Megaregions of the United States
Encyclopedia
A Megaregion, also known as a Megalopolis
Megalopolis (city type)
A megalopolis is typically defined as a chain of roughly adjacent metropolitan areas. The term was used by Oswald Spengler in his 1918 book, The Decline of the West, and Lewis Mumford in his 1938 book, The Culture of Cities, which described it as the first stage in urban overdevelopment and...

or Megapolitan Area, refers to a clustered network of American cities whose population ranges or is projected to range from about 7 to 63 million by the year 2025. America 2050, an organization sponsored by the Rockefeller
Rockefeller Foundation
The Rockefeller Foundation is a prominent philanthropic organization and private foundation based at 420 Fifth Avenue, New York City. The preeminent institution established by the six-generation Rockefeller family, it was founded by John D. Rockefeller , along with his son John D. Rockefeller, Jr...

 and Ford Foundation
Ford Foundation
The Ford Foundation is a private foundation incorporated in Michigan and based in New York City created to fund programs that were chartered in 1936 by Edsel Ford and Henry Ford....

s, lists 11 megaregions in the United States and Canada. Megapolitan areas were explored in a July 2005 report by Robert E. Lang and Dawn Dhavale of the Metropolitan Institute at Virginia Tech. A later 2007 article by Lang and Nelson uses 20 megapolitan areas grouped into 10 megaregions. The concept is based on the original Megalopolis
Megalopolis (city type)
A megalopolis is typically defined as a chain of roughly adjacent metropolitan areas. The term was used by Oswald Spengler in his 1918 book, The Decline of the West, and Lewis Mumford in his 1938 book, The Culture of Cities, which described it as the first stage in urban overdevelopment and...

 model.

Definition

A megaregion is a large network of metropolitan regions that share several or all of the following:
  • Environmental systems and topography
  • Infrastructure systems
  • Economic linkages
  • Settlement and land use patterns
  • Culture and history


More than 70 percent of the nation's population and jobs are located in 11 megaregions identified by Regional Plan Association. Megaregions are becoming the new competitive units in the global economy, characterized by the increasing movement of goods, people and capital among their metropolitan regions. "The New Megas," asserted Florida (2006), "are the real economic organizing units of the world, producing the bulk of its wealth, attracting a large share of its talent and generating the lion's share of innovation."

The megaregion concept provides cities and metropolitan regions a context within which to cooperate across jurisdictional borders, including the coordination of policies, to address specific challenges experienced at the megaregion scale, such as planning for high speed rail, protecting large watersheds, and coordinating regional economic development strategies.

The Regional Plan Association
Regional Plan Association
The Regional Plan Association is an independent, not-for-profit regional planning organization, founded in 1922, that focuses on recommendations to improve the quality of life and economic competitiveness of the 31-county New York-New Jersey-Connecticut region...

 recognizes 11 emerging megaregions:
  • Arizona Sun Corridor Megaregion
  • Cascadia Megaregion
  • Florida Megaregion
  • Front Range Megaregion
  • Great Lakes Megaregion
  • Gulf Coast Megaregion
  • Northeast Megaregion
  • Northern California Megaregion
  • Piedmont Atlantic Megaregion
  • Southern California Megaregion
  • Texas Triangle Megaregion

Megaregions and planning: A brief history

Though identification of the megaregions has gone through several iterations, the 11 identified above are based on a set of criteria developed by Regional Plan Association, through its America 2050 initiative - a joint venture with the Lincoln Institute of Land Policy. Two historic publications helped lay the foundation for this new set of criteria, the book Megalopolis by Jean Gottmann (1961) and The Regions’ Growth, part of Regional Plan Association’s second regional plan.

