Region 1: Pacific includes American Samoa, Guam, Hawaii, Idaho, Northern Mariana Islands, Oregon and Washington.
Region 2: Southwest includes Arizona, New Mexico, Oklahoma and Texas.
Region 3: Midwest includes Illinois, Indiana, Iowa, Michigan, Minnesota, Missouri, Ohio and Wisconsin.
Region 4: Southeast includes Alabama, Arkansas, Florida, Georgia, Kentucky, Louisiana, Mississippi, North Carolina, South Carolina, Tennessee, Puerto Rico and the Virgin Islands.
Region 5: Northeast includes Connecticut, Delaware, District of Columbia, Maine, Maryland, Massachusetts, New Hampshire, New Jersey, New York, Pennsylvania, Rhode Island, Vermont, Virginia and West Virginia.
Region 6: Mountain-Prairie includes Colorado, Kansas, Montana, Nebraska, North Dakota, South Dakota, Utah and Wyoming.
Region 7: Alaska
Region 8: Pacific Southwest includes California, Nevada and the Klamath Basin in southern Oregon.