Home Postcode finder SA Cromer Cromer postcode SA Cromer is a locality in South Australia covered by postcode 5235. Postcode 5235 State or territory South Australia (SA) Region Sa Subs Near 2 Add a free Cromer business listing Be the first listing in Cromer Common questionsWhat is the postcode for Cromer?Cromer, SA has the postcode 5235.What state is Cromer in?Cromer is in South Australia (SA).Does postcode 5235 cover more than one suburb?Yes. Postcode 5235 covers 6 localities, so the postcode alone does not identify Cromer. Browse other postcodes in South Australia, or widen the search to every Australian postcode.