Home Postcode finder SA Glenunga Glenunga postcode SA Glenunga is a locality in South Australia covered by postcode 5064. Postcode 5064 State or territory South Australia (SA) Region Sa Subs Near 2 Add a free Glenunga business listing More business listings in Glenunga Businesses in GlenungaBy Urban315 Glen Osmond Road, Glenunga SA, Australia · +61 8 8363 1444Glenunga International High School99 L'Estrange St · 08 83795629 Common questionsWhat is the postcode for Glenunga?Glenunga, SA has the postcode 5064.What state is Glenunga in?Glenunga is in South Australia (SA).Does postcode 5064 cover more than one suburb?Yes. Postcode 5064 covers 6 localities, so the postcode alone does not identify Glenunga. Browse other postcodes in South Australia, or widen the search to every Australian postcode.