Home Postcodes by state SA 5733 Postcode 5733 5733 is the postcode for 2 localities in SA: Farina and Marree. Localities with postcode 5733FarinaSAMarreeSA Postcode 5733 State or territory South Australia (SA) Localities 2 Council area Unincorporated SA Council area based on Australian Bureau of Statistics data (ASGS Edition 3), CC BY 4.0. Postcode 5732 · Postcode 5734