Home Postcode finder TAS Whitemark Whitemark postcode TAS Whitemark is a locality in Tasmania covered by postcode 7255. Postcode 7255 State or territory Tasmania (TAS) Region Tasmania Add a free Whitemark business listing More business listings in Whitemark Businesses in WhitemarkFlinders Island District High School121 Thule Rd · 03 63592021 Common questionsWhat is the postcode for Whitemark?Whitemark, TAS has the postcode 7255.What state is Whitemark in?Whitemark is in Tasmania (TAS).Does postcode 7255 cover more than one suburb?Yes. Postcode 7255 covers 14 localities, so the postcode alone does not identify Whitemark. Browse other postcodes in Tasmania, or widen the search to every Australian postcode.