List of regions of the United States

This is a list of some of the ways regions are defined 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.

Census Bureau–designated regions and divisions
Since 1950, 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.
 * Region 1: Northeast
 * Division 1: New England (Connecticut, Maine, Massachusetts, New Hampshire, Rhode Island, and Vermont)
 * Division 2: Middle Atlantic (New Jersey, New York, and Pennsylvania)
 * Region 2: Midwest (designated as the North Central Region before June 1984)
 * Division 3: East North Central (Illinois, Indiana, Michigan, Ohio, and Wisconsin)
 * Division 4: West North Central (Iowa, Kansas, Minnesota, Missouri, Nebraska, North Dakota, and South Dakota)
 * Region 3: South
 * Division 5: South Atlantic (Delaware, Florida, Georgia, Maryland, North Carolina, South Carolina, Virginia, Washington, D.C., and West Virginia)
 * Division 6: East South Central (Alabama, Kentucky, Mississippi, and Tennessee)
 * Division 7: West South Central (Arkansas, Louisiana, Oklahoma, and Texas)
 * Region 4: West
 * Division 8: Mountain (Arizona, Colorado, Idaho, Montana, Nevada, New Mexico, Utah, and Wyoming)
 * Division 9: Pacific (Alaska, California, Hawaii, Oregon, and Washington)

Puerto Rico and other US territories are not part of any census region or census division.

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, but several other states are also divided between 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

 * UTC−12:00 (Baker Island, Howland Island)
 * Samoa Time Zone (American Samoa, Jarvis Island, Kingman Reef, Midway Atoll, Palmyra Atoll)
 * Hawaii–Aleutian Time Zone (Hawaii, Aleutian Islands (Alaska), Johnston Atoll)
 * Alaska Time Zone (Alaska, excluding Aleutian Islands)
 * Pacific Time Zone
 * Arizona Time Zone (excluding the Navajo Nation)
 * Mountain Time Zone (excluding most parts of Arizona)
 * Central Time Zone
 * Eastern Time Zone
 * Atlantic Time Zone (Puerto Rico, U.S. Virgin Islands)
 * Chamorro Time Zone (Guam, Northern Mariana Islands)
 * Wake Island Time Zone (Wake Island)

Courts of Appeals circuits

 * First Circuit
 * Second Circuit
 * Third Circuit
 * Fourth Circuit
 * Fifth Circuit
 * Sixth Circuit
 * Seventh Circuit
 * Eighth Circuit
 * Ninth Circuit
 * Tenth Circuit
 * Eleventh Circuit
 * D.C. Circuit

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

Agency administrative regions
In 1969, the Office of Management and Budget published a list of ten "Standard Federal Regions", to which federal agencies could be restructured as a means of standardizing government administration nationwide. Despite a finding in 1977 that this restructuring did not reduce administrative costs as initially expected, and the complete rescinding of the standard region system in 1995, several agencies continue to follow the system, including the Environmental Protection Agency and the Department of Housing and Urban Development.

Region I
Office location: Boston

States: Connecticut, Maine, Massachusetts, New Hampshire, Rhode Island, and Vermont

Region II
Office location: New York City

States: New York, New Jersey, Puerto Rico, and the U.S. Virgin Islands

Region III
Office location: Philadelphia

States: Delaware, Maryland, Pennsylvania, Virginia, Washington, D.C., and West Virginia

Region IV
Office location: Atlanta

States: Alabama, Florida, Georgia, Kentucky, Mississippi, North Carolina, South Carolina, and Tennessee

Region V
Office location: Chicago

States: Illinois, Indiana, Minnesota, Michigan, Ohio, and Wisconsin

Region VI
Office location: Dallas

States: Arkansas, Louisiana, New Mexico, Oklahoma, and Texas

Region VII
Office location: Kansas City

States: Iowa, Kansas, Missouri, and Nebraska

Region VIII
Office location: Denver

States: Colorado, Montana, North Dakota, South Dakota, Utah, and Wyoming

Region IX
Office location: San Francisco

States: Arizona, California, Hawaii, Nevada, Guam, Northern Mariana Islands, and American Samoa

Region X
Office location: Seattle

States: Alaska, Idaho, Oregon, and Washington

Bureau of Economic Analysis regions
The Bureau of Economic Analysis defines regions for comparison of economic data.


