Home Postcodes by state SA 5310 Postcode 5310 5310 is the postcode for 2 localities in SA: Caliph and Wanbi. Localities with postcode 5310CaliphSAWanbiSA Postcode 5310 State or territory South Australia (SA) Localities 2 Council area Loxton Waikerie; Karoonda East Murray Council area based on Australian Bureau of Statistics data (ASGS Edition 3), CC BY 4.0. Postcode 5309 · Postcode 5311