Home Postcode finder NSW Muscle Creek Muscle Creek postcode NSW Muscle Creek is a locality in New South Wales covered by postcode 2333. Postcode 2333 State or territory New South Wales (NSW) Region Hunter Add a free Muscle Creek business listing Be the first listing in Muscle Creek Common questionsWhat is the postcode for Muscle Creek?Muscle Creek, NSW has the postcode 2333.What state is Muscle Creek in?Muscle Creek is in New South Wales (NSW).Does postcode 2333 cover more than one suburb?Yes. Postcode 2333 covers 14 localities, so the postcode alone does not identify Muscle Creek. Browse other postcodes in New South Wales, or widen the search to every Australian postcode.