Home Postcode finder SA Reedy Creek Reedy Creek postcode SA Reedy Creek is a locality in South Australia covered by postcode 5275. Postcode 5275 State or territory South Australia (SA) Region SA Outer Suburbs Add a free Reedy Creek business listing Be the first listing in Reedy Creek Common questionsWhat is the postcode for Reedy Creek?Reedy Creek, SA has the postcode 5275.What state is Reedy Creek in?Reedy Creek is in South Australia (SA).Does postcode 5275 cover more than one suburb?Yes. Postcode 5275 covers 15 localities, so the postcode alone does not identify Reedy Creek. Browse other postcodes in South Australia, or widen the search to every Australian postcode.