List of regions of the United States
Encyclopedia : L : LI : LIS : List of regions of the United States
This list of regions of the United States includes official (governmental) and non-official areas within the borders of the United States, not including U.S. states, the federal district of Washington, D.C. or standard subentities such as cities or counties. Defunct, extinct or archaic regions are described in historic regions of the United States. (See also: )
- 1 Interstate regions
- 1.1 Official U.S. regions
- 1.1.1 Bureau of Reclamation Regions
- 1.1.2 Census Bureau-designated areas
- 1.1.3 Standard Federal Regions
- 1.1.4 Time Zones
- 1.1.5 Judicial circuits
- 1.1.6 Federal Reserve banks
- 1.2 Unofficial U.S. regions
- 2 Intrastate regions
- 2.3 Alabama
- 2.4 Alaska
- 2.5 Arizona
- 2.6 Arkansas
- 2.7 California
- 2.8 Colorado
- 2.9 Connecticut
- 2.10 Delaware
- 2.11 Florida
- 2.12 Georgia
- 2.13 Hawaii
- 2.14 Idaho
- 2.15 Illinois
- 2.16 Indiana
- 2.17 Iowa
- 2.18 Kansas
- 2.19 Kentucky
- 2.20 Louisiana
- 2.21 Maine
- 2.22 Maryland
- 2.23 Massachusetts
- 2.24 Michigan
- 2.25 Minnesota
- 2.26 Mississippi
- 2.27 Missouri
- 2.28 Montana
- 2.29 Nebraska
- 2.30 Nevada
- 2.31 New Hampshire
- 2.32 New Jersey
- 2.33 New Mexico
- 2.34 New York
- 2.35 North Carolina
- 2.36 North Dakota
- 2.37 Ohio
- 2.38 Oklahoma
- 2.39 Oregon
- 2.40 Pennsylvania
- 2.41 Rhode Island
- 2.42 South Carolina
- 2.43 South Dakota
- 2.44 Tennessee
- 2.45 Texas
- 2.46 Utah
- 2.47 Vermont
- 2.48 Virginia
- 2.49 Washington
- 2.50 West Virginia
- 2.51 Wisconsin
- 2.52 Wyoming
- 3 See also
Interstate regions
Official U.S. regions
Regions defined in law or regulations by the federal government.Bureau of Reclamation Regions
The Bureau of Reclamation divides the western United States into five regions:
- Great Plains Region - Billings, Montana
- Lower Colorado Region - Boulder City, Nevada
- Mid-Pacific Region - Sacramento, California
- Pacific Northwest Region - Boise, Idaho
- Upper Colorado Region - Salt Lake City, Utah
Census Bureau-designated areas
Regional divisions used by the United States Census Bureau
- Region 1 (Northeast)
- *Division 1 (New England)
- *Division 2 (Middle Atlantic)
- Region 2 (Central)
- *Division 3 (East North Central)
- *Division 4 (West North Central)
- Region 3 (South)
- *Division 5 (South Atlantic)
- *Division 6 (East South Central)
- *Division 7 (West South Central)
- Region 4 (West)
- *Division 8 (Mountain)
- *Division 9 (Pacific)
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. The OMB must still approve any departures, however.
- Region I: Connecticut, Maine, Massachusetts, New Hampshire, Rhode Island, Vermont
- Region II: New Jersey, New York, Puerto Rico, Virgin Islands
- Region III: Delaware, 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, Texas, Oklahoma
- 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
Time Zones
Main article: United States time zones
- Hawaii-Aleutian Standard Time Zone
- Alaska Standard Time Zone
- Pacific Standard Time Zone
- Mountain Standard Time Zone
- Central Standard Time Zone
- Eastern Standard Time Zone
Judicial circuits
As designated by Congress, the federal court system is divided into eleven judicial circuits, each with its own United States Court of Appeals. (There are also a District of Columbia Circuit and a Federal Circuit, both of which sit in Washington D.C. and have special, non-geographic jurisdictions.)
