Home Postcode finder SA Cunningham Cunningham postcode SA Cunningham is a locality in South Australia covered by postcode 5571. Postcode 5571 State or territory South Australia (SA) Region Sa Subs Near 1 Add a free Cunningham business listing Be the first listing in Cunningham Common questionsWhat is the postcode for Cunningham?Cunningham, SA has the postcode 5571.What state is Cunningham in?Cunningham is in South Australia (SA).Does postcode 5571 cover more than one suburb?Yes. Postcode 5571 covers 9 localities, so the postcode alone does not identify Cunningham. Browse other postcodes in South Australia, or widen the search to every Australian postcode.