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; others by shared culture and history; and others by economic factors.

Interstate regions

Census Bureau-designated regions and divisions

The United States Census Bureau defines four statistical regions, with nine divisions. The Census Bureau region definition is "widely used... for data collection and analysis", and is the most commonly used classification system.
Puerto Rico and other US territories are not part of any census region or census division.

Standard Federal Regions

The ten standard federal regions were established by OMB 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.
Note: OMB Circular A-105 was rescinded on June 8, 1995.

Federal Reserve Banks

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

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

Bureau of Economic Analysis regions

The Bureau of Economic Analysis defines regions for comparison of economic data.
The Energy Information Administration currently uses the PADD system established by Petroleum Administration for War in World War II. It is used for data collection on refining petroleum and its products. Each PADD is subdivided into refining districts.
PADD I can also be subdivided into 3 Subdistricts:

Agricultural Research Service

The Agricultural Research Service is the research arm of the USDA. The ARS has sectioned their work into five geographic regions:
The U.S. National Park Service divides the U.S. into the following regions for U.S. National Park purposes:
The U.S. Minor Outlying Islands are not part of any U.S. National Park Service region.

Unofficial multi-state and multi-territory regions

There are also multi-territory regions:

Alabama

Colorado

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"

Florida

Directional regions
Local vernacular regions

Indiana

Regions shared with other states:

Lower Peninsula

Missouri

U.S. Minor Outlying Islands

Wisconsin

Wisconsin can be divided into five geographic regions.

Other regional listings

Regions of the Boy Scouts of America