Home Postcode finder SA Prospect West Prospect West postcode SA Prospect West 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 West business listing Be the first listing in Prospect West Common questionsWhat is the postcode for Prospect West?Prospect West, SA has the postcode 5082.What state is Prospect West in?Prospect West 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 West. Browse other postcodes in South Australia, or widen the search to every Australian postcode.