Home Postcode finder SA Koongawa Koongawa postcode SA Koongawa is a locality in South Australia covered by postcode 5650. Postcode 5650 State or territory South Australia (SA) Region SA Outer Suburbs Add a free Koongawa business listing Be the first listing in Koongawa Common questionsWhat is the postcode for Koongawa?Koongawa, SA has the postcode 5650.What state is Koongawa in?Koongawa is in South Australia (SA).Does postcode 5650 cover more than one suburb?Yes. Postcode 5650 covers 3 localities, so the postcode alone does not identify Koongawa. Browse other postcodes in South Australia, or widen the search to every Australian postcode.