Home Postcode finder SA Highgate Highgate postcode SA Highgate is a locality in South Australia covered by postcode 5063. Postcode 5063 State or territory South Australia (SA) Region Sa Subs Near 2 Add a free Highgate business listing More business listings in Highgate Businesses in HighgateAustralian Patent and Trademark Services87 Fullarton Road, Highgate SA 5063, Australia · 1300 138 802Concordia College45 Cheltenham St · 08 82720444Highgate Junior Primary School12 Hampstead Ave · 08 82719622 Common questionsWhat is the postcode for Highgate?Highgate, SA has the postcode 5063.What state is Highgate in?Highgate is in South Australia (SA).Does postcode 5063 cover more than one suburb?Yes. Postcode 5063 covers 5 localities, so the postcode alone does not identify Highgate. Browse other postcodes in South Australia, or widen the search to every Australian postcode.