Home Postcode finder TAS Castle Forbes Bay Castle Forbes Bay postcode TAS Castle Forbes Bay is a locality in Tasmania covered by postcode 7116. Postcode 7116 State or territory Tasmania (TAS) Region Tasmania Add a free Castle Forbes Bay business listing Be the first listing in Castle Forbes Bay Common questionsWhat is the postcode for Castle Forbes Bay?Castle Forbes Bay, TAS has the postcode 7116.What state is Castle Forbes Bay in?Castle Forbes Bay is in Tasmania (TAS).Does postcode 7116 cover more than one suburb?Yes. Postcode 7116 covers 8 localities, so the postcode alone does not identify Castle Forbes Bay. Browse other postcodes in Tasmania, or widen the search to every Australian postcode.