Home Postcode finder SA Mulgundawa Mulgundawa postcode SA Mulgundawa is a locality in South Australia covered by postcode 5255. Postcode 5255 State or territory South Australia (SA) Region Sa Subs Near 2 Add a free Mulgundawa business listing Be the first listing in Mulgundawa Common questionsWhat is the postcode for Mulgundawa?Mulgundawa, SA has the postcode 5255.What state is Mulgundawa in?Mulgundawa is in South Australia (SA).Does postcode 5255 cover more than one suburb?Yes. Postcode 5255 covers 19 localities, so the postcode alone does not identify Mulgundawa. Browse other postcodes in South Australia, or widen the search to every Australian postcode.