doubtful-creek postcode nswrv Home ›› Postcode Finder ›› NSWRV ›› Doubtful-Creek Doubtful Creek local listingsThe suburb of Doubtful Creek is located in NSW and has a postcode of 2470. Free doubtful creek business listing! Get the first free listing in doubtful creek! Search and find other Postcodes in New South Wales or widen the search to Postcodes in Australia.