Home Postcode finder SA Teal Flat Teal Flat postcode SA Teal Flat 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 Teal Flat business listing Be the first listing in Teal Flat Common questionsWhat is the postcode for Teal Flat?Teal Flat, SA has the postcode 5238.What state is Teal Flat in?Teal Flat 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 Teal Flat. Browse other postcodes in South Australia, or widen the search to every Australian postcode.