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.
Interstate regions
Official U.S. regions
Regions defined in law or regulations by the federal government.
Bureau of Reclamation Regions
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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, Colorado
- 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
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
Unofficial U.S. regions
- Acadiana
- Appalachia
- Ark-La-Tex
- Border States
- The Carolinas
- Cascadia
- Champlain Valley
- Coastal States
- Continental United States
- Columbia River Basin
- The Dakotas
- Deep South
- Delmarva Peninsula
- Dixie
- East Coast
- Eastern Seaboard
- Four Corners
- Great American Desert
- Great Basin
- Great Lakes Region
- Great North Woods
- Great Plains
- Great Valley
- Gulf Coast
- Gulf South
- Inland Empire
- Interior Plains
- Intermountain States
- International Border states
- Llano Estacado
- Mid-Atlantic
- Middle America
- Mississippi Delta
- New England
- Ozarks
- Pacific Coast
- Pacific Northwest
- Palouse
- Piedmont
- The South
- Shenandoah Valley
- Southwest
- Trans-Appalachia
- Upper Midwest
- The Virginias
- West Coast
The "Belts"
Main article: "Belt" regions of the United States
Interstate metropolitan areas
- Baltimore-Washington Metropolitan Area
- Chicagoland
- Delaware Valley
- Illiana
- Michiana
- New York metropolitan area, the Tri-State Region
- Quad Cities
- Tri-Cities (Tennessee-Virginia)
- The Tri-State (Cincinnati area)
Intrastate regions
Alabama
Alaska
Arizona
- North Central Arizona
- Northern Arizona
- Southern Arizona
Arkansas
California
Colorado
Connecticut
Delaware
- Cape Region
Florida
- Central Florida
- Emerald Riviera
- First Coast
- Florida Keys
- Florida Panhandle
- Gold Coast
- Treasure Coast
- Lee Island Coast
- Nature Coast
- Space Coast
- Sun Coast
- Tampa Bay Area
Georgia
- Colonial Coast
- Georgia Mountains Region
- Historic South
- Inland Empire
- Southern Rivers
Idaho
- Idaho Panhandle
Illinois
Indiana
Iowa
Kansas
Kentucky
- The Bluegrass
- Cumberland Plateau
- Northern Kentucky
- Pennyroyal Plateau
- The Purchase
- Western Coal Fields
Louisiana
Maine
- Down East
- Maine Highlands
- North Woods
- Western Maine Mountains
Maryland
- Central Maryland
- Western Maryland
- Eastern Shore
- Maryland Panhandle
- Southern Maryland
Massachusetts
Michigan
Minnesota
- Arrowhead Country
- Iron Range
- Northwest Angle
- Pipestone Region
Mississippi
- Natchez District
- Mississippi Delta
Missouri
- Missouri Bootheel
- Northern Plains
Montana
- Eastern Montana
- Western Montana
Nebraska
Nevada
New Hampshire
- Dartmouth-Lake Sunapee
- Merrimack Valley
- New Hampshire Lakes
- New Hampshire Seacoast
New Jersey
New Mexico
- New Mexico Bootheel
New York
North Carolina
- Land of the Sky
- Outer Banks
- Piedmont Triad
- Research Triangle
North Dakota
- Badlands
- Missouri Escarpment
- Red River Valley
Ohio
Oklahoma
Oregon
- Columbia River Gorge
- Eastern Oregon
- Harney Basin
- Mt. Hood Corridor
- Oregon Coast
- Rogue Valley
- Tualatin Valley
- Western Oregon
- Willamette Valley
Pennsylvania
- Coal Region
- Lehigh Valley
- Northern Tier
- Northwest Region
- Pennsylvania Dutch Country
- Pennsylvania Highlands
- The Poconos
- Susquehanna Valley
Rhode Island
South Carolina
- Capital City/Lake Murray Country
- Grand Strand
- Historic Charleston
- Old 96 District
- Olde English District
- Pee Dee
- Santee Cooper Country
- South Carolina Low Country
- South Carolina Upcountry
- Thoroughbred Country
South Dakota
Tennessee
Texas
- Big Bend
- Central Texas
- East Texas
- Galveston Bay
- The Hill Country
- North Texas
- Northeast Texas
- Piney Woods
- Rio Grande Valley
- South Texas
- Southeast Texas
- Texas Panhandle
- West Texas
Utah
Vermont
- Northeast Kingdom
- Upper Valley
Virginia
- Appomattox Basin
- Middle Peninsula
- Northern Neck
- Northern Virginia (sometimes NoVA)
- Richmond-Petersburg
- South Hampton Roads
- Southside Virginia
- Tidewater
- Virginia Peninsula
Washington
- Central Washington
- Columbia Plateau
- Eastern Washington
- Kitsap Peninsula
- Okanogan Country
- Olympic Peninsula
- Puget Sound
- San Juan Islands
- Tri-Cities
- Western Washington
- Yakima Valley
West Virginia
Wisconsin
- The Uplands
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
- Wikipedia:WikiProject U.S. Regions
- Nine Nations of North America
- List of regions of Canada