Home Postcode finder SA Moolawatana Moolawatana postcode SA Moolawatana is a locality in South Australia covered by postcode 5731. Postcode 5731 State or territory South Australia (SA) Region SA Outer Suburbs Add a free Moolawatana business listing Be the first listing in Moolawatana Common questionsWhat is the postcode for Moolawatana?Moolawatana, SA has the postcode 5731.What state is Moolawatana in?Moolawatana is in South Australia (SA).Does postcode 5731 cover more than one suburb?Yes. Postcode 5731 covers 9 localities, so the postcode alone does not identify Moolawatana. Browse other postcodes in South Australia, or widen the search to every Australian postcode.