Home Postcode finder NSW Wondalga Wondalga postcode NSW Wondalga is a locality in New South Wales covered by postcode 2729. Postcode 2729 State or territory New South Wales (NSW) Region Canberra Add a free Wondalga business listing Be the first listing in Wondalga Common questionsWhat is the postcode for Wondalga?Wondalga, NSW has the postcode 2729.What state is Wondalga in?Wondalga is in New South Wales (NSW).Does postcode 2729 cover more than one suburb?Yes. Postcode 2729 covers 17 localities, so the postcode alone does not identify Wondalga. Browse other postcodes in New South Wales, or widen the search to every Australian postcode.