 * New England: Connecticut, Maine, Massachusetts, New Hampshire, Rhode Island, and Vermont
 * Mideast: Delaware, Maryland, New Jersey, New York, Pennsylvania, and Washington, D.C.
 * Great Lakes: Illinois, Indiana, Michigan, Ohio, and Wisconsin
 * Plains: Iowa, Kansas, Minnesota, Missouri, Nebraska, North Dakota, and South Dakota
 * Southeast: Alabama, Arkansas, Florida, Georgia, Kentucky, Louisiana, Mississippi, North Carolina, South Carolina, Tennessee, Virginia, and West Virginia
 * Southwest: Arizona, New Mexico, Oklahoma, and Texas
 * Rocky Mountain: Colorado, Idaho, Montana, Utah, and Wyoming
 * Far West: Alaska, California, Hawaii, Nevada, Oregon, and Washington

Multi-state regions

 * American Frontier
 * Appalachia
 * Ark-La-Tex
 * Black Dirt Region
 * Border states:
 * Civil War border states
 * International border states
 * The Californias
 * Calumet Region
 * The Carolinas
 * Cascadia
 * Central United States
 * Coastal states
 * Colorado Plateau
 * Columbia Basin
 * Contiguous United States
 * The Dakotas
 * Deep South
 * Deseret
 * Delmarva Peninsula
 * Dixie
 * Dixie Alley
 * Driftless Area
 * East Coast
 * Eastern United States
 * Four Corners
 * Great American Desert
 * Great Appalachian Valley
 * Great Basin
 * Great Lakes Region
 * Great Plains
 * Gulf Coast
 * High Plains
 * Interior Plains
 * Intermountain States
 * Kentuckiana
 * Llano Estacado
 * Lower 48
 * Michiana
 * Mid-Atlantic states
 * Mid-South states
 * Midwestern United States
 * Mississippi Delta
 * Mojave Desert
 * Mormon Corridor
 * New England
 * Northern New England
 * Southern New England
 * North Woods
 * Northeastern United States
 * Northern United States
 * Northwestern United States
 * Ohio Valley
 * Ozarks
 * Pacific Northwest
 * Inland Northwest
 * Palouse
 * Piedmont
 * Piney Woods
 * Rocky Mountains
 * Southern Rocky Mountains
 * Siouxland
 * Southeastern United States
 * Southern United States
 * Old South
 * Southwestern United States
 * Old Southwest
 * Tidewater
 * Tornado Alley
 * Trans-Mississippi
 * Twin Tiers
 * Upland South
 * Upper Midwest
 * Virginias
 * Waxhaws
 * West Coast
 * Western United States

Multi-territory regions

 * Mariana Islands (Guam and the Northern Mariana Islands)
 * Samoan Islands (American Samoa, except Swains Island)
 * Virgin Islands (the Spanish Virgin Islands and the U.S. Virgin Islands)

The Belts

 * Bible Belt
 * Black Belt
 * Coal Belt
 * Corn Belt
 * Cotton Belt
 * Fruit Belt
 * Pine Belt
 * Rice Belt
 * Rust Belt
 * Snowbelt
 * Sun Belt

Interstate megalopolises

 * Arizona Sun Corridor
 * California
 * Cascadia
 * Great Lakes
 * Gulf Coast
 * Northeast
 * Piedmont Atlantic
 * Southern Rocky Mountain Front

