Home Postcodes by state NSW 2333 Postcode 2333 2333 is the postcode for 14 localities in NSW: Baerami, Baerami Creek, Bengalla, Castle Rock, Edderton, Gungal and 8 more. Localities with postcode 2333BaeramiNSWBaerami CreekNSWBengallaNSWCastle RockNSWEddertonNSWGungalNSWKayugaNSWLiddellNSWManobalaiNSWMccullys GapNSWMuscle CreekNSWMuswellbrookNSWSandy HollowNSWWybongNSW Postcode 2333 State or territory New South Wales (NSW) Localities 14 Council area Muswellbrook; Upper Hunter; Singleton; Mainly Muswellbrook, partly Upper Hunter Council area based on Australian Bureau of Statistics data (ASGS Edition 3), CC BY 4.0. Postcode 2330 · Postcode 2334