Home Postcode finder NSW Dorrigo Mountain Dorrigo Mountain postcode NSW Dorrigo Mountain is a locality in New South Wales covered by postcode 2453. Postcode 2453 State or territory New South Wales (NSW) Region NSW North Coast Add a free Dorrigo Mountain business listing Be the first listing in Dorrigo Mountain Common questionsWhat is the postcode for Dorrigo Mountain?Dorrigo Mountain, NSW has the postcode 2453.What state is Dorrigo Mountain in?Dorrigo Mountain is in New South Wales (NSW).Does postcode 2453 cover more than one suburb?Yes. Postcode 2453 covers 20 localities, so the postcode alone does not identify Dorrigo Mountain. Browse other postcodes in New South Wales, or widen the search to every Australian postcode.