For Assembly elections prior to 1996, the constituency was largely part of the North Antrim and South Antrim constituencies. From 1997 to 2010 it shared boundaries with the East Antrim UK Parliament constituency; this link was broken by the 2010 Westminster General Election but was restored at the 2011 Assembly elections.
For further details of the history and boundaries of the constituency, see East Antrim (UK Parliament constituency).
Note: The columns in this table are used only for presentational purposes, and no significance should be attached to the order of columns. For details of the order in which seats were won at each election, see the detailed results of that election.