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]
| Competition: | Sussex County Football League Division One |
| Season: | 2004–05 |
| Winners: | Horsham YMCA |
| Relegated: | East Grinstead Town Pagham Sidlesham |
| Matches: | 380 |
| Total Goals: | 1242 |
| Prevseason: | 2003–04 |
| Nextseason: | 2005–06 |
Division One featured 17 clubs which competed in the division last season, along with three new clubs, promoted from Division Two:
| Competition: | Sussex County Football League Division Two |
| Season: | 2004–05 |
| Winners: | Crowborough Athletic |
| Promoted: | Crowborough Athletic Wick Shoreham |
| Relegated: | Peacehaven & Telscombe Pease Pottage Village |
| Matches: | 306 |
| Total Goals: | 1043 |
| Prevseason: | 2003–04 |
| Nextseason: | 2005–06 |
Division Two featured 14 clubs which competed in the division last season, along with four new clubs.
| Competition: | Sussex County Football League Division Three |
| Season: | 2004–05 |
| Winners: | Storrington |
| Promoted: | Storrington Bexhill United |
| Matches: | 156 |
| Total Goals: | 569 |
| Prevseason: | 2003–04 |
| Nextseason: | 2005–06 |
Division Three featured eleven clubs which competed in the division last season, along with two new clubs: