Home Postcodes by state NSW 2530 Postcode 2530 2530 is the postcode for 14 localities in NSW: Avondale, Brownsville, Cleveland, Dapto, Dombarton, Haywards Bay and 8 more. Localities with postcode 2530AvondaleNSWBrownsvilleNSWClevelandNSWDaptoNSWDombartonNSWHaywards BayNSWHorsleyNSWHuntleyNSWKanahookaNSWKoonawarraNSWMarshall MountNSWPenroseNSWWongawilliNSWYallahNSW Postcode 2530 State or territory New South Wales (NSW) Localities 14 Council area Wollongong Council area based on Australian Bureau of Statistics data (ASGS Edition 3), CC BY 4.0. Postcode 2529 · Postcode 2533