Home Postcode finder TAS Port Arthur Port Arthur postcode TAS Port Arthur is a locality in Tasmania covered by postcode 7182. Postcode 7182 State or territory Tasmania (TAS) Region Tasmania Add a free Port Arthur business listing More business listings in Port Arthur Businesses in Port ArthurPort Arthur Holiday ParkPort Arthur · (03) 6250 2340 Common questionsWhat is the postcode for Port Arthur?Port Arthur, TAS has the postcode 7182.What state is Port Arthur in?Port Arthur is in Tasmania (TAS).Does postcode 7182 cover more than one suburb?Yes. Postcode 7182 covers 2 localities, so the postcode alone does not identify Port Arthur. Browse other postcodes in Tasmania, or widen the search to every Australian postcode.