Home Postcode finder NSW Crawford River Crawford River postcode NSW Crawford River is a locality in New South Wales covered by postcode 2423. Postcode 2423 State or territory New South Wales (NSW) Region Hunter Add a free Crawford River business listing Be the first listing in Crawford River Common questionsWhat is the postcode for Crawford River?Crawford River, NSW has the postcode 2423.What state is Crawford River in?Crawford River is in New South Wales (NSW).Does postcode 2423 cover more than one suburb?Yes. Postcode 2423 covers 20 localities, so the postcode alone does not identify Crawford River. Browse other postcodes in New South Wales, or widen the search to every Australian postcode.