- 1st Circuit (Courthouse in Boston, Massachusetts)
- 2nd Circuit (Courthouse in New York, New York)
- 3rd Circuit (Courthouse in Philadelphia, Pennsylvania)
- 4th Circuit (Courthouse in Richmond, Virginia)
- 5th Circuit (Courthouse in New Orleans, Louisiana)
- 6th Circuit (Courthouse in Cincinnati, Ohio)
- 7th Circuit (Courthouse in Chicago, Illinois)
- 8th Circuit (Courthouse in St. Louis, Missouri)
- 9th Circuit (meeting places vary from California to Alaska, but headquarters are in San Francisco, California)
- 10th Circuit (Courthouse in Denver, Colorado)
- 11th Circuit (Courthouse in Atlanta, Georgia)
Federal Reserve banks
The Federal Reserve Act of 1913 divided the country into twelve regions with a central Reserve Bank in each. The Federal Reserve Districts are as follows:
- Boston
- New York
- Philadelphia
- Cleveland
- Richmond
- Atlanta
- Chicago
- St Louis
- Minneapolis
- Kansas City
- Dallas
- San Francisco
Unofficial U.S. regions
- Appalachia
- American West
- Ark-La-Tex
- Baja Arizona
- Blackstone River Valley
- Border states
- *Civil War Border States
- *International Border states
- The Carolinas
- Cascadia
- Central United States
- Champlain Valley
- Coastal States
- Colorado Plateau
- Continental United States
- Columbia River Basin
- The Dakotas
- Deep South
- Delmarva Peninsula
- Dixie
- Driftless Zone
- East Coast
- Eastern Seaboard
- Eastern United States
- Four Corners
- Frontier Strip
- Great American Desert
- Great Basin
- Great Lakes Region
- Great North Woods
- Great Plains
- Great Valley
- Gulf Coast
- Gulf South
- High Plains
- Inland Empire (Pacific Northwest)
- Interior Plains
- Intermountain States
- International Border states
- Lake Tahoe
- Llano Estacado
- Mid-Atlantic
- Middle America
- The Midwest
- Mississippi Delta
- Mojave Desert
- Mountain states
- New England
- New York/Tri-State
- Ohio Valley
- Ozarks
- Pacific States
- Pacific Northwest
- Palouse
- Piedmont
- Piney Woods
- Shawnee Hills
- Shenandoah Valley
- Siouxland
- Southeastern United States
- Southwest
- Southwest Extreme Triangle
- Susquehanna Valley
- Tennessee Valley
- Trans-Appalachia
- Upper Midwest
- The Virginias
- West Coast
- Western United States
The \"Belts\"
Main article: "Belt" regions of the United States- Bible Belt
- Corn Belt
- Cotton Belt
- Grain Belt
- Rust Belt
- Snow Belt
- Sun Belt
Interstate metropolitan areas
- Augusta-Aiken Metropolitan Area
- Baltimore-Washington Metropolitan Area
- Charlotte Metropolitan Area
- Chicagoland
- Delaware Valley
- Kansas City Metropolitan Area
- Kentuckiana - Louisville Kentucky and Southern Indiana
- Memphis Metropolitan Area
- Michiana
- Minneapolis-Saint Paul
- National Capital Region
- New York Metropolitan Area, the Tri-State Region
- Omaha-Council Bluffs Metropolitan Area
- Portland Metropolitan Area
- Quad Cities
- Southeastern New England
- St. Louis Metropolitan Area
- Tri-Cities (Tennessee-Virginia)
- Twin Ports (Duluth, Minnesota-Superior, Wisconsin)
- Cincinnati/Northern Kentucky Metropolitan Area
Interstate megalopolises
Intrastate regions
Alabama
- Greater Birmingham
- Black Belt
- Central Alabama
- Alabama Gulf Coast
- Lower Alabama
- Mobile Bay
- North Alabama
- South Alabama
Alaska
- Alaska Arctic
- Alaskan Bush
- Alaska Interior
- Alaska North Slope
- Alaska Panhandle
- Aleutian Islands
- Kenai Peninsula
- Seward Peninsula
- South Central Alaska
- Southeast Alaska
- Southwest Alaska
- Tanana Valley
Arizona
- Arizona Strip
- Grand Canyon
- North Central Arizona
- Northeast Arizona
- Northern Arizona
- Phoenix metropolitan area
- Southern Arizona
Arkansas
- Arklatex
- Ozarks
- Ouachita Mountains
- Mississippi Alluvial Plain
- Western Arkansas
- West Gulf Coastal Plain
- Crowley's Ridge
- Arkansas River Valley
- Little Rock Metropolitan Area
California
- North Coast
- Sierra Nevada
- Owens Valley
- Central Valley
- *Sacramento Valley
- *San Joaquin Valley
- Central Coast
- *Big Sur
- *Salinas Valley
- Northern California
- * San Francisco Bay Area
- ** Silicon Valley
- ** The Peninsula
- ** Santa Clara Valley
- ** North Bay
- ** East Bay
- * Tri-Valley Area
- * Redwood Empire
