Home Postcodes by state NSW 2569 Postcode 2569 2569 is the postcode for Douglas Park, NSW. Localities with postcode 2569Douglas ParkNSW Postcode 2569 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 2568 · Postcode 2570