Home Postcode finder TAS Barnes Bay Barnes Bay postcode TAS Barnes Bay is a locality in Tasmania covered by postcode 7150. Postcode 7150 State or territory Tasmania (TAS) Region Tasmania Add a free Barnes Bay business listing Be the first listing in Barnes Bay Common questionsWhat is the postcode for Barnes Bay?Barnes Bay, TAS has the postcode 7150.What state is Barnes Bay in?Barnes Bay is in Tasmania (TAS).Does postcode 7150 cover more than one suburb?Yes. Postcode 7150 covers 19 localities, so the postcode alone does not identify Barnes Bay. Browse other postcodes in Tasmania, or widen the search to every Australian postcode.