Home Postcode finder SA South Kilkerran South Kilkerran postcode SA South Kilkerran is a locality in South Australia covered by postcode 5573. Postcode 5573 State or territory South Australia (SA) Region Sa Subs Near 1 Add a free South Kilkerran business listing Be the first listing in South Kilkerran Common questionsWhat is the postcode for South Kilkerran?South Kilkerran, SA has the postcode 5573.What state is South Kilkerran in?South Kilkerran is in South Australia (SA).Does postcode 5573 cover more than one suburb?Yes. Postcode 5573 covers 10 localities, so the postcode alone does not identify South Kilkerran. Browse other postcodes in South Australia, or widen the search to every Australian postcode.