Interstate metropolitan areas

 * Central Savannah River Area (part of Georgia and South Carolina)
 * Baltimore–Washington metropolitan area (Washington, D.C. and parts of Maryland, Virginia, West Virginia, and Pennsylvania)
 * Washington metropolitan area (District of Columbia and parts of Maryland, Virginia, and West Virginia)
 * Greater Boston (parts of Massachusetts, Rhode Island, and New Hampshire)
 * Charlotte metropolitan area (parts of North Carolina and South Carolina)
 * Chattanooga Metropolitan Area
 * Chicago metropolitan area (parts of Illinois, Indiana, and Wisconsin)
 * Cincinnati metropolitan area (parts of Ohio, Indiana, and Kentucky)
 * Columbus-Auburn-Opelika (GA-AL) Combined Statistical Area (parts of Georgia and Alabama)
 * Delaware Valley (parts of Pennsylvania, New Jersey, Delaware, and Maryland)
 * Evansville, IN–KY Metropolitan Statistical Area (parts of Indiana and Kentucky)
 * Fargo–Moorhead (parts of North Dakota and Minnesota)
 * Fort Smith metropolitan area (parts of Arkansas and Oklahoma)
 * Front Range Urban Corridor (parts of Colorado and Wyoming)
 * Greater Grand Forks (part of Minnesota and North Dakota)
 * Hartford-Springfield (parts of Connecticut and Massachusetts)
 * Kansas City metropolitan area (parts of Missouri and Kansas)
 * Louisville metropolitan area (Kentuckiana) (parts of Kentucky and Indiana)
 * Memphis metropolitan area (parts of Tennessee, Arkansas, and Mississippi)
 * Michiana (parts of Michigan and Indiana)
 * Minneapolis–Saint Paul (the Twin Cities) (parts of Minnesota and Wisconsin)
 * New York metropolitan area (parts of New York, New Jersey, Connecticut, and Pennsylvania)
 * Omaha–Council Bluffs metropolitan area (parts of Nebraska and Iowa)
 * Portland metropolitan area (parts of Oregon and Washington)
 * Quad Cities (parts of Iowa and Illinois)
 * Sacramento metropolitan area (parts of California and Nevada)
 * Greater St. Louis (parts of Missouri and Illinois)
 * Texarkana metropolitan area (parts of Texas and Arkansas)
 * Tri-Cities (parts of Tennessee and Virginia)
 * Twin Ports (Duluth, Minnesota and Superior, Wisconsin)
 * Hampton Roads region (parts of Virginia and North Carolina)
 * Youngstown–Warren–Boardman metropolitan statistical area (parts of Ohio and Pennsylvania)

Alabama
Regions of Alabama include:
 * Alabama Gulf Coast
 * Greater Birmingham
 * Black Belt
 * Central Alabama
 * Lower Alabama
 * Mobile Bay
 * North Alabama
 * Northeast Alabama
 * Northwest Alabama
 * South Alabama

Alaska
Regions of Alaska include:
 * Alaska Interior
 * Alaska North Slope
 * Alaska Panhandle
 * Aleutian Islands
 * Arctic Alaska
 * The Bush
 * Kenai Peninsula
 * Matanuska-Susitna Valley
 * Seward Peninsula
 * Southcentral Alaska
 * Southwest Alaska
 * Tanana Valley
 * Yukon-Kuskokwim Delta

American Samoa
Regions of American Samoa include:
 * Manu'a Islands
 * Ofu-Olosega
 * Ta'ū
 * Rose Atoll
 * Swains Island
 * Tutuila and Aunu'u

Arizona
Regions of Arizona include:
 * Arizona Strip
 * Grand Canyon
 * North Central Arizona
 * Northeast Arizona
 * Northern Arizona
 * Phoenix metropolitan area
 * Southern Arizona

Arkansas
Regions of Arkansas include:
 * Arkansas Delta
 * Arkansas River Valley
 * Arkansas Timberlands
 * Central Arkansas
 * Crowley's Ridge
 * Northwest Arkansas
 * South Arkansas

Colorado
Regions of Colorado include:
 * Central Colorado (part of Southern Rocky Mountains)
 * Colorado Eastern Plains (part of High Plains)
 * Colorado Mineral Belt (part of Southern Rocky Mountains)
 * Colorado Piedmont (parts of the Front Range Urban Corridor and Colorado High Plains)
 * Colorado Plateau (multi-state region)
 * Colorado Western Slope (parts of Southern Rocky Mountains and Colorado Plateau)
 * Denver Metropolitan Area (part of Front Range Urban Corridor)
 * Four Corners Region (multi-state region of Colorado Plateau)
 * Front Range Urban Corridor (multi-state region)
 * High Plains (multi-state region of Great Plains)
 * North Central Colorado Urban Area (part of Front Range Urban Corridor)
 * Northwestern Colorado (part of Southern Rocky Mountains)
 * San Luis Valley
 * South-Central Colorado
 * South Central Colorado Urban Area (part of Front Range Urban Corridor)
 * Southern Rocky Mountains (multi-state region of Rocky Mountains)
 * Southwestern Colorado (parts of Southern Rocky Mountains and Colorado Plateau)

