lake-wyangan postcode nswst Home ›› Postcode Finder ›› NSWST ›› Lake-Wyangan Lake Wyangan local listingsThe suburb of Lake Wyangan is located in NSW and has a postcode of 2680. Free lake wyangan business listing! Get the first free listing in lake wyangan! Search and find other Postcodes in New South Wales or widen the search to Postcodes in Australia.