Home Postcode finder NSW Jincumbilly Jincumbilly postcode NSW Jincumbilly is a locality in New South Wales covered by postcode 2631. Postcode 2631 State or territory New South Wales (NSW) Region Canberra Add a free Jincumbilly business listing Be the first listing in Jincumbilly Common questionsWhat is the postcode for Jincumbilly?Jincumbilly, NSW has the postcode 2631.What state is Jincumbilly in?Jincumbilly is in New South Wales (NSW).Does postcode 2631 cover more than one suburb?Yes. Postcode 2631 covers 12 localities, so the postcode alone does not identify Jincumbilly. Browse other postcodes in New South Wales, or widen the search to every Australian postcode.