1974–75 United Counties League

The 1974–75 United Counties League season was the 68th in the history of the United Counties League, a football competition in England.

Premier Division
The Premier Division featured 17 clubs which competed in the division last season, along with two new clubs, joined from the Spartan League:
 * Leighton Town
 * Vauxhall Motors

Division One
The Division One featured 16 clubs which competed in the division last season, along with 2 new clubs, promoted from Division Two:
 * Woodford United
 * Irchester United

Division Two
The Division Two featured 16 clubs which competed in the division last season, along with 4 new clubs:
 * British Timken Duston, relegated from Division One
 * Buckingham Town, transferred from the South Midlands League
 * Vauxhall Motors reserves
 * Potton United reserves