Home Postcode finder SA Corny Point Corny Point postcode SA Corny Point is a locality in South Australia covered by postcode 5575. Postcode 5575 State or territory South Australia (SA) Region Sa Subs Near 1 Add a free Corny Point business listing Be the first listing in Corny Point Common questionsWhat is the postcode for Corny Point?Corny Point, SA has the postcode 5575.What state is Corny Point in?Corny Point is in South Australia (SA).Does postcode 5575 cover more than one suburb?Yes. Postcode 5575 covers 17 localities, so the postcode alone does not identify Corny Point. Browse other postcodes in South Australia, or widen the search to every Australian postcode.