Home Postcode finder NSW Harefield Harefield postcode NSW Harefield is a locality in New South Wales covered by postcode 2650. Postcode 2650 State or territory New South Wales (NSW) Region Canberra Add a free Harefield business listing Be the first listing in Harefield Common questionsWhat is the postcode for Harefield?Harefield, NSW has the postcode 2650.What state is Harefield in?Harefield is in New South Wales (NSW).Does postcode 2650 cover more than one suburb?Yes. Postcode 2650 covers 52 localities, so the postcode alone does not identify Harefield. Browse other postcodes in New South Wales, or widen the search to every Australian postcode.