Elections to the Adur District Council were held on 5 May 1988, with one third of the council up for election however no elections were held for the single-member ward St Mary's. Overall turnout dropped to 42.5%.
The election resulted in the new merger Social and Liberal Democrats retaining control of the council.
This resulted in the following composition of the council:
+/- figures represent changes from the last time these wards were contested.