Connecticut
Connecticut has nine official planning regions, which operate as councils of governments and are recognized as county equivalents by the U.S. Census Bureau. The nine regions are:
 * Capitol Region
 * Greater Bridgeport
 * Lower Connecticut River Valley
 * Naugatuck Valley
 * Northeastern Connecticut
 * Northwest Hills
 * South Central Connecticut
 * Southeastern Connecticut
 * Western Connecticut

Some of Connecticut's informal regions include:
 * Coastal Connecticut
 * Connecticut panhandle/Gold Coast
 * Farmington Valley
 * Housatonic Valley
 * Litchfield Hills
 * Quiet Corner

Delaware
Regions of Delaware include: "Slower Lower":
 * "Upstate" or "Up North":
 * Delaware Valley, also known as "Above the Canal" (referring to the Chesapeake and Delaware Canal)
 * Cape Region
 * Central Kent
 * Delaware coast

Florida


Directional regions of Florida include:


 * Central Florida
 * East Florida
 * North Central Florida
 * North Florida
 * Northwest Florida
 * Northeast Florida
 * South Florida
 * Southwest Florida
 * West Florida

Local vernacular regions of Florida include:


 * Big Bend
 * Emerald Coast
 * First Coast
 * Florida Heartland
 * Florida Keys
 * Florida Panhandle
 * Forgotten Coast
 * Glades
 * Gold Coast
 * Halifax area (also Surf Coast and Fun Coast)
 * Red Hills
 * Nature Coast
 * Space Coast
 * Suncoast
 * Tampa Bay Area
 * Treasure Coast

Georgia
Regions of Georgia include:
 * Atlanta metropolitan area
 * Central Georgia
 * Central Savannah River Area
 * Colonial Coast
 * Golden Isles of Georgia
 * North Georgia
 * North Georgia mountains (Northeast Georgia)
 * Southern Rivers
 * Southeast Georgia
 * Wiregrass Region

Physiographic regions
Physiographic regions of Georgia include:
 * Appalachian Plateau
 * Blue Ridge Mountains
 * Coastal Plain
 * Piedmont
 * Ridge-and-Valley Appalachians

Guam
Regions of Guam include:
 * Cocos Island
 * Guam (main island)
 * Ritidian Point
 * Tumon

Hawaii
Regions of Hawaii include:


 * Hawaiʻi Island (Big Island)
 * Hamakua Coast
 * Kaʻū Desert
 * Kohala Coast
 * Kona Coast
 * Mauna Kea
 * Puna District
 * Waiākea-Uka
 * Kahoʻolawe
 * Kauaʻi
 * Nā Pali Coast
 * Kaʻula
 * Lānai
 * Maui
 * Haleakalā
 * Molokini
 * West Maui Mountains
 * Iao Valley
 * Molokaʻi
 * Kalaupapa Peninsula
 * Niʻihau
 * Lehua
 * Northwestern Hawaiian Islands
 * Nihoa (Moku Manu)
 * Necker Island (Mokumanamana)
 * French Frigate Shoals (Kānemiloha)
 * Gardner Pinnacles (Pūhāhonu)
 * Maro Reef (Nalukākala)
 * Laysan (Kauō)
 * Lisianski (Papaāpoho)
 * Pearl and Hermes (Holoikauaua)
 * Kure Atoll (Mokupāpapa)
 * Oʻahu
 * Kaʻena Point
 * Makapuʻu
 * North Shore
 * Waikīkī

Idaho
Regions of Idaho include:


 * Central Idaho
 * Eastern Idaho
 * Idaho Panhandle
 * Magic Valley
 * North Central Idaho
 * Palouse Hills
 * Southern Idaho
 * Southwestern Idaho
 * Treasure Valley

Illinois
Regions of Illinois include:


 * Central Illinois
 * Champaign–Urbana metropolitan area
 * Chicago metropolitan area
 * Community areas in Chicago
 * Fox Valley
 * The Collar Counties
 * North Shore
 * Driftless Area
 * Forgottonia
 * Metro-East
 * American Bottom
 * River Bend
 * Metro Lakeland
 * Military Tract of 1812
 * Northern Illinois
 * Northwestern Illinois
 * Peoria, Illinois metropolitan area
 * Quad Cities
 * Rock River Valley
 * Shawnee Hills
 * Southern Illinois (sometimes, Little Egypt)
 * Tri-State Area
 * Wabash Valley

