Home Postcode finder SA Glenburnie Glenburnie postcode SA Glenburnie is a locality in South Australia covered by postcode 5291. Postcode 5291 State or territory South Australia (SA) Region SA Outer Suburbs Add a free Glenburnie business listing More business listings in Glenburnie Businesses in GlenburnieGlenburnie Primary SchoolKromelite Rd · 08 87253695 Common questionsWhat is the postcode for Glenburnie?Glenburnie, SA has the postcode 5291.What state is Glenburnie in?Glenburnie is in South Australia (SA).Does postcode 5291 cover more than one suburb?Yes. Postcode 5291 covers 34 localities, so the postcode alone does not identify Glenburnie. Browse other postcodes in South Australia, or widen the search to every Australian postcode.