Home Postcode finder NSW Thumb Creek Thumb Creek postcode NSW Thumb Creek is a locality in New South Wales covered by postcode 2447. Postcode 2447 State or territory New South Wales (NSW) Region NSW North Coast Add a free Thumb Creek business listing Be the first listing in Thumb Creek Common questionsWhat is the postcode for Thumb Creek?Thumb Creek, NSW has the postcode 2447.What state is Thumb Creek in?Thumb Creek is in New South Wales (NSW).Does postcode 2447 cover more than one suburb?Yes. Postcode 2447 covers 19 localities, so the postcode alone does not identify Thumb Creek. Browse other postcodes in New South Wales, or widen the search to every Australian postcode.