Home Postcodes by state NSW 2165 Postcode 2165 2165 is the postcode for 4 localities in NSW: Fairfield, Fairfield East, Fairfield Heights and Fairfield West. Localities with postcode 2165FairfieldNSWFairfield EastNSWFairfield HeightsNSWFairfield WestNSW Postcode 2165 State or territory New South Wales (NSW) Localities 4 Council area Fairfield Council area based on Australian Bureau of Statistics data (ASGS Edition 3), CC BY 4.0. Postcode 2164 · Postcode 2166