Home Postcodes by state NSW 2660 Postcode 2660 2660 is the postcode for 2 localities in NSW: Culcairn and Morven. Localities with postcode 2660CulcairnNSWMorvenNSW Postcode 2660 State or territory New South Wales (NSW) Localities 2 Council area Greater Hume Council area based on Australian Bureau of Statistics data (ASGS Edition 3), CC BY 4.0. Postcode 2659 · Postcode 2661