Home Postcode finder SA German Creek German Creek postcode SA German Creek is a locality in South Australia covered by postcode 5280. Postcode 5280 State or territory South Australia (SA) Region SA Outer Suburbs Add a free German Creek business listing Be the first listing in German Creek Common questionsWhat is the postcode for German Creek?German Creek, SA has the postcode 5280.What state is German Creek in?German Creek is in South Australia (SA).Does postcode 5280 cover more than one suburb?Yes. Postcode 5280 covers 16 localities, so the postcode alone does not identify German Creek. Browse other postcodes in South Australia, or widen the search to every Australian postcode.