Home Postcode finder TAS Calder Calder postcode TAS Calder is a locality in Tasmania covered by postcode 7325. Postcode 7325 State or territory Tasmania (TAS) Region Tasmania Add a free Calder business listing Be the first listing in Calder Common questionsWhat is the postcode for Calder?Calder, TAS has the postcode 7325.What state is Calder in?Calder is in Tasmania (TAS).Does postcode 7325 cover more than one suburb?Yes. Postcode 7325 covers 20 localities, so the postcode alone does not identify Calder. Browse other postcodes in Tasmania, or widen the search to every Australian postcode.