List of regions of the United States

This is a list of some of the regions in the United States. Many regions are defined in law or regulations by the federal government.

Interstate regions[edit]

Census Bureau-designated regions and divisions[edit]

U.S. Census Bureau Regions and Divisions.

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

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Puerto Rico and other US territories are not part of any census region or census division.[7]

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 required 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.

  • Region I: Connecticut, Maine, Massachusetts, New Hampshire, Rhode Island, Vermont
  • Region II: New Jersey, New York, Puerto Rico, US Virgin Islands
  • Region III: Delaware, District of Columbia, Maryland, Pennsylvania, Virginia, West Virginia
  • Region IV: Alabama, Florida, Georgia, Kentucky, Mississippi, North Carolina, South Carolina, Tennessee
  • Region V: Illinois, Indiana, Michigan, Minnesota, Ohio, Wisconsin
  • Region VI: Arkansas, Louisiana, New Mexico, Oklahoma, Texas
  • Region VII: Iowa, Kansas, Missouri, Nebraska
  • Region VIII: Colorado, Montana, North Dakota, South Dakota, Utah, Wyoming
  • Region IX: Arizona, California, Hawaii, Nevada, American Samoa, Guam, Northern Mariana Islands
  • Region X: Alaska, Idaho, Oregon, Washington

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, as some states are divided into 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.

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 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.[8]

Energy Information Administration[edit]

The Energy Information Administration currently uses the PADD system established by Petroleum Administration for War in World War II.[9] 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[10]

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)[11]

Agricultural Research Service[edit]

US map of the five ARS regions (USDA)

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.

Unofficial multi-state and multi-territory regions[edit]

There are also multi-territory regions:

The Belts[edit]

Interstate metropolitan areas[edit]

Interstate megalopolises[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 location to other officially recognized Connecticut regions with regional governments.

The Connecticut Panhandle and “The Oblong”.

In Connecticut, there are 14 official regions, each with a regional government that serves for the absence of county government in Connecticut. There are also a fair number of unofficial regions in Connecticut with no regional government.


“Upstate” or “Up North”

“Slower Lower”

District of Columbia[edit]

See Neighborhoods of the District of Columbia


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.



The map provides references for the descriptions below. Some are geologic regions and some are geographic, so many of them overlap.

  • The Bluegrass, in the north-central part of the state, where the bedrock is of Ordovician age, the oldest in Kentucky. The Inner Bluegrass, visible on a more detailed geologic map of the state, is the site of Thoroughbred horse farms. The Outer Bluegrass is hillier and its dominant livestock is beef cattle.
  • Central Kentucky is an often-used but ill-defined term. It is safely applied to any place between Lexington/Fayette, Hustonville in southern Lincoln County and Elizabethtown in Hardin County.
  • Cumberland Plateau or Eastern Coal Field, with bedrock of Pennysylvanian age. When people say “Eastern Kentucky,” this is usually what they mean.
  • Jackson Purchase Generally, the area west of the Tennessee River, purchased from the Chickasaw Indians by Gen. Andrew Jackson and former Kentucky Gov. Isaac Shelby in 1818. Geologically, it is part of the Mississippi Embayment.
  • Kentucky Bend is the exclave formed by the Mississippi River and the westward extension of the boundary with Tennessee. It is not a region but part of the Jackson Purchase.
  • The Knobs are conical hills and hogback ridges that lie east, south and west of the Bluegrass, demarcated in the western half by Muldraugh’s Hill, a large escarpment. A major bedrock unit is Devonian oil shale, red on the map. It also has rocks of Silurian age.
  • Northern Kentucky is usually defined as the three northernmost counties and the urbanized areas of those that border them. It is part of the Cincinnati metropolitan area.
  • Pennyroyal Plateau Called the Pennyrile in Western Kentucky, it was named for a wild mint that grows there. It has three sections: eastern, running east from a few miles east of Glasgow in Barren County; west, running from there to the Tennessee and Ohio rivers; and the north section, north of a narrow, spotty salient of the Clifty Area that ends at Frenchman Knob near Bonnieville in northern Hart County. This region is the one most dominated by karst topography: sinkholes and underground water channels. These rocks are of Mississippian age; a region of Mississipian rock that runs between the Knobs and the Cumberland Plateau is not considered part of the Pennyroyal, but a transitional zone. (The counties with the greatest expanse of this narrow zone, Lewis and Rowan, are usually defined as part of northeastern Kentucky, along with the five coalfield counties to the east.)
  • South Central Kentucky or (more recently) Southern Kentucky: Generally, the eastern Pennyroyal and an area to the west, ending around Auburn in Logan County. To the west, large row-crop agriculture dominates, and people are more likely to say they live in Western Kentucky.
  • Western Coal Field also includes the Clifty Area, which contains no coal but is also of Pennsylvanian age. Place names include Clifty in Todd County and Big Clifty in Grayson County.
  • Western Kentucky: A line drawn north from Auburn reaches the Ohio River in Hancock County, which is generally thought of as part of Western Kentucky. The term “West Kentucky” is often used, mainly by people who live west of Princeton in Caldwell County.


A map of Louisiana’s regions.



Maryland’s regions.

Regions shared with other states:


The Berkshire region of Massachusetts.


Michigan’s regions.


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]

Travel/Tourism locations

Other geographical distinctions

South Dakota[edit]

South Dakota
East River and West River


Other geographical distinctions:


U.S. Minor Outlying Islands[edit]

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



Virgin Islands[edit]


A map of the Shenandoah Valley.


West Virginia[edit]


Wisconsin geographic provinces.svg

Wisconsin can be divided into five geographic regions.


Other regional listings[edit]

Boy Scouts of America regions in 1992

Regions of the Boy Scouts of America

See also[edit]


  1. ^ This region also includes independent Samoa, which is not part of the United States
  2. ^ This region also includes the British Virgin Islands, which is not part of the United States
  3. ^ Claimed by Tokelau
  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. ^ United States Census Bureau, Geography Division. “Census Regions and Divisions of the United States” (PDF). Retrieved 2013-01-10.
  2. ^ “The National Energy Modeling System: An Overview 2003” (Report #:DOE/EIA-0581, October 2009). United States Department of Energy, Energy Information Administration.
  3. ^ “The most widely used regional definitions 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.
  4. ^ “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
  5. ^ “(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
  6. ^ “Census Bureau Regions and Divisions with State FIPS Codes” (PDF). US Census Bureau. Archived from the original (PDF) on 21 September 2013. Retrieved 20 June 2010.
  7. ^ “Geographic Terms and Concepts – Census Divisions and Census Regions”. US Census Bureau. Retrieved 19 August 2015.
  8. ^ “BEA Regions”. Bureau of Economic Analysis. February 18, 2004. Retrieved December 27, 2012.
  9. ^ “Records of Petroleum Administration for War”. Retrieved January 3, 2012.
  10. ^ “Appedix A: District Description and Maps” (PDF). Energy Information Administration. October 2012. Retrieved January 3, 2012.
  11. ^ “PADD Definitions”. Energy Information Administration. Archived from the original on October 16, 2011. Retrieved January 3, 2012.

External links[edit]