Home Postcodes by state NSW 2298 Postcode 2298 2298 is the postcode for 3 localities in NSW: Georgetown, Waratah and Waratah West. Localities with postcode 2298GeorgetownNSWWaratahNSWWaratah WestNSW Postcode 2298 State or territory New South Wales (NSW) Localities 3 Council area Newcastle Council area based on Australian Bureau of Statistics data (ASGS Edition 3), CC BY 4.0. Postcode 2297 · Postcode 2299