Home Postcode finder TAS Westerway Westerway postcode TAS Westerway is a locality in Tasmania covered by postcode 7140. Postcode 7140 State or territory Tasmania (TAS) Region Tasmania Add a free Westerway business listing More business listings in Westerway Businesses in WesterwayWesterway Primary SchoolDobson Hwy · 03 62881110 Common questionsWhat is the postcode for Westerway?Westerway, TAS has the postcode 7140.What state is Westerway in?Westerway 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 Westerway. Browse other postcodes in Tasmania, or widen the search to every Australian postcode.