Home Postcode finder TAS Hamilton Hamilton postcode TAS Hamilton is a locality in Tasmania covered by postcode 7140. Postcode 7140 State or territory Tasmania (TAS) Region Tasmania Add a free Hamilton business listing Be the first listing in Hamilton Common questionsWhat is the postcode for Hamilton?Hamilton, TAS has the postcode 7140.What state is Hamilton in?Hamilton is in Tasmania (TAS).Does postcode 7140 cover more than one suburb?Yes. Postcode 7140 covers 48 localities, so the postcode alone does not identify Hamilton. Browse other postcodes in Tasmania, or widen the search to every Australian postcode.