Home Postcode finder NT Holmes Holmes postcode NT Holmes is a locality in Northern Territory covered by postcode 0812. Postcode 0812 State or territory Northern Territory (NT) Region Darwin Add a free Holmes business listing Be the first listing in Holmes Common questionsWhat is the postcode for Holmes?Holmes, NT has the postcode 0812.What state is Holmes in?Holmes is in Northern Territory (NT).Does postcode 0812 cover more than one suburb?Yes. Postcode 0812 covers 11 localities, so the postcode alone does not identify Holmes. Browse other postcodes in Northern Territory , or widen the search to every Australian postcode.