Home Postcode finder NT Stuart Stuart postcode NT Stuart is a locality in Northern Territory covered by postcode 0870. Postcode 0870 State or territory Northern Territory (NT) Region Adelaide Add a free Stuart business listing Be the first listing in Stuart Common questionsWhat is the postcode for Stuart?Stuart, NT has the postcode 0870.What state is Stuart in?Stuart is in Northern Territory (NT).Does postcode 0870 cover more than one suburb?Yes. Postcode 0870 covers 20 localities, so the postcode alone does not identify Stuart. Browse other postcodes in Northern Territory , or widen the search to every Australian postcode.