Home Postcode finder NSW Dombarton Dombarton postcode NSW Dombarton is a locality in New South Wales covered by postcode 2530. Postcode 2530 State or territory New South Wales (NSW) Region Illawarra Add a free Dombarton business listing Be the first listing in Dombarton Common questionsWhat is the postcode for Dombarton?Dombarton, NSW has the postcode 2530.What state is Dombarton in?Dombarton is in New South Wales (NSW).Does postcode 2530 cover more than one suburb?Yes. Postcode 2530 covers 14 localities, so the postcode alone does not identify Dombarton. Browse other postcodes in New South Wales, or widen the search to every Australian postcode.