Home Postcode finder NSW Dalton Dalton postcode NSW Dalton is a locality in New South Wales covered by postcode 2581. Postcode 2581 State or territory New South Wales (NSW) Region Canberra Add a free Dalton business listing More business listings in Dalton Businesses in DaltonDalton Public SchoolJobson St · 02 48456210 Common questionsWhat is the postcode for Dalton?Dalton, NSW has the postcode 2581.What state is Dalton in?Dalton is in New South Wales (NSW).Does postcode 2581 cover more than one suburb?Yes. Postcode 2581 covers 17 localities, so the postcode alone does not identify Dalton. Browse other postcodes in New South Wales, or widen the search to every Australian postcode.