Home Postcodes by state TAS Cape Barren Island Cape Barren Island postcode TAS Cape Barren Island is a locality in Tasmania covered by postcode 7257. Postcode 7257 State or territory Tasmania (TAS) Region Tasmania Council area Flinders Council area based on Australian Bureau of Statistics data (ASGS Edition 3), CC BY 4.0. Add a free Cape Barren Island business listing More business listings in Cape Barren Island Suburbs near Cape Barren IslandStraight-line distance between locality centres.Lady BarronTAS 7255 · 20.2 kmStrzeleckiTAS 7255 · 21.1 km Businesses in Cape Barren IslandCape Barren Island School03 63593564 Common questionsWhat is the postcode for Cape Barren Island?Cape Barren Island, TAS has the postcode 7257.What state is Cape Barren Island in?Cape Barren Island is in Tasmania (TAS).What council is Cape Barren Island in?Cape Barren Island is in the Flinders local government area.Does postcode 7257 cover more than one suburb?No. Postcode 7257 covers Cape Barren Island only, which is unusual - most Australian postcodes cover several localities.What suburbs are near Cape Barren Island?The closest are Lady Barron (20.2 km) and Strzelecki (21.1 km). Distances are straight lines between locality centres. Browse other postcodes in Tasmania, or widen the search to every Australian postcode.