Home Postcodes by state NSW 2256 Postcode 2256 2256 is the postcode for 10 localities in NSW: Blackwall, Horsfield Bay, Koolewong, Little Wobby, Patonga, Pearl Beach and 4 more. Localities with postcode 2256BlackwallNSWHorsfield BayNSWKoolewongNSWLittle WobbyNSWPatongaNSWPearl BeachNSWPhegans BayNSWWondabyneNSWWoy WoyNSWWoy Woy BayNSW Postcode 2256 State or territory New South Wales (NSW) Localities 10 Council area Central Coast Council area based on Australian Bureau of Statistics data (ASGS Edition 3), CC BY 4.0. Postcode 2251 · Postcode 2257