List of regions of the United States

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

Main article: Geography of the United States

This list of regions of the United States provides links to both interstate and intrastate regions.

[edit] Interstate regions

[edit] Official U.S. regions

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

[edit] Census Bureau-designated areas

US Census Regions and Divisions

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

Region 1 (Northeast)
- Division 1 (New England) Maine, New Hampshire, Vermont, Massachusetts, Rhode Island, Connecticut
- Division 2 (Mid-Atlantic) New York, Pennsylvania, New Jersey
Region 2 (Midwest) (Prior to June 1984, the Midwest Region was designated as the North Central Region.)^[1]
- Division 3 (East North Central) Wisconsin, Michigan, Illinois, Indiana, Ohio
- Division 4 (West North Central) Missouri, North Dakota, South Dakota, Nebraska, Kansas, Minnesota, Iowa
Region 3 (South)
- Division 5 (South Atlantic) Delaware, Maryland, District of Columbia, Virginia, West Virginia, North Carolina, South Carolina, Georgia, Florida
- Division 6 (East South Central) Kentucky, Tennessee, Mississippi, Alabama
- Division 7 (West South Central) Oklahoma, Texas, Arkansas, Louisiana
Region 4 (West)
- Division 8 (Mountain) Idaho, Montana, Wyoming, Nevada, Utah, Colorado, Arizona, New Mexico
- Division 9 (Pacific) Alaska, Washington, Oregon, California, Hawaii

[edit] 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

[edit] 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.

[edit] Time Zones

Main article: Time in the United States

U.S. time zones

[edit] 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 subject matter.

[edit] Unofficial U.S. multi-state regions

[edit] The Belts

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

[edit] Interstate metropolitan areas

[edit] Interstate megalopolises

(Megapolitan area, Megalopolis)

[edit] Intrastate regions

[edit] Alabama

Map of Alabama regions

[edit] Alaska

The Alaska Panhandle

[edit] Arizona

The Arizona Strip

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

[edit] Arkansas

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

[edit] California

[edit] Colorado

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

Central Colorado (part of Southern Rocky Mountains)
Colorado Eastern Plains (part of High Plains and Great Plains)
Colorado Front Range (part of Front Range Urban Corridor)
Colorado Mineral Belt (part of Southern Rocky Mountains)
Colorado Piedmont (contains parts of the Front Range Urban Corridor and High Plains)
Colorado Western Slope (part of Southern Rocky Mountains and Colorado Plateau)
Denver-Aurora Metropolitan Area (part of Front Range Urban Corridor)
High Rockies (part of Southern Rocky Mountains)
Northwestern Colorado (part of Southern Rocky Mountains)
San Luis Valley
South-Central Colorado (part of Front Range Urban Corridor)
Southwestern Colorado (part of Southern Rocky Mountains and Colorado Plateau)

[edit] Connecticut

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.