Home Postcode finder NSW Green Creek Green Creek postcode NSW Green Creek is a locality in New South Wales covered by postcode 2338. Postcode 2338 State or territory New South Wales (NSW) Region Hunter Add a free Green Creek business listing Be the first listing in Green Creek Common questionsWhat is the postcode for Green Creek?Green Creek, NSW has the postcode 2338.What state is Green Creek in?Green Creek is in New South Wales (NSW).Does postcode 2338 cover more than one suburb?Yes. Postcode 2338 covers 9 localities, so the postcode alone does not identify Green Creek. Browse other postcodes in New South Wales, or widen the search to every Australian postcode.