2010–11 Sussex County Football League

The 2010–11 Sussex County Football League season was the 86th in the history of Sussex County Football League a football competition in England.

Division One
Division One featured 18 clubs which competed in the division last season, along with two new clubs, promoted from Division Two:
 * Rye United
 * Sidley United

Division Two
Division Two featured 16 clubs which competed in the division last season, along with two new clubs:
 * Bexhill United, promoted from Division Three
 * Mile Oak, relegated from Division One

Also, Wealden changed name to A.F.C. Uckfield.

Division Three
Division Three featured 14 clubs which competed in the division last season, along with two new clubs:
 * Barnham, joined from the West Sussex League
 * Ferring, joined from the Worthing & District League