The relationships underpinning megaregions have become more pronounced over the second half of the 20th century as a result of decentralized land development, longer daily commutes, increased business travel, and a more footloose, flexible, knowledge workforce. The identification of new geographic scales—historically based on increased population movement from the city center to lower density areas—has a long history; but unlike those that came before, the megaregion concept does not simply recognize and accept the anticipated pattern of growth as inevitable; the megaregion presents immense opportunities from a regional planning perspective, to improve the environmental, infrastructure and other issues shared among the regions within it. Gottman explains, "As the work of data-gathering and analysis progressed it became evident that the key to most of the questions involved in this study of Megalopolis lies in the interrelationships between the forces and processes at work within the area rather than in the trends of growth or the development of techniques. Thus the trend of population increase, easy to measure and perhaps to forecast approximately, provides less insight into the nature of the area than do the interrelations existing between the processes that caused the local population to grow, those that attracted certain kinds of people to Megalopolis, and those that supplied the swelling crowds with the means to live and work there. Many of these processes are statistically measurable and some of them can be mapped, but the degree to which each of them stems from the others or determines them is a much more subtle matter, and is more basic to an understanding of what is going on and what can be done about it." The most recent and only previous attempt to plan at this scale happened more than 70 years ago, with the Tennessee Valley Authority. Political issues stymied further efforts at river basin planning and development.

In 1961's Megalopolis, Gottman describes the Northeastern seaboard of the United States - or Megapologis - as "...difficult to single out...from surrounding areas, for its limits cut across established historical divisions, such as New England and the Middle Atlantic states, and across political entities, since it includes some states entirely and others only partially." On the complex nature of this regional scale he writes:

Some of the major characteristics of Megalopolis, which set it apart as a special region within the United States, are the high degree of concentration of people, things and functions crowded here, and also their variety. This kind of crowding and its significance cannot be described by simple measurements. Its various aspects will be shown on a number of maps, and if these could all be superimposed on one base map there would be demarcated an area in which so many kinds of crowding coincide in general (though not always in all the details of their geographical distribution) that the region is quite different from all neighboring regions and in fact from any other part of North America. The essential reason for its difference is the greater concentration here of a greater variety of kinds of crowding.

Crowding of population, which may first be expressed in terms of densities per square mile, will, of course, be a major characteristic to survey. As this study aims at understanding the meaning of population density, we shall have to know the foundation that supports such crowding over such a very fast area. What do these people do? What is their average income and their standard of living? What is the distribution pattern of wealth and of certain more highly paid occupations? For example, the outstanding concentration of population in the City of New York and its immediate suburbs (a mass of more than ten million people by any count) cannot be separated from the enormous concentration in the same city of banking, insurance, wholesale, entertainment, and transportation activities. These various kinds of concentration have attracted a whole series of other activities, such as management of large corporations, retail business, travel agencies, advertising, legal and technical counseling offices, colleges, research organizations, and so on. Coexistence of all these facilities on an unequaled scale within the relatively small territory of New York City, and especially of its business district...has made the place even more attractive to additional banking, insurance, and mass media organizations. Thus have concentration snowballed.

Methodology

The methodology for identifying the emerging megaregions included assigning each county a point for each of the following:
  • It was part of a core based statistical area;
  • Its population density exceeded 200 people per square mile as of the 2000 census;
  • The projected population growth rate was expected to be greater than 15 percent and total increased population was expected to exceed 1,000 people by 2025;
  • The population density was expected to increase by 50 or more people per square mile between 2000 and 2025; and
  • The projected employment growth rate was expected to be greater than 15 percent and total growth in jobs was expected to exceed 20,000 by 2025.

Shortcomings of this methodology

This methodology was much more successful at identifying fast-growing regions with existing metropolitan centers than more sparsely-populated, slower growing regions. Nor does it include a distinct marker for connectedness between cities.

Megaregions and world

The close relationship between large linked metropolitan regions and a nation's ability to compete in the global economy is recognized in Europe and Asia. Each has aggressively pursued strategies to manage projected population growth and strengthen economic prosperity in its large regions.

The European Spatial Development Perspective
European Spatial Development Perspective
The European Spatial Development Perspective is a document approved by the Informal Council of Ministers of Spatial Planning of European Commission in Potsdam in 1999. It is a legally non-binding document forming a policy framework with 60 policy options for all tiers of administration with a...

