2011–12 Sussex County Football League

The 2011–12 Sussex County Football League season was the 87th in the history of Sussex County Football League a football competition in England.

Division One
Division One featured 16 clubs which competed in the division last season, along with four new clubs.
 * Clubs promoted from Division Two:
 * A.F.C. Uckfield
 * Lancing
 * Worthing United
 * Plus:
 * Horsham YMCA, relegated from the Isthmian League

Division Two
Division Two featured 14 clubs which competed in the division last season, along with four new clubs:
 * Dorking Wanderers, promoted from Division Three
 * Eastbourne United Association, relegated from Division One
 * Hailsham Town, demoted from Division One
 * Wick, demoted from Division One

Division Three
Division Three featured 14 clubs which competed in the division last season, along with two new clubs:
 * Clymping, relegated from Division Two
 * Roffey, joined from the Mid-Sussex League