Home Postcode finder SA Boonerdo Boonerdo postcode SA Boonerdo is a locality in South Australia covered by postcode 5633. Postcode 5633 State or territory South Australia (SA) Region SA Outer Suburbs Add a free Boonerdo business listing Be the first listing in Boonerdo Common questionsWhat is the postcode for Boonerdo?Boonerdo, SA has the postcode 5633.What state is Boonerdo in?Boonerdo is in South Australia (SA).Does postcode 5633 cover more than one suburb?Yes. Postcode 5633 covers 2 localities, so the postcode alone does not identify Boonerdo. Browse other postcodes in South Australia, or widen the search to every Australian postcode.