cape-barren-island postcode tas Home ›› Postcode Finder ›› TAS ›› Cape-Barren-Island Cape Barren Island local listingsThe suburb of Cape Barren Island is located in TAS and has a postcode of 7257. Free cape barren island business listing! Get the first free listing in cape barren island! Search and find other Postcodes in Tasmania or widen the search to Postcodes in Australia.