The 1984–85 Sussex County Football League season was the 60th in the history of Sussex County Football League a football competition in England.[1] [2]
| Competition: | Sussex County Football League Division One |
| Season: | 1984–85 |
| Winners: | Steyning Town |
| Promoted: | Hastings Town |
| Relegated: | Wick |
| Matches: | 240 |
| Total Goals: | 785 |
| Prevseason: | 1983–84 |
| Nextseason: | 1985–86 |
Division One featured 14 clubs which competed in the division last season, along with two new clubs, promoted from Division Two:
| Competition: | Sussex County Football League Division Two |
| Season: | 1984–85 |
| Winners: | Shoreham |
| Promoted: | Shoreham Chichester City |
| Relegated: | Bexhill Town |
| Matches: | 240 |
| Total Goals: | 751 |
| Prevseason: | 1983–84 |
| Nextseason: | 1985–86 |
Division Two featured 13 clubs which competed in the division last season, along with three new clubs:
| Competition: | Sussex County Football League Division Three |
| Season: | 1984–85 |
| Winners: | Oakwood |
| Promoted: | Oakwood Bosham |
| Matches: | 210 |
| Total Goals: | 719 |
| Prevseason: | 1983–84 |
| Nextseason: | 1985–86 |
Division Three featured ten clubs which competed in the division last season, along with five new clubs: