seven-oaks postcode nswrv Home ›› Postcode Finder ›› NSWRV ›› Seven-Oaks Seven Oaks local listingsThe suburb of Seven Oaks is located in NSW and has a postcode of 2440. Free seven oaks business listing! Get the first free listing in seven oaks! Search and find other Postcodes in New South Wales or widen the search to Postcodes in Australia.