Indiana
Regions of Indiana include:


 * East Central Indiana
 * Indianapolis metropolitan area
 * Michiana
 * Northern Indiana
 * Northwest Indiana
 * Southern Indiana
 * Southwestern Indiana
 * Wabash Valley

Iowa
Regions of Iowa include:


 * Coteau des Prairies
 * Des Moines metropolitan area
 * Dissected Till Plains
 * Driftless Area
 * Great River Road
 * Honey Lands
 * Iowa Great Lakes
 * Loess Hills
 * Omaha–Council Bluffs metropolitan area
 * Quad Cities
 * Siouxland

Kansas
Regions of Kansas include:


 * East-Central Kansas
 * Flint Hills
 * High Plains
 * Kansas City Metropolitan Area
 * North Central Kansas
 * Osage Plains
 * Ozarks
 * Red Hills
 * Santa Fe Trail
 * Smoky Hills
 * Southeast Kansas

Kentucky
Regions of Kentucky include:


 * Bluegrass
 * Cumberland Plateau or Eastern Coal Field
 * Jackson Purchase
 * Pennyroyal Plateau
 * Western Coal Field

Louisiana
Regions of Louisiana include:


 * Acadiana
 * Cajun Heartland
 * River Parishes


 * Central Louisiana (Cen-La)
 * Florida Parishes
 * "French Louisiana" (Acadiana and Greater New Orleans)
 * Greater New Orleans
 * North Louisiana
 * Southwest Louisiana

Maine
Regions of Maine include:


 * Acadia
 * Down East
 * High Peaks / Maine Highlands
 * Hundred-Mile Wilderness
 * Kennebec Valley
 * Maine Highlands
 * Maine Lake Country
 * Maine North Woods
 * Mid Coast
 * Penobscot Bay
 * Southern Maine Coast
 * Western Maine Mountains

Maryland
Regions of Maryland include:


 * Baltimore–Washington Metropolitan Area
 * Capital region
 * Chesapeake Bay
 * Eastern Shore of Maryland
 * Patapsco Valley
 * Southern Maryland
 * Western Maryland

Regions of Maryland shared with other states include:


 * Allegheny Mountains
 * Atlantic coastal plain
 * Blue Ridge Mountains
 * Cumberland Valley
 * Delaware Valley
 * Delmarva Peninsula consists of Maryland's and Virginia's Eastern Shore and all of Delaware
 * Piedmont (United States)
 * Ridge-and-Valley Appalachians

Massachusetts
Regions of Massachusetts include:


 * Central Massachusetts
 * MetroWest
 * Montachusett-North County
 * South County
 * Blackstone River Valley
 * Northeastern Massachusetts
 * North Shore
 * Merrimack Valley
 * Cape Ann
 * Greater Boston
 * Southeastern Massachusetts
 * Cape Cod and Islands
 * Cape Cod
 * Martha's Vineyard
 * Nantucket
 * South Coast
 * South Shore
 * Western Massachusetts
 * The Berkshires (shown in map)
 * Housatonic Valley
 * Pioneer Valley
 * Quabbin-Swift River Valley

Michigan
Regions of Michigan include:

Lower Peninsula

 * Northern Michigan
 * Traverse Bay Area
 * Straits Area
 * Central/Mid-Michigan
 * The Thumb
 * Bluewater Area
 * Tri-Cities
 * Capital Region
 * West Michigan
 * Southwest Michigan
 * Michiana
 * Grand Rapids area
 * Southeast Michigan
 * Metro Detroit

Upper Peninsula

 * Western Upper Peninsula
 * Copper Country
 * Copper Island
 * Central Upper Peninsula
 * US 41 Corridor
 * Eastern Upper Peninsula
 * Straits Area
 * Soo Area

Minnesota
Regions of Minnesota include:


 * Arrowhead Region
 * Boundary Waters
 * Buffalo Ridge
 * Central Minnesota
 * Coulee Region
 * Iron Range
 * Minnesota River Valley
 * North Shore
 * Northwest Angle
 * Pipestone Region
 * Red River Valley
 * Southeast Minnesota
 * Twin Cities Metro

Mississippi
Regions of Mississippi include:


