Home Postcodes by state NSW 2573 Postcode 2573 2573 is the postcode for Tahmoor, NSW. Localities with postcode 2573TahmoorNSW Postcode 2573 State or territory New South Wales (NSW) Localities 1 Council area Wollondilly Council area based on Australian Bureau of Statistics data (ASGS Edition 3), CC BY 4.0. Postcode 2572 · Postcode 2574