Home Postcodes by state NSW 2222 Postcode 2222 2222 is the postcode for Penshurst, NSW. Localities with postcode 2222PenshurstNSW Postcode 2222 State or territory New South Wales (NSW) Localities 1 Council area Georges River Council area based on Australian Bureau of Statistics data (ASGS Edition 3), CC BY 4.0. Postcode 2221 · Postcode 2223