coonawarra postcode nt Home ›› Postcode Finder ›› NT ›› Coonawarra Coonawarra local listingsThe suburb of Coonawarra is located in NT and has a postcode of 820. Free coonawarra business listing! Get the first free listing in coonawarra! Search and find other Postcodes in Northern Territory or widen the search to Postcodes in Australia.