Home Postcode finder TAS Trial Harbour Trial Harbour postcode TAS Trial Harbour is a locality in Tasmania covered by postcode 7469. Postcode 7469 State or territory Tasmania (TAS) Region Tasmania Add a free Trial Harbour business listing Be the first listing in Trial Harbour Common questionsWhat is the postcode for Trial Harbour?Trial Harbour, TAS has the postcode 7469.What state is Trial Harbour in?Trial Harbour is in Tasmania (TAS).Does postcode 7469 cover more than one suburb?Yes. Postcode 7469 covers 4 localities, so the postcode alone does not identify Trial Harbour. Browse other postcodes in Tasmania, or widen the search to every Australian postcode.