 * Mississippi Alluvial Plain
 * Mississippi Delta
 * Mississippi Gulf Coast
 * Natchez Trace

Missouri
Regions of Missouri include:


 * Boonslick
 * Bootheel
 * Dissected Till Plains
 * Kansas City Metropolitan Area
 * Lead Belt
 * Little Dixie
 * Ozarks
 * Platte Purchase
 * St. Louis Metropolitan Area

Montana
Regions of Montana include:


 * Big Horn Mountains
 * Eastern Montana
 * Glacier Country
 * Glacier National Park
 * Regional designations of Montana
 * The Flathead
 * Two Medicine
 * Western Montana
 * Yellowstone National Park

Nebraska
Regions of Nebraska include:


 * Nebraska Panhandle
 * Pine Ridge
 * Rainwater Basin
 * Sand Hills
 * Wildcat Hills

Nevada
Regions of Nevada include:


 * Black Rock Desert
 * Lake Tahoe
 * Las Vegas Valley
 * Mojave Desert
 * Pahranagat Valley
 * Sierra Nevada

New Hampshire
Regions of New Hampshire include:


 * Connecticut River Valley
 * Dartmouth-Lake Sunapee Region (overlaps with Connecticut River Valley)
 * Great North Woods Region
 * Lakes Region
 * Merrimack Valley
 * Golden Triangle
 * Monadnock Region (overlaps with Connecticut River Valley)
 * Seacoast Region
 * White Mountains

New Jersey
Regions of New Jersey include:


 * Central Jersey
 * Bayshore
 * Jersey Shore
 * Shore Region
 * North Jersey
 * Skylands
 * Amwell Valley
 * Black Dirt Region (shared with New York)
 * Great Valley
 * Hunterdon Plateau
 * Ridge-and-Valley Appalachians
 * Highlands
 * Somerset Hills
 * The Sourlands
 * Gateway
 * Chemical Coast/Soundshore
 * Hudson Waterfront
 * North Hudson
 * Meadowlands
 * Pascack Valley
 * Raritan Bayshore
 * West Hudson
 * South Jersey
 * Shore Region
 * New Jersey Pine Barrens
 * Delaware Valley
 * Southern Shore
 * Cape May

New Mexico
Regions of New Mexico include:


 * Central New Mexico
 * Eastern New Mexico
 * New Mexico Bootheel
 * Northern New Mexico

New York
The nine regions of New York, as defined by the Empire State Development Corporation:


 * Capital District – counties : Albany, Columbia, Greene, Warren, Washington, Saratoga, Schenectady, Rensselaer
 * Central New York – counties: Cortland, Cayuga, Onondaga, Oswego, Madison
 * Finger Lakes – counties: Orleans, Genesee, Wyoming, Monroe, Livingston, Wayne, Ontario, Yates, Seneca
 * Hudson Valley – counties: Sullivan, Ulster, Dutchess, Orange, Putnam, Rockland, Westchester
 * Long Island – counties: Nassau, Suffolk
 * Mohawk Valley – counties: Oneida, Herkimer, Fulton, Montgomery, Otsego, Schoharie
 * New York City – counties (boroughs): New York (Manhattan), Bronx (The Bronx), Queens (Queens), Kings (Brooklyn), Richmond (Staten Island)
 * North Country – counties : St. Lawrence, Lewis, Jefferson, Hamilton, Essex, Clinton, Franklin
 * Southern Tier – counties: Steuben, Schuyler, Chemung, Tompkins, Tioga, Chenango, Broome, Delaware
 * Western New York – counties: Niagara, Erie, Chautauqua, Cattaraugus, Allegany

Regions of New York state include:
 * Downstate New York
 * New York metropolitan area (New York City)
 * Long Island
 * East End
 * The Hamptons
 * North Shore (Gold Coast)
 * South Shore
 * Upstate New York
 * Erie Canal Corridor
 * Western New York
 * Holland Purchase
 * Burned-over district
 * Finger Lakes
 * former Leatherstocking Country (now the Central New York Region)
 * Central New York
 * Central New York Military Tract
 * Phelps and Gorham Purchase
 * Syracuse metropolitan area
 * Mohawk Valley
 * Southern Tier
 * Capital District
 * North Country
 * Adirondack Mountains
 * Adirondack Park
 * Ski country
 * Thousand Islands
 * Tug Hill
 * Catskill Mountains
 * Borscht Belt
 * Hudson Valley
 * Shawangunk Ridge
 * Black Dirt Region (shared with New Jersey)

