Home Postcode finder TAS Upper Castra Upper Castra postcode TAS Upper Castra is a locality in Tasmania covered by postcode 7315. Postcode 7315 State or territory Tasmania (TAS) Region Tasmania Add a free Upper Castra business listing Be the first listing in Upper Castra Common questionsWhat is the postcode for Upper Castra?Upper Castra, TAS has the postcode 7315.What state is Upper Castra in?Upper Castra is in Tasmania (TAS).Does postcode 7315 cover more than one suburb?Yes. Postcode 7315 covers 17 localities, so the postcode alone does not identify Upper Castra. Browse other postcodes in Tasmania, or widen the search to every Australian postcode.