Home Postcodes by state SA 5360 Postcode 5360 5360 is the postcode for 2 localities in SA: Greenock and Nain. Localities with postcode 5360GreenockSANainSA Postcode 5360 State or territory South Australia (SA) Localities 2 Council area Light Council area based on Australian Bureau of Statistics data (ASGS Edition 3), CC BY 4.0. Postcode 5357 · Postcode 5371