Home Postcode finder NSW Dungowan Dungowan postcode NSW Dungowan is a locality in New South Wales covered by postcode 2340. Postcode 2340 State or territory New South Wales (NSW) Region NSW North Coast Add a free Dungowan business listing More business listings in Dungowan Businesses in DungowanDungowan Public SchoolTamworth Rd · 02 67694259 Common questionsWhat is the postcode for Dungowan?Dungowan, NSW has the postcode 2340.What state is Dungowan in?Dungowan is in New South Wales (NSW).Does postcode 2340 cover more than one suburb?Yes. Postcode 2340 covers 39 localities, so the postcode alone does not identify Dungowan. Browse other postcodes in New South Wales, or widen the search to every Australian postcode.