The 2024–25 Southern Combination Football League season is the 100th in the history of the competition, which lies at levels 9, 10 and 11 (steps 5 and 6, and county feeder) of the English football league system.
Division One increased from 18 clubs to 20, 16 of which competed from the previous season.
Division Two increased by three to 14 teams after Storrington were promoted to Division One, and Chichester City B, TD Shipley and Worthing Town joined the league.
Rottingdean Village left the league immediately prior to the start of the season [4] Promoted from West Sussex Premier Promoted to Division One
Promotion from this division is dependant on ground grading as well as league position.