Elections to Banbridge District Council were held on 30 May 1973 on the same day as the other Northern Irish local government elections. The election used two district electoral areas to elect a total of 15 councillors.
|- class="unsortable" align="centre" !rowspan=2 align="left"|Ward ! % <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;">UUP</span> !colspan=2 bgcolor="" | <span style="color:black;">SDLP</span> !colspan=2 bgcolor="white"| <span style="black;">Others</span> |- |align="left"|Area A |bgcolor="40BFF5"|57.3 |bgcolor="40BFF5"|4 |0.0 |0 |42.7 |3 |7 |- |align="left"|Area B |bgcolor="40BFF5"|72.2 |bgcolor="40BFF5"|7 |15.4 |1 |12.4 |0 |8 |- class="unsortable" class="sortbottom" style="background:#C9C9C9" |align="left"| Total |65.0 |11 |8.0 |1 |27.0 |3 |15 |-
1973: 4 x UUP, 2 x Independent Nationalist, 1 x Independent Unionist
1973: 7 x UUP, 1 x SDLP