Home Postcodes by state NSW 2505 Postcode 2505 2505 is the postcode for Port Kembla, NSW. Localities with postcode 2505Port KemblaNSW Postcode 2505 State or territory New South Wales (NSW) Localities 1 Council area Wollongong Council area based on Australian Bureau of Statistics data (ASGS Edition 3), CC BY 4.0. Postcode 2502 · Postcode 2506