The 2004–05 Sussex County Football League season was the 80th in the history of Sussex County Football League a football competition in England.
[1][2] Division One featured 17 clubs which competed in the division last season, along with three new clubs, promoted from Division Two: Division Two featured 14 clubs which competed in the division last season, along with four new clubs.
Division Three featured eleven clubs which competed in the division last season, along with two new clubs: