The Isthmian League is a regional football league that covering Southern England, London, East and South East England. 82 teams split into four divisions make up this league. The Premier Divisions sits above three “feeder” divisions. North, South Central and South East divisions. Together with the Southern League and the Northern Premier League, it forms the seventh and eighth levels of the English football league system.
A.F.C. Hornchurch, Bishop's Stortford F.C., Bognor Regis Town F.C., Brightlingsea Regent F.C., Burgess Hill Town F.C., Carshalton Athletic F.C., Corinthian-Casuals F.C., Dorking Wanderers F.C., Enfield Town F.C., Folkestone Invicta F.C., Haringey Borough F.C., Harlow Town F.C., Kingstonian F.C., Leatherhead F.C., Lewes F.C., Margate F.C., Merstham F.C., Potters Bar Town F.C., Tonbridge Angels F.C., Whitehawk F.C., Wingate & Finchley F.C., Worthing F.C.
Cheriton Road - Folkestone Invicta F.C., Coles Park - Haringey Borough F.C., Enclosed Ground - Whitehawk F.C., Fetcham Grove - Kingstonian F.C., Leatherhead F.C., Hartsdown Park - Margate F.C., Hornchurch Stadium - A.F.C. Hornchurch, King George's Field - Corinthian-Casuals F.C., Leylands Park - Burgess Hill Town F.C., Longmead Stadium - Tonbridge Angels F.C., Moatside - Merstham F.C., North Road - Brightlingsea Regent F.C., Nyewood Lane - Bognor Regis Town F.C., Parkfield - Potters Bar Town F.C., Queen Elizabeth II Stadium - Enfield Town F.C., The Bibby Financial Services Stadium - Worthing F.C., The Dripping Pan - Lewes F.C., The Harlow Arena - Harlow Town F.C., The Maurice Rebak Stadium - Wingate & Finchley F.C., War Memorial Sports Ground - Carshalton Athletic F.C., Westhumble Playing Fields - Dorking Wanderers F.C., Woodside Park - Bishop's Stortford F.C.