Home Postcode finder SA Belton Belton postcode SA Belton is a locality in South Australia covered by postcode 5432. Postcode 5432 State or territory South Australia (SA) Region SA Outer Suburbs Add a free Belton business listing Be the first listing in Belton Common questionsWhat is the postcode for Belton?Belton, SA has the postcode 5432.What state is Belton in?Belton is in South Australia (SA).Does postcode 5432 cover more than one suburb?Yes. Postcode 5432 covers 5 localities, so the postcode alone does not identify Belton. Browse other postcodes in South Australia, or widen the search to every Australian postcode.