Here is a list of the 67 largest National Wildlife Refuges in the 50 United States. It includes all that are larger than 50,000 acres (200 km²), and excludes those in U.S. territories (also officially in the system). Acreage/Area includes water as well as land areas. Statistics are as of 30 September 2007. The eleven largest NWRs are all in the state of Alaska.