Home Postcode finder SA Prospect East Prospect East postcode SA Prospect East is a locality in South Australia covered by postcode 5082. Postcode 5082 State or territory South Australia (SA) Region Sa Subs Near 1 Add a free Prospect East business listing Be the first listing in Prospect East Common questionsWhat is the postcode for Prospect East?Prospect East, SA has the postcode 5082.What state is Prospect East in?Prospect East is in South Australia (SA).Does postcode 5082 cover more than one suburb?Yes. Postcode 5082 covers 6 localities, so the postcode alone does not identify Prospect East. Browse other postcodes in South Australia, or widen the search to every Australian postcode.