Home Postcode finder VIC Three Bridges Three Bridges postcode VIC Three Bridges is a locality in Victoria covered by postcode 3797. Postcode 3797 State or territory Victoria (VIC) Region Ringwood Add a free Three Bridges business listing Be the first listing in Three Bridges Common questionsWhat is the postcode for Three Bridges?Three Bridges, VIC has the postcode 3797.What state is Three Bridges in?Three Bridges is in Victoria (VIC).Does postcode 3797 cover more than one suburb?Yes. Postcode 3797 covers 5 localities, so the postcode alone does not identify Three Bridges. Browse other postcodes in Victoria, or widen the search to every Australian postcode.