, a set of policies and strategies adopted by the European Union
European Union
The European Union is an economic and political union of 27 independent member states which are located primarily in Europe. The EU traces its origins from the European Coal and Steel Community and the European Economic Community , formed by six countries in 1958...

 in 1999, is working to integrate the economies of the member regions, reduce economic disparities, and increase economic competitiveness (Faludi 2002; Deas and Lord 2006).

In East Asia
East Asia
East Asia or Eastern Asia is a subregion of Asia that can be defined in either geographical or cultural terms...

 comprehensive strategic planning for large regions, centered on metropolitan areas, has become increasingly common and has progressed further than in the United States or Europe. Planning for the Hong Kong-Pearl River Delta
Pearl River Delta
The Pearl River Delta , Zhujiang Delta or Zhusanjiao in Guangdong province, People's Republic of China is the low-lying area surrounding the Pearl River estuary where the Pearl River flows into the South China Sea...

 region, for instance, aims to enhance the region's economic strength and competitiveness by overcoming local fragmentation, building on global economic cooperation, taking advantage of mutually beneficial economic factors, increasing connectivity among development nodes, and pursuing other strategic directions.

Statistics

Megaregion Counties Area (sq. mi.) Population 2000 Density 2000 (per sq. mi.) Pop 2025/percent growth 2005 GDP (billions of US$) GDP (2005) per capita (2000) (in US$)
Arizona Sun Corridor
Arizona Sun Corridor
The Arizona Sun Corridor, shortened Sun Corridor, is a megaregion, or megapolitan area, in the southern area of the U.S. state of Arizona. The Sun Corridor is equivalent to Indiana in size and population; unlike Indiana, it will add another Indiana's worth of residents by 2040...

8 48,803 4,535,049 93 7,362,613 / 62% 191 42,000
Cascadia
Pacific Northwest
The Pacific Northwest is a region in northwestern North America, bounded by the Pacific Ocean to the west and, loosely, by the Rocky Mountains on the east. Definitions of the region vary and there is no commonly agreed upon boundary, even among Pacific Northwesterners. A common concept of the...

34 47,226 7,400,532 157 10,209,826 / 38% 337 45,500
Florida
Florida
Florida is a state in the southeastern United States, located on the nation's Atlantic and Gulf coasts. It is bordered to the west by the Gulf of Mexico, to the north by Alabama and Georgia and to the east by the Atlantic Ocean. With a population of 18,801,310 as measured by the 2010 census, it...

42 38,356 14,686,285 383 21,358,829 / 45% 608 41,400
Front Range
Front Range Urban Corridor
The Front Range Urban Corridor is an oblong region of urban population located along the eastern face of the Southern Rocky Mountains in the U.S. states of Colorado and Wyoming. The corridor derives its name from the Front Range, the mountain range that defines the west central boundary of the...

30 56,810 4,733,679 83 6,817,462 / 44% 229 48,700
Gulf Coast 75 59,519 11,747,587 197 15,832,117 / 35% 524 44,700
Great Lakes
Great Lakes Megalopolis
The Great Lakes Megalopolis consists of the group of North American metropolitan areas which surround the Great Lakes region mainly within the Midwestern United States, the Southern Ontario area of Canada, along with large parts of Pennsylvania, New York, and Quebec...

388 205,452 53,768,125 262 62,894,147 / 17% 2,073 38,500
Northeast
Northeast megalopolis
The Northeast megalopolis or Boston–Washington megalopolis is the heavily urbanized area of the United States stretching from the the northern suburbs of Boston, Massachusetts to the southern suburbs of Washington, D.C. On a map, the region appears almost as a perfectly straight line. As of 2000,...

142 61,942 49,563,296 800 58,124,740 / 17% 2,591 52,000
Northern California
Northern California
Northern California is the northern portion of the U.S. state of California. The San Francisco Bay Area , and Sacramento as well as its metropolitan area are the main population centers...

