Home Postcode finder SA Gleeson Hill Gleeson Hill postcode SA Gleeson Hill is a locality in South Australia covered by postcode 5520. Postcode 5520 State or territory South Australia (SA) Region Sa Subs Near 1 Add a free Gleeson Hill business listing Be the first listing in Gleeson Hill Common questionsWhat is the postcode for Gleeson Hill?Gleeson Hill, SA has the postcode 5520.What state is Gleeson Hill in?Gleeson Hill is in South Australia (SA).Does postcode 5520 cover more than one suburb?Yes. Postcode 5520 covers 6 localities, so the postcode alone does not identify Gleeson Hill. Browse other postcodes in South Australia, or widen the search to every Australian postcode.