Home Postcode finder SA Castambul Castambul postcode SA Castambul is a locality in South Australia covered by postcode 5076. Postcode 5076 State or territory South Australia (SA) Region Sa Subs Near 2 Add a free Castambul business listing Be the first listing in Castambul Common questionsWhat is the postcode for Castambul?Castambul, SA has the postcode 5076.What state is Castambul in?Castambul is in South Australia (SA).Does postcode 5076 cover more than one suburb?Yes. Postcode 5076 covers 2 localities, so the postcode alone does not identify Castambul. Browse other postcodes in South Australia, or widen the search to every Australian postcode.