Home Postcodes by state NSW 2647 Postcode 2647 2647 is the postcode for Mulwala, NSW. Localities with postcode 2647MulwalaNSW Postcode 2647 State or territory New South Wales (NSW) Localities 1 Council area Federation Council area based on Australian Bureau of Statistics data (ASGS Edition 3), CC BY 4.0. Postcode 2646 · Postcode 2648