Soccer in South Australia is organised by Football Federation of South Australia (FFSA) who organise local competitions. FFSA is a member of Football Federation Australia National representation South Australia has one team in the A-League named Adelaide United. Adelaide United also have associated youth and women's teams in the National Youth League and W-League. South Australia was previously represented in the now defunct National Soccer League by Adelaide City and West Adelaide, who have historically faced off in the Adelaide derby. The two sides now compete in the National Premier Leagues South Australia. Federation Cup The Federation Cup is a knock-out competition for South Australian clubs. Since 2014 the Federation Cup winner also qualifiers to participate in the national FFA Cup. Clubs and leagues The highest South Australian league is the National Premier Leagues South Australia (NPL SA). Since 2013 The winner of this competition plays off against the winners of the NPL conferences from other states in a national finals series to determine the NPL Champion. Below the NPL SA in order are the SA State League 1 and SA State League 2. National Premier Leagues South Australia Adelaide City Adelaide Comets Adelaide Olympic Adelaide United Youth Campbelltown City Croydon Kings Cumberland United North Eastern MetroStars South Adelaide West Adelaide West Torrens Birkalla White City FC Beograd South Australian State League 1 Adelaide Blue Eagles Adelaide Hills Hawks Adelaide Croatia Raiders Adelaide Victory Cumberland United Fulham United Modbury Jets Adelaide Vipers Para Hills Knights Playford City Patriots Seaford Rangers FC Sturt Lions Western Strikers White City South Australian State League 2 Adelaide Cobras Adelaide Vipers Salisbury United Noarlunga United Eastern United Gawler SC Modbury Vista Mount Barker United Port Adelaide Pirates The Cove Northern Demons Pontian Eagles Below are leagues based in South Australia outside of the NPL system. Limestone Coast Football Association Apollo Mount Gambier Soccer Club Blue Lake Soccer Club Gambier Centrals Soccer Club International Mount Gambier Soccer Club Millicent United Soccer Club Naracoorte United Soccer Club Riverland Soccer Association Barmera United Soccer Club Berri River Rangers Soccer Club Loxton United Soccer Club Renmark Olympic Soccer Club Collegiate Soccer League Adelaide Comets Adelaide Hills Hawks Adelaide Thunder Football Club Adelaide Uni Grads Blue Adelaide Uni Grads Red Adelaide Uni SC Black Adelaide Uni SC White Adelaide Victory FC Blackwood High School Forest SC Campbelltown City Soccer club Cardijn College Christian Brothers College FC Concordia Old Collegians Soccer