31 47,928 12,724,861 265 17,290,363 / 36% 623 49,000
Piedmont Atlantic
Piedmont Atlantic MegaRegion
The Piedmont Atlantic Megaregion is the name given to an area of the Southeastern United States that includes the Atlanta, Charlotte, Nashville, Birmingham, Upstate South Carolina, Piedmont Triad, and Raleigh-Durham metropolitan areas. The megaregion generally follows the Interstate 85/20 corridor...

121 59,525 21,162,581 356 30,351,698 / 38% 486 23,000
Southern California
Southern California
Southern California is a megaregion, or megapolitan area, in the southern area of the U.S. state of California. Large urban areas include Greater Los Angeles and Greater San Diego. The urban area stretches along the coast from Ventura through the Southland and Inland Empire to San Diego...

10 61,986 21,858,662 353 28,692,923 / 31% 1,037 47,600
Texas Triangle
Texas Triangle
The Texas Triangle is one of eleven so-called megaregions in the United States. These are urban areas that are much greater in scale than just a metropolitan statistical area , defined by the US Census Bureau. These regions also are known as megapolitan areas...

101 85,312 16,131,347 189 23,586,856 / 46% 818 50,500
Megaregions (Total) 967 772,860 206,780,494 268 265,216,481 / 28% 9,199 44,500
Rest of Country 2,117 2,245,370 73,508,817 33 90,820,565 / 24% 3,235 44,000
United States 3,085 3,018,230 280,289,311 93 356,037,046 / 27% 12,434 44,300
Megaregion Percent 31% 26% 74% N/A 74% 74% N/A

Major cities

Megaregion Major cities Related articles
Arizona Sun Corridor Phoenix
Phoenix, Arizona
Phoenix is the capital, and largest city, of the U.S. state of Arizona, as well as the sixth most populated city in the United States. Phoenix is home to 1,445,632 people according to the official 2010 U.S. Census Bureau data...

, Tucson
Tucson, Arizona
Tucson is a city in and the county seat of Pima County, Arizona, United States. The city is located 118 miles southeast of Phoenix and 60 miles north of the U.S.-Mexico border. The 2010 United States Census puts the city's population at 520,116 with a metropolitan area population at 1,020,200...

 
Arizona Sun Corridor
Arizona Sun Corridor
The Arizona Sun Corridor, shortened Sun Corridor, is a megaregion, or megapolitan area, in the southern area of the U.S. state of Arizona. The Sun Corridor is equivalent to Indiana in size and population; unlike Indiana, it will add another Indiana's worth of residents by 2040...

, Arizona
Arizona
Arizona ; is a state located in the southwestern region of the United States. It is also part of the western United States and the mountain west. The capital and largest city is Phoenix...

, Phoenix metropolitan area
Phoenix Metropolitan Area
The Phoenix metropolitan area, often referred to as The Valley of the Sun, is a metropolitan area, centered on the city of Phoenix, that includes much of the central part of the US state of Arizona...

, Sun Belt
Sun Belt
The Sun Belt or Spanish Belt is a region of the United States generally considered to stretch across the South and Southwest . Another rough boundary of the region is the area south of the 36th parallel, north latitude. It is the largest region which the U.S government does not recognize officially...

Cascadia Seattle, Vancouver
Vancouver
Vancouver is a coastal seaport city on the mainland of British Columbia, Canada. It is the hub of Greater Vancouver, which, with over 2.3 million residents, is the third most populous metropolitan area in the country,...

, Portland
Portland, Oregon
Portland is a city located in the Pacific Northwest, near the confluence of the Willamette and Columbia rivers in the U.S. state of Oregon. As of the 2010 Census, it had a population of 583,776, making it the 29th most populous city in the United States...

, Boise
Boise, Idaho
Boise is the capital and most populous city of the U.S. state of Idaho, as well as the county seat of Ada County. Located on the Boise River, it anchors the Boise City-Nampa metropolitan area and is the largest city between Salt Lake City, Utah and Portland, Oregon.As of the 2010 Census Bureau,...

