koonawarra postcode nsw Home ›› Postcode Finder ›› NSW ›› Koonawarra Koonawarra local listingsThe suburb of Koonawarra is located in NSW and has a postcode of 2530. Free koonawarra business listing! Get the first free listing in koonawarra! Search and find other Postcodes in New South Wales or widen the search to Postcodes in Australia.