Home Postcodes by state NSW 2717 Postcode 2717 2717 is the postcode for 2 localities in NSW: Coomealla and Dareton. Localities with postcode 2717CoomeallaNSWDaretonNSW Postcode 2717 State or territory New South Wales (NSW) Localities 2 Council area Wentworth Council area based on Australian Bureau of Statistics data (ASGS Edition 3), CC BY 4.0. Postcode 2716 · Postcode 2720