Home Postcodes by state NSW 2411 Postcode 2411 2411 is the postcode for Croppa Creek, NSW. Localities with postcode 2411Croppa CreekNSW Postcode 2411 State or territory New South Wales (NSW) Localities 1 Council area Gwydir Council area based on Australian Bureau of Statistics data (ASGS Edition 3), CC BY 4.0. Postcode 2410 · Postcode 2415