Home Postcode finder TAS Mawson Mawson postcode TAS Mawson is a locality in Tasmania covered by postcode 7151. Postcode 7151 State or territory Tasmania (TAS) Region Tasmania Add a free Mawson business listing Be the first listing in Mawson Common questionsWhat is the postcode for Mawson?Mawson, TAS has the postcode 7151.What state is Mawson in?Mawson is in Tasmania (TAS).Does postcode 7151 cover more than one suburb?Yes. Postcode 7151 covers 5 localities, so the postcode alone does not identify Mawson. Browse other postcodes in Tasmania, or widen the search to every Australian postcode.