Home Postcodes by state NSW 2063 Postcode 2063 2063 is the postcode for Northbridge, NSW. Localities with postcode 2063NorthbridgeNSW Postcode 2063 State or territory New South Wales (NSW) Localities 1 Council area Willoughby Council area based on Australian Bureau of Statistics data (ASGS Edition 3), CC BY 4.0. Postcode 2062 · Postcode 2064