Northern Ireland Parliament constituencies

The Northern Ireland House of Commons existed from 1921 to 1973 as the lower House of the devolved legislature of the part of the United Kingdom called Northern Ireland.

As in the UK Parliament the constituencies were classified as borough, county or university constituencies.

In 1921-29 the 52 provincial Members of Parliament were elected using proportional representation by the single transferable vote in multi member constituencies. The constituencies which returned one or two members to the UK Parliament, between 1922 and 1950, were used for Northern Ireland devolved elections in the 1921-29 period.

Between 1929 and 1969 there were 48 single member constituencies, using the first past the post method of election. The non-territorial University constituency continued to return 4 members using the single transferable vote.

For the 1969 election 4 new territorial constituencies were created to replace the University seats. The 52 constituencies ceased to exist after the Northern Ireland Parliament was suspended in 1972 and abolished in 1973.

Period	Constituency	Type	Notes
1921-1929	Antrim	county	7 MPs
1929-1973	Antrim, Antrim	county
1929-1973	Antrim, Bann Side	county
1929-1973	Antrim, Carrick	county
1969-1973	Antrim, Larkfield	county
1929-1973	Antrim, Larne	county
1929-1973	Antrim, Mid	county
1969-1973	Antrim, Newtownabbey	county
1929-1973	Antrim, North	county
1929-1973	Antrim, South	county
1921-1929	Armagh	county	4 MPs
1929-1973	Armagh, Central	county
1929-1973	Armagh, Mid	county
1929-1973	Armagh, North	county
1929-1973	Armagh, South	county
1929-1973	Belfast, Ballynafeigh	borough
1929-1973	Belfast, Bloomfield	borough
1929-1973	Belfast, Central	borough
1929-1973	Belfast, Clifton	borough
1929-1973	Belfast, Cromac	borough
1929-1973	Belfast, Dock	borough
1929-1973	Belfast, Duncairn	borough
1921-1929	Belfast, East	borough	4 MPs
1929-1973	Belfast, Falls	borough
1921-1929	Belfast, North	borough	4 MPs
1929-1973	Belfast, Oldpark	borough
1929-1973	Belfast, Pottinger	borough
1929-1973	Belfast, St. Anne's	borough
1929-1973	Belfast, Shankill	borough
1921-1929	Belfast, South	borough	4 MPs
1929-1973	Belfast, Victoria	borough
1921-1929	Belfast, West	borough	4 MPs
1929-1973	Belfast, Willowfield	borough
1929-1973	Belfast, Windsor	borough
1929-1973	Belfast, Woodvale	borough
1921-1929	Down	county	8 MPs
1929-1973	Down, Ards	county
1969-1973	Down, Bangor	county
1929-1973	Down, East	county
1929-1973	Down, Iveagh	county
1969-1973	Down, Lagan Valley	county
1929-1973	Down, Mid	county
1929-1973	Down, Mourne	county
1929-1973	Down, North	county
1929-1973	Down, South	county
1929-1973	Down, West	county
1921-1929	Fermanagh and Tyrone	county	8 MPs
1929-1973	Fermanagh, Enniskillen	county
1929-1973	Fermanagh, Lisnaskea	county
1929-1973	Fermanagh, South	county
1921-1929	Londonderry	county	5 MPs
1929-1973	Londonderry, City of Londonderry	borough
1929-1973	Londonderry, Foyle	borough
1929-1973	Londonderry, Mid	county
1929-1973	Londonderry, North	county
1929-1973	Londonderry, South	county
1921-1969	Queen’s University of Belfast	university	4 MPs
1929-1973	Tyrone, East	county
1929-1973	Tyrone, Mid	county
1929-1973	Tyrone, North	county
1929-1973	Tyrone, South	county
1929-1973	Tyrone, West	county

Source:

• Northern Ireland Parliamentary Election Results 1921-1972, compiled and edited by Sydney Elliott (Political Reference Publications 1973)