Home Postcode finder NT Newcastle Waters Newcastle Waters postcode NT Newcastle Waters is a locality in Northern Territory covered by postcode 0862. Postcode 0862 State or territory Northern Territory (NT) Region Adelaide Add a free Newcastle Waters business listing Be the first listing in Newcastle Waters Common questionsWhat is the postcode for Newcastle Waters?Newcastle Waters, NT has the postcode 0862.What state is Newcastle Waters in?Newcastle Waters is in Northern Territory (NT).Does postcode 0862 cover more than one suburb?Yes. Postcode 0862 covers 17 localities, so the postcode alone does not identify Newcastle Waters. Browse other postcodes in Northern Territory , or widen the search to every Australian postcode.