Home Postcode finder NSW Windowie Windowie postcode NSW Windowie is a locality in New South Wales covered by postcode 2720. Postcode 2720 State or territory New South Wales (NSW) Region Canberra Add a free Windowie business listing Be the first listing in Windowie Common questionsWhat is the postcode for Windowie?Windowie, NSW has the postcode 2720.What state is Windowie in?Windowie is in New South Wales (NSW).Does postcode 2720 cover more than one suburb?Yes. Postcode 2720 covers 28 localities, so the postcode alone does not identify Windowie. Browse other postcodes in New South Wales, or widen the search to every Australian postcode.