Home Postcodes by state SA 5052 Postcode 5052 5052 is the postcode for 2 localities in SA: Belair and Glenalta. Localities with postcode 5052BelairSAGlenaltaSA Postcode 5052 State or territory South Australia (SA) Localities 2 Council area Mitcham Council area based on Australian Bureau of Statistics data (ASGS Edition 3), CC BY 4.0. Postcode 5051 · Postcode 5061