cardiff postcode nsw Home ›› Postcode Finder ›› NSW ›› Cardiff Cardiff local listingsThe suburb of Cardiff is located in NSW and has a postcode of 2285. Free cardiff business listing! 1Cardiff High SchoolBoronia St 02 495499662Cardiff North Public School59 Wansbeck Valley Rd 02 495404043Cardiff Public School64 Macquarie Rd 02 49540475 View more business listings in cardiff Search and find other Postcodes in New South Wales or widen the search to Postcodes in Australia.