The season of NPL SA kicks off in late February and runs through early September, ending with a grand final at ServiceFM Stadium since 2022. The leading side earns the Premier title and advances to the NPL finals series, while the 11th and last teams are relegated to State League 1. Campbelltown City holds the record for most championships 7 titles; Croydon FC were the 2025 champions, and North Eastern MetroStars were the 2025 premiers. The regular season features 22 rounds in a double round-robin, followed by a finals series for the top six. South Australia remains part of the eight-league National Premier Leagues system in Australia. The league was established in 2012 as the successor to the Super League, under Football South Australia.