State League South Australia
| Organising body | Football South Australia |
|---|---|
| First season | 2006 (as SA State League) |
| Country | Australia |
| State | South Australia |
| Confederation | AFC |
| Number of clubs | 28 (30 in 2026)
|
| Level on pyramid | 3–4 |
| Promotion to | National Premier Leagues SA |
| Domestic cup(s) | National Australia Cup State Federation Cup |
| Current champions | SL1: Playford City (2024) SL2: The Cove (2024) |
| Current premiers | SL1: West Torrens Birkalla (2024) SL2: Pontian Eagles (2024) |
| Broadcaster(s) | YouTube (SL1 only) |
| Website | footballsa.com.au |
State League South Australia is a series of soccer leagues based in South Australia which consists of two divisions; SA State League 1 (SL1) and SA State League 2 (SL2). It runs as the second and third tiers of soccer in South Australia (third and fourth in Australia). It is conducted by Football South Australia, the state's governing body. After the reforming of the South Australian football league structure in 2012, the league increased its participants from 10 clubs to 16. Football South Australia announced a restructuring of the league format in South Australia for the 2016 to 2018 seasons, moving from a 2 tiered system to a 3 tiered system with the introduction of a new 3rd division (State League 2), which reduced the participants in the now State League 1 down to 12.
A-League Youth team Adelaide United entered their youth team in the 2015 season.