Home Postcode finder SA Frahns Frahns postcode SA Frahns is a locality in South Australia covered by postcode 5238. Postcode 5238 State or territory South Australia (SA) Region Sa Subs Near 2 Add a free Frahns business listing Be the first listing in Frahns Common questionsWhat is the postcode for Frahns?Frahns, SA has the postcode 5238.What state is Frahns in?Frahns is in South Australia (SA).Does postcode 5238 cover more than one suburb?Yes. Postcode 5238 covers 31 localities, so the postcode alone does not identify Frahns. Browse other postcodes in South Australia, or widen the search to every Australian postcode.