koolkhan postcode nsw Home ›› Postcode Finder ›› NSW ›› Koolkhan Koolkhan local listingsThe suburb of Koolkhan is located in NSW and has a postcode of 2460. Free koolkhan business listing! Get the first free listing in koolkhan! Search and find other Postcodes in New South Wales or widen the search to Postcodes in Australia.