Home Postcode finder VIC Swan Reach Swan Reach postcode VIC Swan Reach is a locality in Victoria covered by postcode 3903. Postcode 3903 State or territory Victoria (VIC) Region Vic Far Country Add a free Swan Reach business listing More business listings in Swan Reach Businesses in Swan ReachSwan Reach Primary SchoolSchool Rd · 03 51564287 Common questionsWhat is the postcode for Swan Reach?Swan Reach, VIC has the postcode 3903.What state is Swan Reach in?Swan Reach is in Victoria (VIC).Does postcode 3903 cover more than one suburb?No. Postcode 3903 covers Swan Reach only, which is unusual - most Australian postcodes cover several localities. Browse other postcodes in Victoria, or widen the search to every Australian postcode.