Home Postcode finder SA Wanbi Wanbi postcode SA Wanbi is a locality in South Australia covered by postcode 5310. Postcode 5310 State or territory South Australia (SA) Region Sa Subs Near 2 Add a free Wanbi business listing Be the first listing in Wanbi Common questionsWhat is the postcode for Wanbi?Wanbi, SA has the postcode 5310.What state is Wanbi in?Wanbi is in South Australia (SA).Does postcode 5310 cover more than one suburb?Yes. Postcode 5310 covers 2 localities, so the postcode alone does not identify Wanbi. Browse other postcodes in South Australia, or widen the search to every Australian postcode.