List of regions of the United States

List of regions of the United States
The four United States Census Bureau regions separated by color, with the nine divisions further separated by shading.

The 'List of regions of the United States provides links to both interstate and intrastate regions.


Interstate regions

Official U.S. regions

Many regions in the United States are defined in law or regulations by the federal government.

Census Bureau-designated areas

US Census Regions and Divisions

Regional divisions used by the United States Census Bureau:[1]

Standard Federal Regions

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, 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, Trust Territory of the Pacific Islands)
  • Region X: Alaska, Idaho, Oregon, Washington

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.

Time Zones

U.S. time zones

Courts of Appeals circuits

U.S. Courts of Appeals circuits

Unofficial U.S. multi-state regions

The Belts

Interstate metropolitan areas

Interstate megalopolises

(Megapolitan area, Megalopolis)

Intrastate regions


Map of Alabama regions


The Alaska Panhandle


The Arizona Strip


  • Northern Arkansas
  • Crowley's Ridge
  • the Delta
  • Northwest Arkansas
  • Central Arkansas
  • the River Valley
  • Southern Arkansas



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


Greater Bridgeport Region in location to other officially recognized Connecticut regions with regional governments.
Connecticut Panhandle and "The Oblong"

In Connecticut, there are 15 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.



The First Coast
Florida Panhandle


Physiographic Regions of Georgia



Idaho Panhandle


Southern Illinois is also known as "Little Egypt".


Regions of Indiana




Kentucky's regions (click on image for color coding information.)


Map of Louisiana regions



Geographic regions of Maryland


Berkshire region of Massachusetts


Lower Peninsula of Michigan
Upper Peninsula of Michigan


Regions of Minnesota



Missouri Bootheel



Nebraska Panhandle


New Hampshire

New Jersey

New Mexico

New York

Regions of New York as defined by the New York State Department of Economic Development

North Carolina

NC regions.png

North Dakota


  The area roughly coboured by the Great Black Swamp


Oklahoma Panhandle


Oregon topography
Oregon's high desert county


Rhode Island

South Carolina

Major Regions

Travel/Tourism Regions

Geographical Regions

Other Regions

South Dakota


Grand Divisions

Geographic Divisions


Texas Panhandle




Map of the Shenandoah Valley


West Virginia


Door Peninsula


See also


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