Home Postcodes by state SA 5063 Postcode 5063 5063 is the postcode for 5 localities in SA: Eastwood, Frewville, Fullarton, Highgate and Parkside. Localities with postcode 5063EastwoodSAFrewvilleSAFullartonSAHighgateSAParksideSA Postcode 5063 State or territory South Australia (SA) Localities 5 Council area Burnside; Unley Council area based on Australian Bureau of Statistics data (ASGS Edition 3), CC BY 4.0. Postcode 5062 · Postcode 5064