Elections to Castlereagh Borough Council were held on 20 May 1981 on the same day as the other Northern Irish local government elections. The election used three district electoral areas to elect a total of 19 councillors.
Elections to Castlereagh Borough Council were held on 20 May 1981 on the same day as the other Northern Irish local government elections. The election used three district electoral areas to elect a total of 19 councillors. (en)