Home Postcode finder NSW Gidginbung Gidginbung postcode NSW Gidginbung is a locality in New South Wales covered by postcode 2666. Postcode 2666 State or territory New South Wales (NSW) Region Canberra Add a free Gidginbung business listing Be the first listing in Gidginbung Common questionsWhat is the postcode for Gidginbung?Gidginbung, NSW has the postcode 2666.What state is Gidginbung in?Gidginbung is in New South Wales (NSW).Does postcode 2666 cover more than one suburb?Yes. Postcode 2666 covers 14 localities, so the postcode alone does not identify Gidginbung. Browse other postcodes in New South Wales, or widen the search to every Australian postcode.