Elections to Carrickfergus Borough Council were held on 5 May 2011 on the same day as the other Northern Irish local government elections. The election used three district electoral areas to elect a total of 17 councillors.

There was no change from the prior election.

Election results

Note: "Votes" are the first preference votes.

Districts summary

|- class="unsortable" align="centre" !rowspan=2 align="left"|Ward ! % !Cllrs ! % !Cllrs ! % !Cllrs ! % !Cllrs !rowspan=2|TotalCllrs |- class="unsortable" align="center" !colspan=2 bgcolor="" | DUP !colspan=2 bgcolor="" | UUP !colspan=2 bgcolor="" | Alliance !colspan=2 bgcolor="white"| Others |- |align="left"|Carrick Castle |bgcolor="#D46A4C"|38.7 |bgcolor="#D46A4C"|2 |9.9 |1 |31.5 |1 |19.9 |1 |5 |- |align="left"|Kilroot |bgcolor="#D46A4C"|39.1 |bgcolor="#D46A4C"|3 |13.3 |1 |22.3 |1 |25.3 |1 |6 |- |align="left"|Knockagh Monument |bgcolor="#D46A4C"|50.3 |bgcolor="#D46A4C"|3 |22.1 |2 |24.9 |1 |2.7 |0 |6 |- |- class="unsortable" class="sortbottom" style="background:#C9C9C9" |align="left"| Total |43.2 |8 |15.9 |4 |25.1 |3 |15.8 |2 |17

Districts results

Carrick Castle

2005: 2 x DUP, 1 x Alliance, 1 x UUP, 1 x Independent 2011: 2 x DUP, 1 x Alliance, 1 x UUP, 1 x Independent 2005-2011 Change: No change

Kilroot

2005: 3 x DUP, 1 x Alliance, 1 x UUP, 1 x Independent 2011: 3 x DUP, 1 x Alliance, 1 x UUP, 1 x Independent 2005-2011 Change: No change

Knockagh Monument

2005: 3 x DUP, 2 x UUP, 1 x Alliance 2011: 3 x DUP, 2 x UUP, 1 x Alliance 2005-2011 Change: No change

References