1988–89 United Counties League

The 1988–89 United Counties League season was the 82nd in the history of the United Counties League, a football competition in England.

Premier Division
The Premier Division featured 19 clubs which competed in the division last season, along with one new club:
 * Mirrlees Blackstone, promoted from Division One

Division One
Division One featured 19 clubs which competed in the division last season, no new clubs joined the division this season.