Home Postcodes by state NSW 2681 Postcode 2681 2681 is the postcode for 2 localities in NSW: Myall Park and Yenda. Localities with postcode 2681Myall ParkNSWYendaNSW Postcode 2681 State or territory New South Wales (NSW) Localities 2 Council area Mainly Griffith, partly Carrathool; Griffith Council area based on Australian Bureau of Statistics data (ASGS Edition 3), CC BY 4.0. Postcode 2680 · Postcode 2700