Home Postcode finder NSW Bundook Bundook postcode NSW Bundook is a locality in New South Wales covered by postcode 2422. Postcode 2422 State or territory New South Wales (NSW) Region Hunter Add a free Bundook business listing Be the first listing in Bundook Common questionsWhat is the postcode for Bundook?Bundook, NSW has the postcode 2422.What state is Bundook in?Bundook is in New South Wales (NSW).Does postcode 2422 cover more than one suburb?Yes. Postcode 2422 covers 45 localities, so the postcode alone does not identify Bundook. Browse other postcodes in New South Wales, or widen the search to every Australian postcode.