dunoon postcode nsw Home ›› Postcode Finder ›› NSW ›› Dunoon Dunoon local listingsThe suburb of Dunoon is located in NSW and has a postcode of 2480. Free dunoon business listing! 1Dunoon Public School65 James St 02 66895208 View more business listings in dunoon Search and find other Postcodes in New South Wales or widen the search to Postcodes in Australia.