Home Postcodes by state NSW 2721 Postcode 2721 2721 is the postcode for 2 localities in NSW: Bland and Quandialla. Localities with postcode 2721BlandNSWQuandiallaNSW Postcode 2721 State or territory New South Wales (NSW) Localities 2 Council area Bland; Weddin Council area based on Australian Bureau of Statistics data (ASGS Edition 3), CC BY 4.0. Postcode 2720 · Postcode 2722