What are the 10 Regions of the World?

The OMB has established ten standard Federal Regions of the United States:

Region I(1): Connecticut, Maine, Massachusetts, New Hampshire, Rhode Island, Vermont

Region II(2): New Jersey, New York, (Puerto Rico, Virgin Islands)

Region III(3): Delaware, Maryland, Pennsylvania, Virginia, West Virginia, (District of Columbia)

Region IV(4): Alabama, Florida, Georgia, Kentucky, Mississippi, North Carolina, South Carolina, Tennessee

Region V(5):Illinois, Indiana, Michigan, Minnesota, Ohio, Wisconsin

Region VI(6): Arkansas, Louisiana, New Mexico, Oklahoma, Texas

Region VII(7): Iowa, Kansas, Missouri, Nebraska

Region VIII(8): Colorado, Montana, North Dakota, South Dakota, Utah, Wyoming

Region IX(9): Arizona, California, Hawaii, Nevada (American Samoa, Guam, Northern Mariana Islands, Trust Territory of the Pacific Islands)

Region X(10): Alaska, Idaho, Oregon, Washington