Home Postcodes by state NSW 2168 Postcode 2168 2168 is the postcode for 8 localities in NSW: Ashcroft, Busby, Cartwright, Green Valley, Heckenberg, Hinchinbrook and 2 more. Localities with postcode 2168AshcroftNSWBusbyNSWCartwrightNSWGreen ValleyNSWHeckenbergNSWHinchinbrookNSWMillerNSWSadleirNSW Postcode 2168 State or territory New South Wales (NSW) Localities 8 Council area Liverpool Council area based on Australian Bureau of Statistics data (ASGS Edition 3), CC BY 4.0. Postcode 2167 · Postcode 2170