List of regions of the United States

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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[edit]

Census Bureau-designated regions and divisions[edit]

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]

Standard Federal Regions[edit]

Standard federal regions

The ten standard federal regions were established by OMB (Office of Management and Budget) Circular A-105, "Standard Federal Regions", in April 1974, and went into use for all executive agencies. In recent years, some agencies have tailored their field structures to meet program needs and facilitate interaction with local, state, and regional counterparts. However, the OMB must still approve any departures.

Note: OMB Circular A-105 was rescinded on June 8, 1995.[10]

Federal Reserve Banks[edit]

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[edit]

U.S. time zones. (Some U.S. time zones are not on this map.)

Courts of Appeals circuits[edit]

U.S. Courts of Appeals circuits

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

Bureau of Economic Analysis regions[edit]

Bureau of Economic Analysis regions

The Bureau of Economic Analysis defines regions for comparison of economic data.[12]

Energy Information Administration[edit]

The Energy Information Administration currently uses the PADD system established by Petroleum Administration for War in World War II.[13] It is used for data collection on refining petroleum and its products. Each PADD is subdivided into refining districts.

  • PADD I: East Coast
    • East Coast: Maine, New Hampshire, Vermont, Massachusetts, Rhode Island, Connecticut, New Jersey, Delaware, Maryland, Virginia, North Carolina, South Carolina, Georgia, Florida; along with counties in New York east of, north of and including Cayuga, Tompkins, and Chemung; and counties in Pennsylvania east of and including Bradford, Sullivan, Columbia, Montour, Northumberland, Dauphin and York.
    • Appalachian No. 1: West Virginia along with counties of Pennsylvania and New York State not mentioned above.
  • PADD II: Midwest
    • Indiana-Illinois-Kentucky: Indiana, Illinois, Kentucky, Tennessee, Michigan, Ohio
    • Minnesota-Wisconsin-North and South Dakota: Minnesota, Wisconsin, North Dakota, South Dakota
    • Oklahoma-Kansas-Missouri: Oklahoma, Kansas, Missouri, Nebraska, Iowa
  • PADD III: Gulf Coast
    • Texas Gulf Coast: The Texan counties of Newton, Orange, Jefferson, Jasper, Tyler, Hardin, Liberty, Chambers, Polk, San Jacinto, Montgomery, Harris, Galveston, Waller, Fort Bend, Brazoria, Wharton, Matagorda, Jackson, Victoria, Calhoun, Refugio, Aransas, San Patricio, Nueces, Kleberg, Kenedy, Willacy and Cameron
    • Texas Inland: Texan counties not mentioned above.
    • Louisiana Gulf Coast: Parishes of Louisiana south of, and including Vernon, Rapides, Avoyelles, Pointe Coupee, West Feliciana, East Feliciana, Saint Helena, Tangipahoa and Washington; along with Pearl River, Stone, George, Hancock, Harrison, and Jackson County of Mississippi; and Alabama's Mobile and Baldwin County.
    • North Louisiana-Arkansas: Arkansas and parts of Louisiana, Mississippi and Alabama not mentioned above.
    • New Mexico: New Mexico
  • PADD IV: Rocky Mountain: Colorado, Montana, Idaho, Wyoming, Utah
  • PADD V: West Coast: Washington, Oregon, California, Nevada, Arizona, Alaska, Hawaii[14]

PADD I can also be subdivided into 3 Subdistricts:

  • Sub-PAD 1A: New England (Connecticut, Maine, Massachusetts, New Hampshire, Rhode Island, Vermont)
  • Sub-PAD 1B: Central Atlantic (Delaware, Maryland, New Jersey, New York, Pennsylvania, District of Columbia)
  • Sub-PAD 1C: Lower Atlantic (Florida, Georgia, North Carolina, South Carolina, Virginia, West Virginia)[15]
US map of the five ARS regions (USDA)

Agricultural Research Service[edit]

The Agricultural Research Service (ARS) is the research arm of the USDA. The ARS has sectioned their work into five geographic regions:

  • Midwest Area
  • Northeast Area
  • Pacific West Area
  • Plains Area
  • Southeast Area
Map showing the seven regions of the US National Park Service

U.S. National Park Service[edit]

The U.S. National Park Service divides the U.S. into the following regions for U.S. National Park purposes:[16][17]

  • Northeast region (Connecticut, Delaware, Maine, most of Maryland, Massachusetts, New Hampshire, New Jersey, New York, Pennsylvania, Rhode Island, Vermont, most of Virginia, most of West Virginia) with regional office in Philadelphia, Pennsylvania.
  • National Capital region (District of Columbia, some of Maryland, some of Virginia, some of West Virginia) with regional office in Washington D.C.
  • Southeast region (Alabama, Florida, Georgia, Kentucky, Louisiana, Mississippi, North Carolina, South Carolina, Tennessee, Puerto Rico, U.S. Virgin Islands) with regional office in Atlanta, Georgia.
  • Midwest region (Illinois, Indiana, Iowa, Kansas, Michigan, Minnesota, Missouri, Nebraska, North Dakota, Ohio, South Dakota, Wisconsin) with regional office in Omaha, Nebraska.
  • Intermountain region (Arizona, Colorado, Montana, New Mexico, Oklahoma, Texas, Utah, Wyoming) with regional office in Denver, Colorado.
  • Pacific region (California, Hawaii, Idaho, Nevada, Oregon, Washington, American Samoa, Guam, Northern Mariana Islands) with regional office in San Francisco, California.
  • Alaska region (Alaska) with regional office in Anchorage, Alaska.

