ireland Parliament by-elections

• Adam Carr's Election Archive
• Parties and elections
• Northern Ireland Elections

• Elections in Northern Ireland

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