| East South Central | Alabama, Kentucky, Mississippi, Tennessee |
| Midwest | Illinois, Indiana, Iowa, Kansas, Michigan, Minnesota, Missouri, Nebraska, North Dakota, Ohio, South Dakota, Wisconsin |
| Mountain | Arizona, Colorado, Idaho, Montana, Nevada, New Mexico, Utah, Wyoming |
| Northeast | Connecticut, Maine, Massachusetts, New Hampshire, New Jersey, New York, Pennsylvania, Rhode Island, Vermont |
| Pacific | Alaska, California, Hawaii, Oregon, Washington |
| South Atlantic | Delaware, District of Columbia, Florida, Georgia, Maryland, North Carolina, South Carolina, Virginia, West Virginia |
| West South Central | Arkansas, Louisiana, Oklahoma, Texas |