Home Postcodes by state NSW 2106 Postcode 2106 2106 is the postcode for 2 localities in NSW: Newport and Newport Beach. Localities with postcode 2106NewportNSWNewport BeachNSW Postcode 2106 State or territory New South Wales (NSW) Localities 2 Council area Northern Beaches Council area based on Australian Bureau of Statistics data (ASGS Edition 3), CC BY 4.0. Postcode 2105 · Postcode 2107