Home Postcodes by state NSW 2297 Postcode 2297 2297 is the postcode for Tighes Hill, NSW. Localities with postcode 2297Tighes HillNSW Postcode 2297 State or territory New South Wales (NSW) Localities 1 Council area Newcastle Council area based on Australian Bureau of Statistics data (ASGS Edition 3), CC BY 4.0. Postcode 2296 · Postcode 2298