Home Postcode finder NT Buchanan Buchanan postcode NT Buchanan is a locality in Northern Territory covered by postcode 0852. Postcode 0852 State or territory Northern Territory (NT) Region Darwin Add a free Buchanan business listing Be the first listing in Buchanan Common questionsWhat is the postcode for Buchanan?Buchanan, NT has the postcode 0852.What state is Buchanan in?Buchanan is in Northern Territory (NT).Does postcode 0852 cover more than one suburb?Yes. Postcode 0852 covers 51 localities, so the postcode alone does not identify Buchanan. Browse other postcodes in Northern Territory , or widen the search to every Australian postcode.