Home Postcodes by state NSW 2234 Postcode 2234 2234 is the postcode for 7 localities in NSW: Alfords Point, Bangor, Barden Ridge, Illawong, Lucas Heights, Menai and 1 more. Localities with postcode 2234Alfords PointNSWBangorNSWBarden RidgeNSWIllawongNSWLucas HeightsNSWMenaiNSWMenai CentralNSW Postcode 2234 State or territory New South Wales (NSW) Localities 7 Council area Sutherland Council area based on Australian Bureau of Statistics data (ASGS Edition 3), CC BY 4.0. Postcode 2233 · Postcode 2250