Home Postcode finder TAS Montana Montana postcode TAS Montana is a locality in Tasmania covered by postcode 7304. Postcode 7304 State or territory Tasmania (TAS) Region Tasmania Add a free Montana business listing Be the first listing in Montana Common questionsWhat is the postcode for Montana?Montana, TAS has the postcode 7304.What state is Montana in?Montana is in Tasmania (TAS).Does postcode 7304 cover more than one suburb?Yes. Postcode 7304 covers 29 localities, so the postcode alone does not identify Montana. Browse other postcodes in Tasmania, or widen the search to every Australian postcode.