Home Postcodes by state NSW 2030 Postcode 2030 2030 is the postcode for 5 localities in NSW: Dover Heights, Rose Bay North, Vaucluse, Watsons Bay and Hmas Watson. Localities with postcode 2030Dover HeightsNSWHmas WatsonNSWRose Bay NorthNSWVaucluseNSWWatsons BayNSW Postcode 2030 State or territory New South Wales (NSW) Localities 5 Council area Waverley; Mainly Woollahra, partly Waverley; Woollahra Council area based on Australian Bureau of Statistics data (ASGS Edition 3), CC BY 4.0. Postcode 2029 · Postcode 2031