Home Postcode finder TAS Karanja Karanja postcode TAS Karanja is a locality in Tasmania covered by postcode 7140. Postcode 7140 State or territory Tasmania (TAS) Region Tasmania Add a free Karanja business listing Be the first listing in Karanja Common questionsWhat is the postcode for Karanja?Karanja, TAS has the postcode 7140.What state is Karanja in?Karanja 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 Karanja. Browse other postcodes in Tasmania, or widen the search to every Australian postcode.