Home Postcode finder NSW Goombargana Goombargana postcode NSW Goombargana is a locality in New South Wales covered by postcode 2646. Postcode 2646 State or territory New South Wales (NSW) Region Canberra Add a free Goombargana business listing Be the first listing in Goombargana Common questionsWhat is the postcode for Goombargana?Goombargana, NSW has the postcode 2646.What state is Goombargana in?Goombargana is in New South Wales (NSW).Does postcode 2646 cover more than one suburb?Yes. Postcode 2646 covers 15 localities, so the postcode alone does not identify Goombargana. Browse other postcodes in New South Wales, or widen the search to every Australian postcode.