Home Postcodes by state NSW 2397 Postcode 2397 2397 is the postcode for 2 localities in NSW: Bellata and Millie. Localities with postcode 2397BellataNSWMillieNSW Postcode 2397 State or territory New South Wales (NSW) Localities 2 Council area Narrabri; Moree Plains Council area based on Australian Bureau of Statistics data (ASGS Edition 3), CC BY 4.0. Postcode 2396 · Postcode 2398