north-wahroonga postcode nswst Home ›› Postcode Finder ›› NSWST ›› North-Wahroonga North Wahroonga local listingsThe suburb of North Wahroonga is located in NSW and has a postcode of 2076. Free north wahroonga business listing! Get the first free listing in north wahroonga! Search and find other Postcodes in New South Wales or widen the search to Postcodes in Australia.