Home Postcode finder TAS Garden Island Creek Garden Island Creek postcode TAS Garden Island Creek is a locality in Tasmania covered by postcode 7112. Postcode 7112 State or territory Tasmania (TAS) Region Tasmania Add a free Garden Island Creek business listing Be the first listing in Garden Island Creek Common questionsWhat is the postcode for Garden Island Creek?Garden Island Creek, TAS has the postcode 7112.What state is Garden Island Creek in?Garden Island Creek is in Tasmania (TAS).Does postcode 7112 cover more than one suburb?Yes. Postcode 7112 covers 10 localities, so the postcode alone does not identify Garden Island Creek. Browse other postcodes in Tasmania, or widen the search to every Australian postcode.