Home Postcode finder TAS Crayfish Creek Crayfish Creek postcode TAS Crayfish Creek is a locality in Tasmania covered by postcode 7321. Postcode 7321 State or territory Tasmania (TAS) Region Tasmania Add a free Crayfish Creek business listing Be the first listing in Crayfish Creek Common questionsWhat is the postcode for Crayfish Creek?Crayfish Creek, TAS has the postcode 7321.What state is Crayfish Creek in?Crayfish Creek is in Tasmania (TAS).Does postcode 7321 cover more than one suburb?Yes. Postcode 7321 covers 35 localities, so the postcode alone does not identify Crayfish Creek. Browse other postcodes in Tasmania, or widen the search to every Australian postcode.