Home Postcode finder SA Glencoe Glencoe postcode SA Glencoe 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 Glencoe business listing More business listings in Glencoe Businesses in GlencoeGlencoe Central Primary SchoolKirrup Rd · 08 87394309 Common questionsWhat is the postcode for Glencoe?Glencoe, SA has the postcode 5291.What state is Glencoe in?Glencoe 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 Glencoe. Browse other postcodes in South Australia, or widen the search to every Australian postcode.