Home Postcodes by state NSW 2164 Postcode 2164 2164 is the postcode for 4 localities in NSW: Smithfield, Smithfield West, Wetherill Park and Woodpark. Localities with postcode 2164SmithfieldNSWSmithfield WestNSWWetherill ParkNSWWoodparkNSW Postcode 2164 State or territory New South Wales (NSW) Localities 4 Council area Fairfield; Cumberland Council area based on Australian Bureau of Statistics data (ASGS Edition 3), CC BY 4.0. Postcode 2163 · Postcode 2165