Home Postcode finder SA Karatta Karatta postcode SA Karatta is a locality in South Australia covered by postcode 5223. Postcode 5223 State or territory South Australia (SA) Region Sa Subs Near 2 Add a free Karatta business listing Be the first listing in Karatta Common questionsWhat is the postcode for Karatta?Karatta, SA has the postcode 5223.What state is Karatta in?Karatta is in South Australia (SA).Does postcode 5223 cover more than one suburb?Yes. Postcode 5223 covers 30 localities, so the postcode alone does not identify Karatta. Browse other postcodes in South Australia, or widen the search to every Australian postcode.