Home Postcode finder NSWDL Seven Oaks Seven Oaks postcode NSWDL Seven Oaks is a locality in New South Wales covered by postcode 2440. Postcode 2440 State or territory New South Wales (NSWDL) Region NSW North Coast Add a free Seven Oaks business listing Be the first listing in Seven Oaks Common questionsWhat is the postcode for Seven Oaks?Seven Oaks, NSWDL has the postcode 2440.What state is Seven Oaks in?Seven Oaks is in New South Wales (NSWDL).Does postcode 2440 cover more than one suburb?Yes. Postcode 2440 covers 48 localities, so the postcode alone does not identify Seven Oaks. Browse other postcodes in New South Wales, or widen the search to every Australian postcode.