Home Postcodes by state SA 5252 Postcode 5252 5252 is the postcode for 6 localities in SA: Brukunga, Dawesley, Hay Valley, Kanmantoo, Nairne and St Ives. Localities with postcode 5252BrukungaSADawesleySAHay ValleySAKanmantooSANairneSASt IvesSA Postcode 5252 State or territory South Australia (SA) Localities 6 Council area Mount Barker Council area based on Australian Bureau of Statistics data (ASGS Edition 3), CC BY 4.0. Postcode 5251 · Postcode 5253