Home Postcodes by state NSW 4383 Postcode 4383 4383 is the postcode for 2 localities in NSW and QLD: Jennings and Wallangarra. Localities with postcode 4383JenningsNSW 4383WallangarraQLD 4383 Postcode 4383 State or territory New South Wales (NSW) and Queensland (QLD) Localities 2 Council area Tenterfield; Southern Downs Council area based on Australian Bureau of Statistics data (ASGS Edition 3), CC BY 4.0. Postcode 4382 · Postcode 4384