The 1957–58 season was the 56th in the history of the Western Football League.
The champions for the first time in their history were Salisbury, and the winners of Division Two were Poole Town Reserves.Robinson, Michael (ed.), Non-League Football Tables 1889–2006, Soccer Books, 2006
Division One Division One remained at nineteen clubs after Wells City were relegated the previous season, Poole Town joined the Southern League, and two clubs joined:
Cinderford Town, champions of Division Two Minehead, fourth in Division Two
Division Two Division Two remained at eighteen clubs after Cinderford Town and Minehead were promoted to Division One, and two new clubs joined:
Taunton Town Reserves Wells City, relegated from Division One.
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