North Carolina
Regions of North Carolina include:


 * Eastern North Carolina
 * Fayetteville Metropolitan Area
 * Inner Banks
 * Albemarle
 * Global TransPark Economic Development Area
 * Tidewater
 * Lower Cape Fear (Wilmington Area)
 * Outer Banks
 * Crystal Coast
 * Bogue Banks
 * Down East
 * Sandhills
 * Central North Carolina
 * Piedmont Crescent
 * Metropolitan Charlotte (Metrolina)
 * Lake Norman Area
 * Metropolitan Piedmont Triad
 * Sauratown Mountains
 * Uwharrie Mountains
 * Yadkin Valley
 * The Research Triangle
 * New Hope Valley
 * Western North Carolina
 * Foothills Region
 * South Mountains
 * The Unifour (Catawba Valley Area)
 * High Country (Boone Area)
 * Land of the Sky
 * Asheville Metropolitan Area
 * Great Craggy Mountains
 * Blue Ridge Mountains
 * Black Mountains
 * Brushy Mountains
 * Great Balsam Mountains
 * Unaka Mountains
 * Unicoi Mountains
 * Great Smoky Mountains
 * Tennessee Valley

North Dakota
Regions of North Dakota include:


 * Badlands
 * Drift Prairie
 * Missouri Escarpment
 * Missouri Plateau (Missouri Coteau in French)
 * Red River Valley

Northern Mariana Islands
Regions of the Northern Mariana Islands include:


 * Northern Islands
 * Alamagan
 * Anatahan
 * Agrihan
 * Asuncion Island
 * Farallon de Medinilla
 * Farallon de Pajaros
 * Guguan
 * Maug Islands
 * Pagan
 * Sarigan
 * Rota
 * Saipan
 * Tinian

Ohio
Regions of Ohio include:


 * Allegheny Plateau
 * Appalachian Ohio
 * Cincinnati-Northern Kentucky metropolitan area
 * Columbus, Ohio metropolitan area
 * Connecticut Western Reserve (historic)
 * Great Black Swamp (shared with Indiana)
 * Lake Erie Islands
 * Miami Valley
 * Northeast Ohio (often used interchangeably with Greater Cleveland, but also includes the counties of Ashtabula, Portage, Summit, Trumbull, Mahoning and Columbiana.)
 * Northwest Ohio

Oklahoma
Regions of Oklahoma include:


 * Central Oklahoma
 * Cherokee Outlet
 * Green Country
 * Choctaw Country
 * Little Dixie
 * Northwestern Oklahoma
 * Panhandle
 * South Central Oklahoma
 * Southwestern Oklahoma

Oregon
Regions of Oregon include:


 * Cascade Range
 * Central Oregon
 * Columbia Plateau
 * Columbia River
 * Columbia River Gorge
 * Eastern Oregon
 * Goose Lake Valley
 * Harney Basin
 * High Desert
 * Hood River Valley
 * Mount Hood Corridor
 * Northwest Oregon
 * Oregon Coast
 * Palouse
 * Portland metropolitan area
 * Rogue Valley
 * Southern Oregon
 * Treasure Valley
 * Tualatin Valley
 * Warner Valley
 * Western Oregon
 * Willamette Valley

Pennsylvania
Regions of Pennsylvania include:
 * Allegheny National Forest
 * Coal Region
 * Cumberland Valley
 * Delaware Valley
 * Dutch Country
 * Endless Mountains
 * Highlands Region
 * Laurel Highlands
 * Lehigh Valley
 * Northern Tier
 * Northeastern Pennsylvania
 * Philadelphia Main Line
 * Pittsburgh metropolitan area
 * South Central Pennsylvania
 * Susquehanna Valley
 * The Poconos
 * Western Pennsylvania
 * Wyoming Valley

Puerto Rico
Regions of Puerto Rico include:


 * Caja de Muertos
 * Culebra
 * Desecheo Island
 * Isla de Mona
 * Puerto Rico (main island)
 * Cordillera Central
 * El Yunque
 * Vieques

Rhode Island
Regions of Rhode Island include:


