oak-flats postcode nswdl Home ›› Postcode Finder ›› NSWDL ›› Oak-Flats Oak Flats local listingsThe suburb of Oak Flats is located in NSW and has a postcode of 2529. Free oak flats business listing! Get the first free listing in oak flats! Search and find other Postcodes in New South Wales or widen the search to Postcodes in Australia.