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