Home Postcode finder SA Kooroona Kooroona postcode SA Kooroona is a locality in South Australia covered by postcode 5558. Postcode 5558 State or territory South Australia (SA) Region Sa Subs Near 1 Add a free Kooroona business listing Be the first listing in Kooroona Common questionsWhat is the postcode for Kooroona?Kooroona, SA has the postcode 5558.What state is Kooroona in?Kooroona is in South Australia (SA).Does postcode 5558 cover more than one suburb?Yes. Postcode 5558 covers 14 localities, so the postcode alone does not identify Kooroona. Browse other postcodes in South Australia, or widen the search to every Australian postcode.