newnes-plateau postcode nsw Home ›› Postcode Finder ›› NSW ›› Newnes-Plateau Newnes Plateau local listingsThe suburb of Newnes Plateau is located in NSW and has a postcode of 2790. Free newnes plateau business listing! Get the first free listing in newnes plateau! Search and find other Postcodes in New South Wales or widen the search to Postcodes in Australia.