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