south-grafton postcode nswst Home ›› Postcode Finder ›› NSWST ›› South-Grafton South Grafton local listingsThe suburb of South Grafton is located in NSW and has a postcode of 2460. Free south grafton business listing! Get the first free listing in south grafton! Search and find other Postcodes in New South Wales or widen the search to Postcodes in Australia.