- * Gold Country
- * Wine Country
- ** Napa Valley
- ** Russian River Valley
- ** Sonoma Valley
- *Shasta Cascade
- *Yosemite
- SanSan
- Southern California
- *Tech Coast
- * Greater Los Angeles Area
- **Beach Cities
- **Conejo Valley
- **Crescenta Valley
- **East Los Angeles
- **Gateway Cities
- **Palos Verdes Peninsula
- **Santa Clarita Valley
- **San Gabriel Valley
- **San Fernando Valley
- **South Bay
- **South Los Angeles
- **West Los Angeles
- * Inland Empire
- **Cucamonga Valley
- **Pomona Valley
- **Victor Valley
- * Imperial Valley
- **Coachella Valley (Palm Springs area)
- * Mojave Desert
- **Antelope Valley
- *Orange County Area
- *San Diego area
- ** North County
- Channel Islands
Colorado
- Central Colorado
- The Eastern Plains
- Colorado Mineral Belt
- The Front Range
- Denver-Aurora Metropolitan Area
- The High Rockies
- San Luis Valley
- The Western Slope
- Northwestern Colorado
- South-Central Colorado
- Southwestern Colorado
Connecticut
- Coastal Connecticut
- Inland Connecticut
- New York Metropolitan Area/Gold Coast
- Litchfield Hills
- Naugatuck River Valley
- Greater New Haven
- Greater Hartford
- Lower Connecticut River Valley
- Quiet Corner
- Southeastern Connecticut
- Southwestern Connecticut
Delaware
- Delaware Coast
- Delaware Valley
- Cape Region
Florida
- Central Florida
- *Orlando Area
- Emerald Riviera
- First Coast
- Florida Keys
- Florida Panhandle
- Gold Coast
- Nature Coast
- North Central Florida
- South Florida
- Southwest Florida
- Space Coast
- Sun Coast
- Tampa Bay Area
- Treasure Coast
- Walt Disney World
Georgia
- Central Savannah River Area
- Colonial Coast
- Georgia Mountains Region
- The Golden Isles of Georgia
- Historic South
- Inland Empire
- Metro Atlanta
- Southern Rivers
Hawaii
- Hawai‘i / Big Island
- *Puna District
- Kaho‘olawe
- Kaua‘i
- Lāna‘i
- Maui
- Moloka‘i
- Ni‘ihau
- Northwestern Hawaiian Islands
- O‘ahu
Idaho
Illinois
- Chicagoland
- Champaign-Urbana Metropolitan Area
- Little Egypt
- Fox Valley
- Metro-East
- American Bottom
- "The Tract" - Military Tract of 1812
- Northwestern Illinois
Indiana
Iowa
- Iowa Great Lakes
- Loess Hills
- Quad Cities
- East-Central Iowa
- Eastern Iowa
- Great River Road
- Western Iowa
Kansas
- Cherokee Strip
- East-Central Kansas
- Santa Fe Trail
- Southeast Kansas
Kentucky
- The Bluegrass
- Central Kentucky
- Cumberland Plateau
- Northern Kentucky
- Pennyroyal Plateau
- The Purchase
- Western Coal Fields
Louisiana
- Acadiana (Cajun Country)
- *Cajun Heartland
- *River Parishes
Maine
- Acadia
- Down East
- Maine Highlands
- Maine North Woods
- Maine Southern Coast
- Penobscot Bay
- Western Maine Mountains / Maine Lake Country
Maryland
- Baltimore-Washington Metropolitan Area
- Chesapeake Bay
- Maryland Eastern Shore
- Southern Maryland
- Western Maryland
Massachusetts
- The Berkshires
- Cape Ann
- Cape Cod
- Greater Boston
- (includes Martha's Vineyard and Nantucket)
- Merrimack Valley
- MetroWest
- North Shore
- Pioneer Valley
- Southeastern Massachusetts
- South Shore
- Western Massachusetts
Michigan
- Lower Peninsula
- * Metro Detroit
- *Northern Michigan
- *Central Michigan
- *Southern Michigan
- * Western Michigan
- * The Thumb
- Upper Peninsula
- * Copper Country
- * Keweenaw Peninsula
Minnesota
- Arrowhead Region
- Central Minnesota
- Iron Range
- Northwest Angle
- Outstate
- Pipestone Region
- Southeast Minnesota
- Twin Cities Metro
Mississippi
Missouri
Montana
- Bighorn Country
- Eastern Montana
- The Flathead
- Glacier National Park
- Southwestern Montana
- Western Montana
Nebraska
- Nebraska Panhandle
- Northwest Nebraska
- Pine Ridge
- Rainwater Basin
- Sandhills
- Southeast Nebraska
- Wildcat Hills
Nevada
New Hampshire
-->
- Merrimack Valley (Golden Triangle)
- *Souhegan Valley
- Seacoast Region
- Monadnock Region
- *Connecticut River Valley
- Dartmouth-Lake Sunapee
- Lakes Region
- White Mountains
- *Presidential Range
- *Pemigewasset Valley
- *Saco River Valley
- Great North Woods
- Western New Hampshire
- Central New Hampshire
New Jersey
- North Jersey
- *Skylands
- **Valley and Ridge
- **Highlands
- *Gateway
- **Gold Coast