The U.S. Minor Outlying Islands are not part of any U.S. National Park Service region.

Department of Health and Human Services (HHS) Regions[edit]

The United States Department of Health and Human Services's Office of Intergovernmental and External Affairs hosts 10 Regional Offices.[18] Each office oversees a given region.

  1. Boston: Connecticut, Maine, Massachusetts, New Hampshire, Rhode Island, and Vermont
  2. New York: New Jersey, New York, Puerto Rico, and the Virgin Islands
  3. Philadelphia: Delaware, District of Columbia, Maryland, Pennsylvania, Virginia, and West Virginia
  4. Atlanta: Alabama, Florida, Georgia, Kentucky, Mississippi, North Carolina, South Carolina, and Tennessee
  5. Chicago: Illinois, Indiana, Michigan, Minnesota, Ohio, and Wisconsin
  6. Dallas: Arkansas, Louisiana, New Mexico, Oklahoma, and Texas
  7. Kansas City: Iowa, Kansas, Missouri, and Nebraska
  8. Denver: Colorado, Montana, North Dakota, South Dakota, Utah, and Wyoming
  9. San Francisco: Arizona, California, Hawaii, Nevada, American Samoa, Commonwealth of the Northern Mariana Islands, Federated States of Micronesia, Guam, Marshall Islands, and Republic of Palau
  10. Seattle: Alaska, Idaho, Oregon, and Washington

Unofficial regions[edit]

Multi-state regions[edit]

Multi-territory regions[edit]

The Belts[edit]

Interstate megalopolises[edit]

Interstate metropolitan areas[edit]

Intrastate and intraterritory regions[edit]


A map of Alabama regions.


The Alaska Panhandle

American Samoa[edit]





An enlargeable map of the Front Range Urban Corridor of Colorado and Wyoming.


The Greater Bridgeport Region in relation to other unofficial Connecticut regions.
The Connecticut Panhandle and "The Oblong"

Connecticut has no official regions. After abolishing county governments, all local governing is done by towns and cities, leaving counties as purely geographical and statistical entities. Some unofficial regions of Connecticut include:


"Upstate" or "Up North"

"Slower Lower"

District of Columbia[edit]


The First Coast

Directional regions

Local vernacular regions


Physiographic regions[edit]



Hawaiian archipelago



Southern Illinois is also known as "Little Egypt".


Regions of Indiana


Regions of Iowa.




A map of Louisiana's regions



Maryland's regions

Regions shared with other states:


The Berkshire region of Massachusetts


Michigan's regions

Lower Peninsula[edit]

Upper Peninsula[edit]


Regions of Minnesota






New Hampshire[edit]

New Jersey[edit]

New Mexico[edit]

New York[edit]

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

North Carolina[edit]

Regions of North Carolina.

North Dakota[edit]

Northern Mariana Islands[edit]


  The area roughly covered by the Great Black Swamp



Oregon's topography


Puerto Rico[edit]

Rhode Island[edit]

South Carolina[edit]

South Dakota[edit]

South Dakota
East River and West River



U.S. Minor Outlying Islands[edit]

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

U.S. Virgin Islands[edit]




A map of the Shenandoah Valley


West Virginia[edit]


Wisconsin's five geographic regions

Wisconsin can be divided into five geographic regions.


Other regional listings[edit]

Regions of the Boy Scouts of America[edit]

Boy Scouts of America regions in 1992

5 Geographic Regions[edit]

5 Regions of the United States

A common but unofficial way of referring to regions in the United States is grouping them into 5 regions according to their geographic position on the continent. They are the Northeast, Southeast, Midwest, Southwest, and West.[20][21][22]

See also[edit]


  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[19]
  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


  1. ^ "Statistical Groupings of States and Counties" (PDF). 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. ^ "Rescission of OMB Circulars". Federal Register. March 22, 1995.
  11. ^ "No DST in Most of Arizona". Retrieved August 14, 2020.
  12. ^ "BEA Regions". Bureau of Economic Analysis. February 18, 2004. Retrieved December 27, 2012.
  13. ^ "Records of Petroleum Administration for War". Retrieved January 3, 2012.
  14. ^ "Appedix A: District Description and Maps" (PDF). Energy Information Administration. October 2012. Retrieved January 3, 2012.
  15. ^ "PADD Definitions". Energy Information Administration. Archived from the original on October 16, 2011. Retrieved January 3, 2012.
  16. ^ "Contact Us". U.S. National Park Service Rivers, Trails, and Conservation Assistance Program. Archived from the original on July 5, 2019. Retrieved July 5, 2019.
  17. ^ U.S. National Park Service. Partnerships - Contact Us. Retrieved September 1, 2019.
  18. ^ "HHS Regional Offices". July 10, 2006.
  19. ^ The World Factbook CIA World Factbook - American Samoa. Retrieved July 5, 2019.
  20. ^ "United States Regions". National Geographic. January 3, 2012.
  21. ^ "US Geography regions". Ducksters.
  22. ^ "Regions of the US". Flocabulary.

External links[edit]