, Victoria
Victoria, British Columbia
Victoria is the capital city of British Columbia, Canada and is located on the southern tip of Vancouver Island off Canada's Pacific coast. The city has a population of about 78,000 within the metropolitan area of Greater Victoria, which has a population of 360,063, the 15th most populous Canadian...

, Spokane
Spokane, Washington
Spokane is a city located in the Northwestern United States in the state of Washington. It is the largest city of Spokane County of which it is also the county seat, and the metropolitan center of the Inland Northwest region...

, Salem
Salem, Oregon
Salem is the capital of the U.S. state of Oregon, and the county seat of Marion County. It is located in the center of the Willamette Valley alongside the Willamette River, which runs north through the city. The river forms the boundary between Marion and Polk counties, and the city neighborhood...

, Eugene
Eugene, Oregon
Eugene is the second largest city in the U.S. state of Oregon and the seat of Lane County. It is located at the south end of the Willamette Valley, at the confluence of the McKenzie and Willamette rivers, about east of the Oregon Coast.As of the 2010 U.S...

, Abbotsford
Abbotsford, British Columbia
Abbotsford is a Canadian city located in the Lower Mainland of British Columbia, adjacent to Greater Vancouver. It is the fifth largest municipality in British Columbia, home to 123,864 people . Its Census Metropolitan Area, which includes the District of Mission, is the 23rd largest in Canada,...

 
Pacific Northwest
Pacific Northwest
The Pacific Northwest is a region in northwestern North America, bounded by the Pacific Ocean to the west and, loosely, by the Rocky Mountains on the east. Definitions of the region vary and there is no commonly agreed upon boundary, even among Pacific Northwesterners. A common concept of the...

, Cascadia
Cascadia
Cascadia, a term that derives from the Cascade Range, may refer to:* the Pacific Northwest* Cascadia, a former plant genus now included in Saxifraga* 1700 Cascadia earthquake...

, Ecotopia
Ecotopia
Ecotopia: The Notebooks and Reports of William Weston is the seminal utopian novel by Ernest Callenbach, published in 1975. The society described in the book is one of the first ecological utopias and was influential on the counterculture, and the green movement in the 1970s and thereafter.-The...

Florida Miami, Tampa
Tampa, Florida
Tampa is a city in the U.S. state of Florida. It serves as the county seat for Hillsborough County. Tampa is located on the west coast of Florida. The population of Tampa in 2010 was 335,709....

, Orlando
Orlando, Florida
Orlando is a city in the central region of the U.S. state of Florida. It is the county seat of Orange County, and the center of the Greater Orlando metropolitan area. According to the 2010 US Census, the city had a population of 238,300, making Orlando the 79th largest city in the United States...

, Jacksonville
Jacksonville, Florida
Jacksonville is the largest city in the U.S. state of Florida in terms of both population and land area, and the largest city by area in the contiguous United States. It is the county seat of Duval County, with which the city government consolidated in 1968...

 
Florida
Florida
Florida is a state in the southeastern United States, located on the nation's Atlantic and Gulf coasts. It is bordered to the west by the Gulf of Mexico, to the north by Alabama and Georgia and to the east by the Atlantic Ocean. With a population of 18,801,310 as measured by the 2010 census, it...

, South Florida metropolitan area
South Florida metropolitan area
The South Florida metropolitan area, also known as the Miami metropolitan area, and designated the Miami–Fort Lauderdale–Pompano Beach, FL Metropolitan Statistical Area by the U.S...

, Tampa Bay Area
Tampa Bay Area
The Tampa Bay Area is the region of west central Florida adjacent to Tampa Bay. Definitions of the region vary. It is often considered equivalent to the Tampa-St. Petersburg-Clearwater Metropolitan Statistical Area defined by the United States Census Bureau. The Census Bureau currently...

, Central Florida
Central Florida
Central Florida is a regional designation for the area surrounding Orlando in east central Florida, United States. The area represents the third largest population concentration in Florida, after the South Florida and Tampa Bay regions, respectively....

, Southwest Florida
Southwest Florida
Southwest Florida is a region of Florida , United States located along its gulf coast, south of the Tampa Bay area, west of Lake Okeechobee and mostly north of the Everglades...

