Teams were divided into two divisions; the Premier and the First.
The Premier Division was reduced from 21 clubs to 20, and featured two new clubs after Barnstaple Town were promoted to Southern League Division One South & West, Winterbourne United resigned from the league, and Welton Rovers were relegated to the First Division.
Bristol Manor Farm, Buckland Athletic, Clevedon Town, Melksham Town and Street applied for promotion to Step 4 for 2017–18.
With the news that Gillingham Town were resigning from the Western League for financial reasons at the end of the season,[1] and the fact that the Premier Division is already two clubs short, only one club was relegated.
The First Division was increased from 21 clubs to 22, and featured three new clubs after the promotion of Chipping Sodbury and Wells City to the Premier Division: