List of regions of the United States

This is a list of some of the ways regions are defined in the United States. Many regions are defined in law or regulations by the federal government; others by shared culture and history, and others by economic factors.

Interstate regions

Census Bureau–designated regions and divisions
U.S. Census Bureau Regions and Divisions.

Since 1950, the United States Census Bureau defines four statistical regions, with nine divisions.[1][2] The Census Bureau region definition is "widely used ... for data collection and analysis",[3] and is the most commonly used classification system.[4][5][6][7]

Puerto Rico and other US territories are not part of any census region or census division.[9]

Federal Reserve Banks
Federal Reserve districts.

The Federal Reserve Act of 1913 divided the country into twelve districts with a central Federal Reserve Bank in each district. These twelve Federal Reserve Banks together form a major part of the Federal Reserve System, the central banking system of the United States. Missouri is the only U.S. state to have two Federal Reserve locations within its borders, but several other states are also divided between more than one district.

  1. Boston
  2. New York
  3. Philadelphia
  4. Cleveland
  5. Richmond
  6. Atlanta
  7. Chicago
  8. St. Louis
  9. Minneapolis
  10. Kansas City
  11. Dallas
  12. San Francisco

Time zones
Main article: Time in the United States
U.S. time zones. (Some U.S. time zones are not on this map.)

Courts of Appeals circuits
Main article: United States courts of appeals
U.S. Courts of Appeals circuits

The Federal Circuit is not a regional circuit. Its jurisdiction is nationwide but based on the subject matter.

Agency administrative regions

In 1969, the Office of Management and Budget published a list of ten "Standard Federal Regions",[11] to which Federal agencies could be restructured as a means of standardizing government administration nationwide. Despite a finding in 1977 that this restructuring did not reduce administrative costs as initially expected,[12] and the complete rescinding of the standard region system in 1995,[13] several agencies continue to follow the system, including the Environmental Protection Agency[14] and the Department of Housing and Urban Development.[15]

Regions and office locations
Regions of the U.S. EPA
Region I

Office location: Boston

States: Connecticut, Maine, Massachusetts, New Hampshire, Rhode Island, and Vermont

Region II

Office location: New York City

States: New York, New Jersey, Puerto Rico, and the Virgin Islands

Region III

Office location: Philadelphia

States: Delaware, District of Columbia, Maryland, Pennsylvania, Virginia, and West Virginia

Region IV

Office location: Atlanta

States: Alabama, Florida, Georgia, Kentucky, Mississippi, North Carolina, South Carolina, and Tennessee

Region V

Office location: Chicago

States: Illinois, Indiana, Minnesota, Michigan, Ohio, and Wisconsin

Region VI

Office location: Dallas

States: Arkansas, Louisiana, New Mexico, Oklahoma, and Texas

Region VII

Office location: Kansas City

States: Iowa, Kansas, Missouri, and Nebraska

Region VIII

Office location: Denver

States: Colorado, Montana, North Dakota, South Dakota, Utah, and Wyoming

Region IX

Office location: San Francisco

States: Arizona, California, Hawaii, Nevada, Guam, and American Samoa

Region X

Office location: Seattle

States: Alaska, Idaho, Oregon, and Washington

Bureau of Economic Analysis regions
Bureau of Economic Analysis regions

The Bureau of Economic Analysis defines regions for comparison of economic data.[16]

Unofficial regions

Multi-state regions

Multi-territory regions

The Belts
For a more comprehensive list, see List of belt regions of the United States.

Interstate megalopolises
See also: Megaregions of the United States
Further information: Megalopolis

Interstate metropolitan areas
See also: Tri-state area

Intrastate and intraterritory regions

Alabama
A map of Alabama regions.

Alaska
The Alaska Panhandle

American Samoa
American Samoa

Arizona
For a more comprehensive list, see List of regions of Arizona.
The Arizona Strip

Arkansas
Regions of Arkansas

California
For a more comprehensive list, see List of regions of California.

Colorado
Main article: Geography of Colorado
An enlargeable map of the Front Range Urban Corridor of Colorado and Wyoming.

Connecticut
For a more comprehensive list, see Councils of governments in Connecticut.
Map highlighting the 9 official regions of Connecticut

Connecticut has 9 official planning regions. These regions operate as councils of governments, and are recognized as county equivalents by the U.S. Census Bureau.

Some of Connecticut's informal regions include:

Delaware
The Delaware Valley

"Upstate" or "Up North"

"Slower Lower"

District of Columbia
Main article: Neighborhoods in Washington, D.C.

Florida
The First Coast
The Florida Panhandle

Directional regions

Local vernacular regions

Georgia

Physiographic regions

Guam
Hawaiian archipelago
Main Hawaiian Islands

Hawaii

Idaho
The Idaho Panhandle

Illinois
Main article: Regions of Illinois
Southern Illinois is also known as "Little Egypt".

Indiana
Main article: Geography of Indiana
Regions of Indiana

Iowa
Regions of Iowa.

Kansas

Kentucky

Louisiana
A map of Louisiana's regions

Maine

Maryland
Maryland's regions

Regions shared with other states:

Massachusetts
The Berkshire region of Massachusetts

Michigan
Main article: Geography of Michigan
Michigan's regions

Lower Peninsula
Main article: Lower Peninsula of Michigan

Upper Peninsula
Main article: Upper Peninsula of Michigan

Minnesota
Main article: Geography of Minnesota
Regions of Minnesota

Mississippi

Missouri
The Missouri Bootheel

Montana

Nebraska
The Nebraska Panhandle

Nevada

New Hampshire

New Jersey

New Mexico

New York
Regions of New York as defined by the New York State Department of Economic Development.
1. Western New York – counties: Niagara, Erie, Chautauqua, Cattaraugus, Allegany
2. Finger Lakes – counties: Orleans, Genesee, Wyoming, Monroe, Livingston, Wayne, Ontario, Yates, Seneca
3. Southern Tier – counties: Steuben, Schuyler, Chemung, Tompkins, Tioga, Chenango, Broome, Delaware
4. Central New York – counties: Cortland, Cayuga, Onondaga, Oswego, Madison
5. North Country – counties : St. Lawrence, Lewis, Jefferson, Hamilton, Essex, Clinton, Franklin
6. Mohawk Valley – counties: Oneida, Herkimer, Fulton, Montgomery, Otsego, Schoharie
7. Capital District – counties : Albany, Columbia, Greene, Warren, Washington, Saratoga, Schenectady, Rensselaer
8. Hudson Valley – counties: Sullivan, Ulster, Dutchess, Orange, Putnam, Rockland, Westchester
9. New York City – counties (boroughs): New York (Manhattan), Bronx (The Bronx), Queens (Queens), Kings (Brooklyn), Richmond (Staten Island)
10. Long Island – counties: Nassau, Suffolk

North Carolina
Regions of North Carolina.

North Dakota

Northern Mariana Islands
Northern Mariana Islands

Ohio
  The area roughly covered by the Great Black Swamp

Oklahoma
The Oklahoma Panhandle

Oregon
Main article: List of regions of Oregon
Oregon's topography
Oregon's High Desert

Pennsylvania
Main article: Regions of Pennsylvania

Puerto Rico
Puerto Rico

Rhode Island

South Carolina

South Dakota
South Dakota
East River and West River

Tennessee
Main article: Grand Divisions of Tennessee

Texas
Main article: List of geographical regions in Texas
The Texas Panhandle

U.S. Minor Outlying Islands
The United States Minor Outlying Islands (Navassa Island not on map)

U.S. Virgin Islands

Utah

Vermont

Virginia
A map of the Shenandoah Valley

Washington

West Virginia

Wisconsin
Wisconsin's five geographic regions

Wisconsin can be divided into five geographic regions.

Wyoming

See also

Explanatory notes
    1. This region also includes the Independent State of Samoa, which is not a part of the United States
    2. This region also includes the British Virgin Islands, which is not a part of the United States
    3. Claimed by Tokelau[17]
    4. Midway Atoll, part of the Northwest Hawaiian Islands, is not politically part of Hawaii; it is one of the United States Minor Outlying Islands
    5. Claimed by Haiti
    6. Claimed by the Marshall Islands

    References
    1. "Statistical Groupings of States and Counties" (PDF). census.gov. United States Census Bureau. Retrieved December 16, 2020.
    2. United States Census Bureau, Geography Division. "Census Regions and Divisions of the United States" (PDF). Retrieved January 10, 2013.
    3. "The National Energy Modeling System: An Overview 2003" (Report #: DOE/EIA-0581, October 2009). United States Department of Energy, Energy Information Administration.
    4. "The most widely used regional definitions and follow those of the U.S. Bureau of the Census." Seymour Sudman and Norman M. Bradburn, Asking Questions: A Practical Guide to Questionnaire Design (1982). Jossey-Bass: p. 205.
    5. "Perhaps the most widely used regional classification system is one developed by the U.S. Census Bureau." Dale M. Lewison, Retailing, Prentice Hall (1997): p. 384. ISBN 978-0-13-461427-4
    6. "[M]ost demographic and food consumption data are presented in this four-region format." Pamela Goyan Kittler, Kathryn P. Sucher, Food and Culture, Cengage Learning (2008): p.475. ISBN 9780495115410
    7. "Census Bureau Regions and Divisions with State FIPS Codes" (PDF). US Census Bureau. Archived from the original (PDF) on September 21, 2013. Retrieved June 20, 2010.
    8. "Census Bureau Regions and Divisions with State FIPS Codes" (PDF). US Census Bureau. Archived from the original (PDF) on September 21, 2013. Retrieved June 20, 2010.
    9. "Geographic Terms and Concepts - Census Divisions and Census Regions". US Census Bureau. Retrieved August 19, 2015.
    10. "No DST in Most of Arizona". www.timeanddate.com. Retrieved August 14, 2020.
    11. Standard Federal Regions, Office of Management and Budget, 1969, Circular A-105
    12. Office of Management and Budget (August 17, 1977), Standardized Federal Regions: Little Effect on Agency Management of Personnel, Government Accountability Office, FPCD-77-39
    13. 60 FR 15171
    14. Williams, Dennis C. (March 1993), Why Are Our Regional Offices and Labs Located Where They Are? A Historical Perspective on Siting, U.S. Environmental Protection Agency
    15. HUD's Regions, U.S. Department of Housing and Urban Development
    16. "BEA Regions". Bureau of Economic Analysis. February 18, 2004. Retrieved December 27, 2012.
    17. The World Factbook CIA World Factbook - American Samoa. Retrieved July 5, 2019.
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