Home Postcode finder SA Copley Copley postcode SA Copley is a locality in South Australia covered by postcode 5732. Postcode 5732 State or territory South Australia (SA) Region SA Outer Suburbs Add a free Copley business listing Be the first listing in Copley Common questionsWhat is the postcode for Copley?Copley, SA has the postcode 5732.What state is Copley in?Copley is in South Australia (SA).Does postcode 5732 cover more than one suburb?Yes. Postcode 5732 covers 2 localities, so the postcode alone does not identify Copley. Browse other postcodes in South Australia, or widen the search to every Australian postcode.