Elections to Ballymena Borough Council were held on 15 May 1985 on the same day as the other Northern Irish local government elections. The election used four district electoral areas to elect a total of 23 councillors.
<small>Note: "Votes" are the first preference votes.</small>
|- class="unsortable" align="centre" !rowspan=2 align="left"|Ward ! % <br /> !Cllrs<br /> ! % <br /> !Cllrs<br /> ! %<br /> !Cllrs<br /> ! %<br /> !Cllrs<br /> !rowspan=2|Total<br />Cllrs<br /> |- class="unsortable" align="center" !colspan=2 bgcolor="" | <span style="color:black;">DUP</span> !colspan=2 bgcolor="" | <span style="color:black;">UUP</span> !colspan=2 bgcolor="" | <span style="color:black;">SDLP</span> !colspan=2 bgcolor="white"| <span style="black;">Others</span> |- |align="left"|Ballymena Town |bgcolor="#D46A4C"|37.7 |bgcolor="#D46A4C"|3 |22.8 |2 |21.0 |1 |18.5 |1 |7 |- |align="left"|Braid Valley |bgcolor="#D46A4C"|48.5 |bgcolor="#D46A4C"|3 |35.3 |2 |0.0 |0 |16.2 |0 |5 |- |align="left"|Kells Water |bgcolor="#D46A4C"|73.6 |bgcolor="#D46A4C"|5 |26.4 |1 |0.0 |0 |0.0 |0 |6 |- |align="left"|The Main |bgcolor="#D46A4C"|68.8 |bgcolor="#D46A4C"|4 |31.2 |1 |0.0 |0 |0.0 |0 |5 |- |- class="unsortable" class="sortbottom" style="background:#C9C9C9" |align="left"| Total |55.6 |15 |28.6 |6 |6.3 |1 |9.5 |2 |23 |-
1985: 3 x DUP, 2 x UUP, 1 x SDLP, 1 x Independent Unionist
1985: 3 x DUP, 2 x UUP
1985: 5 x DUP, 1 x UUP
1985: 4 x DUP, 1 x UUP