Home Postcode finder SA Dowlingville Dowlingville postcode SA Dowlingville is a locality in South Australia covered by postcode 5555. Postcode 5555 State or territory South Australia (SA) Region Sa Subs Near 1 Add a free Dowlingville business listing Be the first listing in Dowlingville Common questionsWhat is the postcode for Dowlingville?Dowlingville, SA has the postcode 5555.What state is Dowlingville in?Dowlingville is in South Australia (SA).Does postcode 5555 cover more than one suburb?Yes. Postcode 5555 covers 11 localities, so the postcode alone does not identify Dowlingville. Browse other postcodes in South Australia, or widen the search to every Australian postcode.