0 Puerto Rico and the Island Areas U.S. Census Bureau 1 New England U.S. Census Bureau 2 Middle Atlantic U.S. Census Bureau 3 East North Central U.S. Census Bureau 4 West North Central U.S. Census Bureau 5 South Atlantic U.S. Census Bureau 6 East South Central U.S. Census Bureau 7 West South Central U.S. Census Bureau 8 Mountain U.S. Census Bureau 9 Pacific U.S. Census Bureau