Home Postcode finder NSW Wollun Wollun postcode NSW Wollun is a locality in New South Wales covered by postcode 2354. Postcode 2354 State or territory New South Wales (NSW) Region NSW North Coast Add a free Wollun business listing Be the first listing in Wollun Common questionsWhat is the postcode for Wollun?Wollun, NSW has the postcode 2354.What state is Wollun in?Wollun is in New South Wales (NSW).Does postcode 2354 cover more than one suburb?Yes. Postcode 2354 covers 9 localities, so the postcode alone does not identify Wollun. Browse other postcodes in New South Wales, or widen the search to every Australian postcode.