, Sun Belt
Sun Belt
The Sun Belt or Spanish Belt is a region of the United States generally considered to stretch across the South and Southwest . Another rough boundary of the region is the area south of the 36th parallel, north latitude. It is the largest region which the U.S government does not recognize officially...

Front Range Denver, Salt Lake City, Albuquerque
Albuquerque, New Mexico
Albuquerque is the largest city in the state of New Mexico, United States. It is the county seat of Bernalillo County and is situated in the central part of the state, straddling the Rio Grande. The city population was 545,852 as of the 2010 Census and ranks as the 32nd-largest city in the U.S. As...

, Colorado Springs
Colorado Springs, Colorado
Colorado Springs is a Home Rule Municipality that is the county seat and most populous city of El Paso County, Colorado, United States. Colorado Springs is located in South-Central Colorado, in the southern portion of the state. It is situated on Fountain Creek and is located south of the Colorado...

, Provo
Provo, Utah
Provo is the third largest city in the U.S. state of Utah, located about south of Salt Lake City along the Wasatch Front. Provo is the county seat of Utah County and lies between the cities of Orem to the north and Springville to the south...

, Cheyenne
Cheyenne, Wyoming
Cheyenne is the capital and most populous city of the U.S. state of Wyoming and the county seat of Laramie County. It is the principal city of the Cheyenne, Wyoming, Metropolitan Statistical Area which encompasses all of Laramie County. The population is 59,466 at the 2010 census. Cheyenne is the...

 
Front Range Urban Corridor
Front Range Urban Corridor
The Front Range Urban Corridor is an oblong region of urban population located along the eastern face of the Southern Rocky Mountains in the U.S. states of Colorado and Wyoming. The corridor derives its name from the Front Range, the mountain range that defines the west central boundary of the...

, Wasatch Front
Wasatch Front
The Wasatch Front is a metropolitan region in the north-central part of the U.S. state of Utah. It consists of a chain of cities and towns stretched along the Wasatch Range from approximately Santaquin in the south to Brigham City in the north...

Great Lakes Chicago
Chicago
Chicago is the largest city in the US state of Illinois. With nearly 2.7 million residents, it is the most populous city in the Midwestern United States and the third most populous in the US, after New York City and Los Angeles...

, Toronto
Toronto
Toronto is the provincial capital of Ontario and the largest city in Canada. It is located in Southern Ontario on the northwestern shore of Lake Ontario. A relatively modern city, Toronto's history dates back to the late-18th century, when its land was first purchased by the British monarchy from...

, Detroit, Montreal
Montreal
Montreal is a city in Canada. It is the largest city in the province of Quebec, the second-largest city in Canada and the seventh largest in North America...

, Minneapolis – Saint Paul, St. Louis
St. Louis, Missouri
St. Louis is an independent city on the eastern border of Missouri, United States. With a population of 319,294, it was the 58th-largest U.S. city at the 2010 U.S. Census. The Greater St...

, Pittsburgh, Cincinnati, Cleveland, Ottawa
Ottawa
Ottawa is the capital of Canada, the second largest city in the Province of Ontario, and the fourth largest city in the country. The city is located on the south bank of the Ottawa River in the eastern portion of Southern Ontario...

, Kansas City
Kansas City, Missouri
Kansas City, Missouri is the largest city in the U.S. state of Missouri and is the anchor city of the Kansas City Metropolitan Area, the second largest metropolitan area in Missouri. It encompasses in parts of Jackson, Clay, Cass, and Platte counties...

, Columbus
Columbus, Ohio
Columbus is the capital of and the largest city in the U.S. state of Ohio. The broader metropolitan area encompasses several counties and is the third largest in Ohio behind those of Cleveland and Cincinnati. Columbus is the third largest city in the American Midwest, and the fifteenth largest city...

, Indianapolis
Indianapolis
Indianapolis is the capital of the U.S. state of Indiana, and the county seat of Marion County, Indiana. As of the 2010 United States Census, the city's population is 839,489. It is by far Indiana's largest city and, as of the 2010 U.S...

