The 1990–91 South Western Football League season was the 40th in the history of South Western League. The league consisted of 17 teams.
Stadia and locations
Team Location County StadiumBodmin Town BodminCornwallPriory ParkSt BlazeySt BlazeyCornwallBlaise ParkFalmouth Town FalmouthCornwallBickland ParkNewquay NewquayCornwallMount WiseSt AustellSt AustellCornwallPoltair ParkTorpoint AthleticTorpointCornwallThe MillTruro City TruroCornwallTreyew RoadBugleBugleCornwallAppledore/B A A CAppledoreDevonMarshfordWadebridge Town WadebridgeCornwallBodieve ParkMillbrookMillbrookCornwallJenkins ParkTavistockTavistockDevonLangsford ParkPorthlevenPorthlevenCornwallGala ParcClyst RoversClyst HonitonDevonWaterslade ParkLauncestonLauncestonCornwallPennygillamHolsworthyHolsworthyDevonUpcott FieldPenzancePenzanceCornwallPenlee Park
League table
The division featured 17 teams, all from last season.
References