Home Postcode finder SA Yundi Yundi postcode SA Yundi is a locality in South Australia covered by postcode 5172. Postcode 5172 State or territory South Australia (SA) Region Adelaide Add a free Yundi business listing Be the first listing in Yundi Common questionsWhat is the postcode for Yundi?Yundi, SA has the postcode 5172.What state is Yundi in?Yundi is in South Australia (SA).Does postcode 5172 cover more than one suburb?Yes. Postcode 5172 covers 13 localities, so the postcode alone does not identify Yundi. Browse other postcodes in South Australia, or widen the search to every Australian postcode.