Home Postcode finder SA Purnong Landing Purnong Landing postcode SA Purnong Landing is a locality in South Australia covered by postcode 5238. Postcode 5238 State or territory South Australia (SA) Region Sa Subs Near 2 Add a free Purnong Landing business listing Be the first listing in Purnong Landing Common questionsWhat is the postcode for Purnong Landing?Purnong Landing, SA has the postcode 5238.What state is Purnong Landing in?Purnong Landing is in South Australia (SA).Does postcode 5238 cover more than one suburb?Yes. Postcode 5238 covers 31 localities, so the postcode alone does not identify Purnong Landing. Browse other postcodes in South Australia, or widen the search to every Australian postcode.