Notional results for a UK general election on 5 May 2005 Northern Ireland - by party

Parties Constituencies Majorities Vote shares of winning candidates Turnouts

Party Constituencies contested Votes Vote share Constituencies won
Democratic Unionist Party 18 241,856 33.7% 9
Sinn Féin 18 174,530 24.3% 5
Social Democratic & Labour Party 18 125,626 17.5% 3
Ulster Unionist Party 18 127,414 17.8% 1

Estimates of the 2005 general election result in new constituencies

Professors Colin Rallings and Michael Thrasher, at The Elections Centre of the University of Exeter, produced estimates of the 2005 general election result as if the new constituencies recommended by the separate Parliamentary Boundary Commissions for England, Wales and Northern Ireland had then been in existence.