wallarobba postcode nsw Home ›› Postcode Finder ›› NSW ›› Wallarobba Wallarobba local listingsThe suburb of Wallarobba is located in NSW and has a postcode of 2420. Free wallarobba business listing! Get the first free listing in wallarobba! Search and find other Postcodes in New South Wales or widen the search to Postcodes in Australia.