Home Postcode finder TAS Mawbanna Mawbanna postcode TAS Mawbanna is a locality in Tasmania covered by postcode 7321. Postcode 7321 State or territory Tasmania (TAS) Region Tasmania Add a free Mawbanna business listing Be the first listing in Mawbanna Common questionsWhat is the postcode for Mawbanna?Mawbanna, TAS has the postcode 7321.What state is Mawbanna in?Mawbanna is in Tasmania (TAS).Does postcode 7321 cover more than one suburb?Yes. Postcode 7321 covers 35 localities, so the postcode alone does not identify Mawbanna. Browse other postcodes in Tasmania, or widen the search to every Australian postcode.