Home Postcodes by state SA 5112 Postcode 5112 5112 is the postcode for 6 localities in SA: Elizabeth, Elizabeth East, Elizabeth Grove, Elizabeth South, Elizabeth Vale and Hillbank. Localities with postcode 5112ElizabethSAElizabeth EastSAElizabeth GroveSAElizabeth SouthSAElizabeth ValeSAHillbankSA Postcode 5112 State or territory South Australia (SA) Localities 6 Council area Playford; Mainly Playford, partly Salisbury Council area based on Australian Bureau of Statistics data (ASGS Edition 3), CC BY 4.0. Postcode 5111 · Postcode 5113