Home Postcode finder NSW The Hill The Hill postcode NSW The Hill is a locality in New South Wales covered by postcode 2300. Postcode 2300 State or territory New South Wales (NSW) Region Hunter Add a free The Hill business listing Be the first listing in The Hill Common questionsWhat is the postcode for The Hill?The Hill, NSW has the postcode 2300.What state is The Hill in?The Hill is in New South Wales (NSW).Does postcode 2300 cover more than one suburb?Yes. Postcode 2300 covers 5 localities, so the postcode alone does not identify The Hill. Browse other postcodes in New South Wales, or widen the search to every Australian postcode.