Home Postcodes by state NSW 2406 Postcode 2406 2406 is the postcode for 3 localities in NSW and QLD: Mungindi, Weemelah and Mungindi. Localities with postcode 2406MungindiNSW 2406WeemelahNSW 2406MungindiQLD 2406 Postcode 2406 State or territory New South Wales (NSW) and Queensland (QLD) Localities 3 Council area Moree Plains; Balonne Council area based on Australian Bureau of Statistics data (ASGS Edition 3), CC BY 4.0. Postcode 2405 · Postcode 2408