, Milwaukee, Madison
Madison, Wisconsin
Madison is the capital of the U.S. state of Wisconsin and the county seat of Dane County. It is also home to the University of Wisconsin–Madison....

, Louisville
Louisville, Kentucky
Louisville is the largest city in the U.S. state of Kentucky, and the county seat of Jefferson County. Since 2003, the city's borders have been coterminous with those of the county because of a city-county merger. The city's population at the 2010 census was 741,096...

, Buffalo
Buffalo, New York
Buffalo is the second most populous city in the state of New York, after New York City. Located in Western New York on the eastern shores of Lake Erie and at the head of the Niagara River across from Fort Erie, Ontario, Buffalo is the seat of Erie County and the principal city of the...

, Rochester
Rochester, New York
Rochester is a city in Monroe County, New York, south of Lake Ontario in the United States. Known as The World's Image Centre, it was also once known as The Flour City, and more recently as The Flower City...

, Green Bay
Green Bay, Wisconsin
Green Bay is a city in and the county seat of Brown County in the U.S. state of Wisconsin, located at the head of Green Bay, a sub-basin of Lake Michigan, at the mouth of the Fox River. It has an elevation of above sea level and is located north of Milwaukee. As of the 2010 United States Census,...

 
Great Lakes Megalopolis
Great Lakes Megalopolis
The Great Lakes Megalopolis consists of the group of North American metropolitan areas which surround the Great Lakes region mainly within the Midwestern United States, the Southern Ontario area of Canada, along with large parts of Pennsylvania, New York, and Quebec...

, Great Lakes region
Great Lakes region (North America)
The Great Lakes region of North America, occasionally known as the Third Coast or the Fresh Coast , includes the eight U.S. states of Illinois, Indiana, Michigan, Minnesota, New York, Ohio, Pennsylvania and Wisconsin as well as the Canadian province of Ontario...

, Midwestern United States
Midwestern United States
The Midwestern United States is one of the four U.S. geographic regions defined by the United States Census Bureau, providing an official definition of the American Midwest....

, Quebec City – Windsor Corridor
Gulf Coast Houston, New Orleans, Baton Rouge
Baton Rouge, Louisiana
Baton Rouge is the capital of the U.S. state of Louisiana. It is located in East Baton Rouge Parish and is the second-largest city in the state.Baton Rouge is a major industrial, petrochemical, medical, and research center of the American South...

, Mobile
Mobile, Alabama
Mobile is the third most populous city in the Southern US state of Alabama and is the county seat of Mobile County. It is located on the Mobile River and the central Gulf Coast of the United States. The population within the city limits was 195,111 during the 2010 census. It is the largest...

, Corpus Christi
Corpus Christi, Texas
Corpus Christi is a coastal city in the South Texas region of the U.S. state of Texas. The county seat of Nueces County, it also extends into Aransas, Kleberg, and San Patricio counties. The MSA population in 2008 was 416,376. The population was 305,215 at the 2010 census making it the...

, Pensacola
Pensacola, Florida
Pensacola is the westernmost city in the Florida Panhandle and the county seat of Escambia County, Florida, United States of America. As of the 2000 census, the city had a total population of 56,255 and as of 2009, the estimated population was 53,752...

 
Gulf Coast
Northeast New York City
New York City
New York is the most populous city in the United States and the center of the New York Metropolitan Area, one of the most populous metropolitan areas in the world. New York exerts a significant impact upon global commerce, finance, media, art, fashion, research, technology, education, and...

, Philadelphia, Wilmington
Wilmington, Delaware
Wilmington is the largest city in the state of Delaware, United States, and is located at the confluence of the Christina River and Brandywine Creek, near where the Christina flows into the Delaware River. It is the county seat of New Castle County and one of the major cities in the Delaware Valley...

