Home Postcode finder NSW Gonn Gonn postcode NSW Gonn is a locality in New South Wales covered by postcode 2732. Postcode 2732 State or territory New South Wales (NSW) Region Vic Far Country Add a free Gonn business listing Be the first listing in Gonn Common questionsWhat is the postcode for Gonn?Gonn, NSW has the postcode 2732.What state is Gonn in?Gonn is in New South Wales (NSW).Does postcode 2732 cover more than one suburb?Yes. Postcode 2732 covers 7 localities, so the postcode alone does not identify Gonn. Browse other postcodes in New South Wales, or widen the search to every Australian postcode.