 * Blackstone Valley
 * Block Island
 * East Bay
 * West Bay
 * South County

South Carolina
Regions of South Carolina include:


 * The Lowcountry
 * The Midlands
 * The Upstate
 * Travel/Tourism locations
 * Grand Strand
 * Lake Murray Country
 * The Lowcountry & Resort Islands
 * Old 96 District
 * Olde English District
 * Pee Dee
 * Santee Cooper Country


 * Other geographical distinctions:
 * Blue Ridge Mountains
 * Charleston metropolitan area
 * Columbia metropolitan area
 * The Piedmont
 * The Sandhills
 * Sea Islands
 * West Ashley

South Dakota
Regions of South Dakota include:


 * Badlands
 * Black Hills
 * Coteau des Prairies
 * East River and West River, divided by the Missouri River

Tennessee
The Grand Divisions of Tennessee include:
 * East Tennessee
 * Middle Tennessee
 * West Tennessee
 * Other geographical distinctions:
 * Highland Rim
 * Nashville Basin
 * Tennessee Valley

Texas
Regions of Texas include:


 * Brazos Valley
 * Central Texas
 * Texas blackland prairies
 * The Hill Country
 * Gulf Coast
 * Galveston Bay
 * Greater Houston
 * East Texas
 * Piney Woods and Northeast Texas
 * North Texas
 * Dallas–Fort Worth Metroplex
 * Texoma
 * South Texas
 * Rio Grande Valley
 * Southeast Texas
 * Golden Triangle
 * Greater Houston
 * Texas Midwest/West-Central Texas (includes Abilene, San Angelo, Brownwood, Texas)
 * Texas Urban Triangle (Houston to San Antonio to Dallas-Fort Worth)
 * West Texas
 * Concho Valley
 * Edwards Plateau
 * Llano Estacado (a portion of northwest Texas)
 * Permian Basin
 * South Plains (includes 24 counties south of the Texas Panhandle and north of the Permian Basin)
 * Texas Panhandle (pictured)
 * Trans-Pecos
 * Great Plains

U.S. Minor Outlying Islands
Regions of United States Minor Outlying Islands include:


 * Baker Island
 * Howland Island
 * Jarvis Island
 * Johnston Island
 * Kingman Reef
 * Midway Atoll
 * Navassa Island
 * Palmyra Atoll
 * Wake Island

U.S. Virgin Islands
Regions of United States Virgin Islands include:


 * Saint Croix
 * Saint John
 * Saint Thomas

Utah
Regions of Utah include:


 * Cache Valley
 * Colorado Plateau
 * Dixie
 * Great Salt Lake Desert
 * Mojave Desert
 * San Rafael Swell
 * Uinta Mountains
 * Wasatch Back
 * Wasatch Front
 * Wasatch Range

Vermont
Regions of Vermont include:
 * Burlington metropolitan area
 * Champlain Valley
 * Green Mountains
 * Mount Mansfield
 * Northeast Kingdom

Virginia
Regions of Virginia include:


 * Eastern Shore
 * Greater Richmond Region
 * Hampton Roads
 * Historic Triangle
 * Northern Neck
 * Northern Virginia
 * Piedmont region of Virginia
 * Shenandoah Valley
 * South Hampton Roads
 * Southside Virginia
 * Southwest Virginia
 * Tidewater
 * Tri-Cities
 * Virginia Peninsula

Washington
Regions of Washington include:


 * Central Washington
 * Columbia Plateau
 * Eastern Washington
 * Kitsap Peninsula
 * Long Beach Peninsula
 * Okanagan Country
 * Olympic Mountains
 * Olympic Peninsula
 * Puget Sound
 * San Juan Islands
 * Skagit Valley
 * Southwest Washington
 * Tri-Cities
 * Walla Walla Valley
 * Western Washington
 * Yakima Valley

West Virginia
Regions of West Virginia include:
 * Eastern Panhandle
 * North Central West Virginia
 * Northern Panhandle
 * Potomac Highlands
 * Southern West Virginia

Wisconsin
Wisconsin is divided into five geographic regions:


 * Central Plain
 * Eastern Ridges and Lowlands
 * Lake Superior Lowland
 * Northern Highland
 * Western Upland

Wyoming
Regions of Wyoming include:
 * Bighorn Basin
 * Powder River Country