berthong postcode nswst Home ›› Postcode Finder ›› NSWST ›› Berthong Berthong local listingsThe suburb of Berthong is located in NSW and has a postcode of 2594. Free berthong business listing! Get the first free listing in berthong! Search and find other Postcodes in New South Wales or widen the search to Postcodes in Australia.