Home Postcode finder SA Millswood Millswood postcode SA Millswood is a locality in South Australia covered by postcode 5034. Postcode 5034 State or territory South Australia (SA) Region Adelaide Add a free Millswood business listing More business listings in Millswood Businesses in MillswoodOnline Path31 Millswood Crescent · 08 7080 1614 Common questionsWhat is the postcode for Millswood?Millswood, SA has the postcode 5034.What state is Millswood in?Millswood is in South Australia (SA).Does postcode 5034 cover more than one suburb?Yes. Postcode 5034 covers 5 localities, so the postcode alone does not identify Millswood. Browse other postcodes in South Australia, or widen the search to every Australian postcode.