Home Postcode finder SA Honiton Honiton postcode SA Honiton is a locality in South Australia covered by postcode 5576. Postcode 5576 State or territory South Australia (SA) Region Sa Subs Near 1 Add a free Honiton business listing Be the first listing in Honiton Common questionsWhat is the postcode for Honiton?Honiton, SA has the postcode 5576.What state is Honiton in?Honiton is in South Australia (SA).Does postcode 5576 cover more than one suburb?Yes. Postcode 5576 covers 3 localities, so the postcode alone does not identify Honiton. Browse other postcodes in South Australia, or widen the search to every Australian postcode.