List of parliamentary constituencies in Northern Ireland
Northern Ireland is divided into 18 Parliamentary constituencies - 4 borough constituencies in Belfast and 14 county constituencies elsewhere. Section 33 of the Northern Ireland Act 1998 provides that the constituencies for the Northern Ireland Assembly are the same as the constituencies that are used for the United Kingdom Parliament. Parliamentary constituencies are not used for local government, which is instead carried out by 11 district councils; these often have different boundaries.
Each constituency returns one Member of Parliament (MP) to the House of Commons at Westminster and five Members of the Legislative Assembly (MLAs) to the devolved Northern Ireland Assembly at Stormont. Six MLAs were returned per constituency until the Assembly Members (Reduction of Numbers) Act (Northern Ireland) 2016 reduced the number to five, effective from the 2017 Assembly election.
2015 General Election
Democratic Unionist Sinn Féin Social Democratic and Labour Ulster Unionist Alliance Party Traditional Unionist Voice Independent People Before Profit
The data in this table is from the BBC Election Website.
Full official results for the 2015 General Election in Northern Ireland can be found on the website of the Electoral Office of Northern Ireland.
Historical representation by party
Where a cell is marked --> (with a different colour background to the preceding cell) it indicates that the previous MP continued to sit under a new party name.
1885 to 1918
1918 to 1922
1922 to 1950
|Queen's University of Belfast||Whitla||Sinclair||Savory|
|Fermanagh and Tyrone
1950 to 1983 (12 MPs)
Unionist parties: Ulster Unionist Protestant Unionist (pre-1971) Democratic Unionist (post-1971) Vanguard Unionist Conservative Party Independent Unionist Ulster Popular Unionist Party
Nationalist parties: Independent Republican Unity Nationalist Party Anti H-Block (pre-1982) Sinn Féin (post-1982) Labour Party Republican Labour Social Democratic and Labour
Other: Alliance Independent
|Constituency||1950||51||1951||52||53||54||1955||57||59||1959||63||1964||1966||69||1970||70||71||72||73||Feb 74||Oct 74||75||77||78||1979||80||81||82|
|Antrim North||H. O'Neill||P. O'Neill||Clark||Paisley||-->|
|Fermanagh and South Tyrone||Healy||Grosvenor1||Hamilton||McManus||West||Maguire||Sands||Carron|
1The constituency was won by Philip Clarke of Sinn Féin, but he was unseated on petition on the basis that his criminal conviction (for Irish Republican Army activity) made him ineligible. Instead, the seat was awarded to the Ulster Unionist Party (UUP) candidate.
2The seat was originally won by Tom Mitchell of Sinn Féin, but Mitchell was subsequently unseated upon petition, on the grounds that his terrorist convictions made him ineligible to sit in Parliament. The seat was awarded to Charles Beattie of the UUP. However, Beattie in turn was also found ineligible to sit due to holding an office of profit under the crown, triggering a further by-election.
1983 to present (17, then 18 MPs)
Proposals made in 2016
As part of the Sixth Periodic Review of Westminster constituencies the Boundary Commission for Northern Ireland published the following 17 proposed constituencies to be fought at the 2020 general election (map).
- Belfast East
- Belfast North West
- Belfast South West
- East Antrim
- Fermanagh and South Tyrone
- Newry and Armagh
- North Down
- North Tyrone
- South Antrim
- South Down
- Upper Bann and Blackwater
- West Antrim
- West Down
- BC denotes borough constituency, CC denotes county constituency.
- The majority is the number of votes the winning candidate receives more than their nearest rival.
- "FAQs". Boundary Commission for Northern Ireland. Retrieved 10 April 2014.
- "Assembly Members (Reduction of Numbers) Act (Northern Ireland) 2016". Retrieved 4 March 2017.
- "UK Parliamentary Election - Results". Electoral Office of Northern Ireland. Retrieved 25 June 2015.
- 2018 Review Boundary Commission for Northern Ireland