Home Postcode finder TAS Wickham Wickham postcode TAS Wickham is a locality in Tasmania covered by postcode 7256. Postcode 7256 State or territory Tasmania (TAS) Region Tasmania Add a free Wickham business listing Be the first listing in Wickham Common questionsWhat is the postcode for Wickham?Wickham, TAS has the postcode 7256.What state is Wickham in?Wickham is in Tasmania (TAS).Does postcode 7256 cover more than one suburb?Yes. Postcode 7256 covers 16 localities, so the postcode alone does not identify Wickham. Browse other postcodes in Tasmania, or widen the search to every Australian postcode.