- **Meadowlands
- **Pascack Valley
- *Delaware Valley
New Mexico
-->
New York
- New York Metropolitan Area
- * The Five Boroughs (New York City)
- Long Island
- * The Hamptons
- * North Shore (Gold Coast)
- * South Shore
- Upstate New York
- * Western New York
- ** The Holland Purchase
- ** Burned-over district
- * Finger Lakes
- * Leatherstocking Country
- * Central New York
- ** Central New York Military Tract
- ** Phelps and Gorham Purchase
- * Mohawk Valley
- * Southern Tier
- * Capital District
- * North Country
- ** Adirondack Mountains
- * Catskill Mountains
- ** Borscht Belt
- * Hudson Valley
- ** Shawangunk Ridge
North Carolina
- Land of the Sky
- North Carolina Coast
- North Carolina Mountains
- Outer Banks
- Piedmont Triad
- Research Triangle
North Dakota
- Badlands
- Missouri Escarpment
- Missouri River Corridor
- Red River Valley
Ohio
- Connecticut Western Reserve
- Great Black Swamp
- The Lake Erie Islands
- Miami Valley
- Northeast Ohio - Toledo, Ohio
- Northwest Ohio
Oklahoma
- Arklatex
- Central Oklahoma
- Cherokee Outlet
- Green Country
- Little Dixie
- Northeastern Oklahoma
- Southeastern Oklahoma
- Southwestern Oklahoma
- Panhandle
Oregon
- Columbia River Gorge
- Eastern Oregon
- Harney Basin
- Mt. Hood Corridor
- Oregon Coast
- Rogue Valley
- Tualatin Valley
- Western Oregon
- Willamette Valley
Pennsylvania
- Coal Region
- Delaware Valley
- Endless Mountains
- Happy Valley
- Laurel Highlands
- Lehigh Valley
- Northern Tier
- Northwest Region
- Pennsylvania Dutch Country
- Pennsylvania Highlands
- The Poconos
- Susquehanna Valley
- Western Pennsylvania
- Wyoming Valley
Rhode Island
- Block Island
- Rhode Island South Coast
South Carolina
- Central Savannah River Area (CSRA)
- Grand Strand
- Historic Charleston
- Greater Charleston
- Lake Murray Country
- The Lowcountry
- Metrolina
- Midlands
- Old 96 District
- Olde English District
- Pee Dee
- Santee Cooper Country
- South Carolina Coast
- Thoroughbred Country
- The Upstate
South Dakota
Tennessee
Grand Divisions
Each of the regions below is legally defined as a "Grand Division", with boundaries entrenched in the state's constitution. The document also has rules restricting geographic bias in the makeup of many state commissions. For example, the state's Supreme Court is required to sit in each of the three Grand Divisions each year, and no more than two of the Court's five Justices may reside in any one Grand Division.Geographic
Texas
- Arklatex
- Big Bend
- Brazos Valley
- Central Texas
- East Texas
- Edwards Plateau
- Galveston Bay
- The Hill Country
- North Texas
- * Dallas/Fort Worth Metroplex
- Northeast Texas
- Permian Basin
- Piney Woods
- Rio Grande Valley
- South Plains
- South Texas
- Southeast Texas
- * Golden Triangle
- * Greater Houston
- Texas Panhandle
- West Texas
- *Coastal Plains
Utah
- Canyonlands Desert
- Dixie
- Great Salt Lake Desert
- Southeastern Utah
- Southwestern Utah
- Uinta Mountains
- Wasatch Front
- Wasatch Back
- Wasatch Range
Vermont
- Northeast Kingdom
- Northern Vermont
- Southern Vermont
- Upper Valley
Virginia
- Appomattox Basin
- Eastern Shore
- Hampton Roads
- Historic Triangle
- Middle Peninsula
- Northern Neck
- Northern Virginia (sometimes NoVA)
- Richmond-Petersburg (aka Central Virginia)
- Shenandoah Valley
- South Hampton Roads
- Southside Virginia
- Tidewater
- Virginia Peninsula
Washington
- Central Washington
- Columbia Plateau
- Eastern Washington
- Kitsap Peninsula
- Long Beach Peninsula
- Okanogan Country
- Olympic Peninsula
- Puget Sound
- San Juan Islands
- Skagit Valley
- Tri-Cities
- Walla Walla Valley
- Western Washington
- Yakima Valley
West Virginia
Wisconsin
- Central Plain
- Door Peninsula
- Eastern Ridges and Lowlands
- Lake Superior Lowland
- Northern Highland
- Western Upland
- Winnesota
Wyoming
See also
- Historic regions of the United States
- Geography of the United States
- Political divisions of the United States
- United States territory
- United States metropolitan area
- [WikiProject U.S. Regions]
- Nine Nations of North America
- List of regions of Canada
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