1989 North Down Borough Council election

Main article: Northern Ireland local elections, 1989
1989 North Down Borough Council election
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All 24 seats to North Down Borough Council
13 seats needed for a majority
  First party Second party Third party
 
Party NI Conservatives UUP Alliance
Seats won 6 5 4
Seat change Increase 6 Decrease 3 Decrease 3
  Fourth party Fifth party Sixth party
 
Party DUP UPUP Independent
Seats won 4 2 2
Seat change Decrease 2 Steady 0 Increase 2
  Seventh party
 
Party Ind. Unionist
Seats won 1
Seat change Steady 0

Elections to North Down Borough Council were held on 17 May 1989 on the same day as the other Northern Irish local government elections. The election used four district electoral areas to elect a total of 24 councillors.

Prior to the election three Ulster Unionist politicians, including George Green, had defected to the Conservative Party in Northern Ireland. The election saw the Conservative presence in North Down doubling, with the Conservatives emerging as the single largest party on the council.