Home Postcode finder SA Mantung Mantung postcode SA Mantung is a locality in South Australia covered by postcode 5308. Postcode 5308 State or territory South Australia (SA) Region Sa Subs Near 2 Add a free Mantung business listing Be the first listing in Mantung Common questionsWhat is the postcode for Mantung?Mantung, SA has the postcode 5308.What state is Mantung in?Mantung is in South Australia (SA).Does postcode 5308 cover more than one suburb?Yes. Postcode 5308 covers 6 localities, so the postcode alone does not identify Mantung. Browse other postcodes in South Australia, or widen the search to every Australian postcode.