1986–87 United Counties League

The 1986–87 United Counties League season was the 80th 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 two new clubs:
 * Kempston Rovers, promoted from Division One
 * Spalding United, transferred from the Northern Counties East League

Division One
Division One featured 18 clubs which competed in the division last season, along with one new club:
 * Newport Pagnell Town, relegated from the Premier Division