Home Postcode finder SA Glenalta Glenalta postcode SA Glenalta is a locality in South Australia covered by postcode 5052. Postcode 5052 State or territory South Australia (SA) Region Sa Subs Near 2 Add a free Glenalta business listing Be the first listing in Glenalta Common questionsWhat is the postcode for Glenalta?Glenalta, SA has the postcode 5052.What state is Glenalta in?Glenalta is in South Australia (SA).Does postcode 5052 cover more than one suburb?Yes. Postcode 5052 covers 2 localities, so the postcode alone does not identify Glenalta. Browse other postcodes in South Australia, or widen the search to every Australian postcode.