Home Postcode finder NSW Wadbilliga Wadbilliga postcode NSW Wadbilliga is a locality in New South Wales covered by postcode 2546. Postcode 2546 State or territory New South Wales (NSW) Region NSW Country West Add a free Wadbilliga business listing Be the first listing in Wadbilliga Common questionsWhat is the postcode for Wadbilliga?Wadbilliga, NSW has the postcode 2546.What state is Wadbilliga in?Wadbilliga is in New South Wales (NSW).Does postcode 2546 cover more than one suburb?Yes. Postcode 2546 covers 17 localities, so the postcode alone does not identify Wadbilliga. Browse other postcodes in New South Wales, or widen the search to every Australian postcode.