highgate postcode sa Home ›› Postcode Finder ›› SA ›› Highgate Highgate local listingsThe suburb of Highgate is located in SA and has a postcode of 5063. Free highgate business listing! 1Highgate Primary School12 Hampstead Ave 08 827143992Concordia College45 Cheltenham St 08 827204443My Cleaning AppAustralia +61 479159677 View more business listings in highgate Search and find other Postcodes in South Australia or widen the search to Postcodes in Australia.