grahamstown postcode nswrv Home ›› Postcode Finder ›› NSWRV ›› Grahamstown Grahamstown local listingsThe suburb of Grahamstown is located in NSW and has a postcode of 2729. Free grahamstown business listing! Get the first free listing in grahamstown! Search and find other Postcodes in New South Wales or widen the search to Postcodes in Australia.