Isthmian Division One South

Champions: Dulwich Hamlet · Promoted: Dulwich Hamlet, Maidstone United (play-offs)

Defunct · last season 2017-18

2012-13 · 8 stadiums · 22 clubs

Ground	Club	City
Champion Hill	Dulwich Hamlet	Dulwich
Fetcham Grove	Leatherhead	Leatherhead
Gallagher Stadium	Maidstone United	Maidstone
Imperial Fields	Tooting & Mitcham United	Mitcham
Stompond Lane Sports Ground	Walton & Hersham	Walton-on-Thames
Sussex Transport Community Stadium	Worthing	Worthing
The Fullicks Stadium	Folkestone Invicta	Folkestone
The Saffrons Football Ground	Eastbourne Town	Eastbourne