Counties 4 Somerset South

1st, 2nd and even 3rd XV sides can participate in the division as long as they are not from the same club.

The league champions are promoted to Counties 3 Somerset South while relegated teams used to drop to Somerset 3 South but since the RFU Adult Competition Review they instead now join county merit leagues.

Departing were Wyvern (champions), promoted to Counties 3 Somerset South.

Departing were Burnham-on-Sea II, Cheddar Valley and Crewkerne, promoted to Counties 3 Somerset South.

Departing were Chard, Wiveliscombe II, Somerton, Wells II and Castle Cary (1st - 5th in that order) all promoted to Counties 3 Somerset South.