It was the sixth and bottom tier of football in the Northern New South Wales Football 6-tier system behind the NPL Northern NSW, Northern NSW State League Division 1, Zone Premier League, Zone League One and Zone League Two until is dissolution in 2023 due to a restructure to the Zone Football Leagues.
Pre-2013 this League was known as Northern New South Wales Interdistrict Division Four.
The competition is made up of 7 teams in 2022, each playing each other three times, home and away.
*Italics indicate the club possesses a team in a higher grade.
Promotion is made from the success of the First Grade team