, Washington, D.C.
Washington, D.C.
Washington, D.C., formally the District of Columbia and commonly referred to as Washington, "the District", or simply D.C., is the capital of the United States. On July 16, 1790, the United States Congress approved the creation of a permanent national capital as permitted by the U.S. Constitution....

, Boston
Boston
Boston is the capital of and largest city in Massachusetts, and is one of the oldest cities in the United States. The largest city in New England, Boston is regarded as the unofficial "Capital of New England" for its economic and cultural impact on the entire New England region. The city proper had...

, Baltimore
Baltimore
Baltimore is the largest independent city in the United States and the largest city and cultural center of the US state of Maryland. The city is located in central Maryland along the tidal portion of the Patapsco River, an arm of the Chesapeake Bay. Baltimore is sometimes referred to as Baltimore...

, Newark
Newark, New Jersey
Newark is the largest city in the American state of New Jersey, and the seat of Essex County. As of the 2010 United States Census, Newark had a population of 277,140, maintaining its status as the largest municipality in New Jersey. It is the 68th largest city in the U.S...

, Hampton Roads
Hampton Roads
Hampton Roads is the name for both a body of water and the Norfolk–Virginia Beach metropolitan area which surrounds it in southeastern Virginia, United States...

 (Virginia Beach–Norfolk
Norfolk, Virginia
Norfolk is an independent city in the Commonwealth of Virginia in the United States. With a population of 242,803 as of the 2010 Census, it is Virginia's second-largest city behind neighboring Virginia Beach....

), Providence
Providence, Rhode Island
Providence is the capital and most populous city of Rhode Island and was one of the first cities established in the United States. Located in Providence County, it is the third largest city in the New England region...

, Richmond
Richmond, Virginia
Richmond is the capital of the Commonwealth of Virginia, in the United States. It is an independent city and not part of any county. Richmond is the center of the Richmond Metropolitan Statistical Area and the Greater Richmond area...

, Hartford
Hartford, Connecticut
Hartford is the capital of the U.S. state of Connecticut. The seat of Hartford County until Connecticut disbanded county government in 1960, it is the second most populous city on New England's largest river, the Connecticut River. As of the 2010 Census, Hartford's population was 124,775, making...

, and Springfield
Springfield, Massachusetts
Springfield is the most populous city in Western New England, and the seat of Hampden County, Massachusetts, United States. Springfield sits on the eastern bank of the Connecticut River near its confluence with three rivers; the western Westfield River, the eastern Chicopee River, and the eastern...

 
Northeast megalopolis
Northeast megalopolis
The Northeast megalopolis or Boston–Washington megalopolis is the heavily urbanized area of the United States stretching from the the northern suburbs of Boston, Massachusetts to the southern suburbs of Washington, D.C. On a map, the region appears almost as a perfectly straight line. As of 2000,...

, Northeast Corridor
Northeast Corridor
The Northeast Corridor is a fully electrified railway line owned primarily by Amtrak serving the Northeast megalopolis of the United States from Boston in the north, via New York to Washington, D.C. in the south, with branches serving other cities...

, Northeast
Northeastern United States
The Northeastern United States is a region of the United States as defined by the United States Census Bureau.-Composition:The region comprises nine states: the New England states of Connecticut, Maine, Massachusetts, New Hampshire, Rhode Island and Vermont; and the Mid-Atlantic states of New...

Northern California San Francisco, Oakland
Oakland, California
Oakland is a major West Coast port city on San Francisco Bay in the U.S. state of California. It is the eighth-largest city in the state with a 2010 population of 390,724...

, San Jose
San Jose, California
San Jose is the third-largest city in California, the tenth-largest in the U.S., and the county seat of Santa Clara County which is located at the southern end of San Francisco Bay...

, Sacramento
Sacramento, California
Sacramento is the capital city of the U.S. state of California and the county seat of Sacramento County. It is located at the confluence of the Sacramento River and the American River in the northern portion of California's expansive Central Valley. With a population of 466,488 at the 2010 census,...

, Fresno
Fresno, California
Fresno is a city in central California, United States, the county seat of Fresno County. As of the 2010 census, the city's population was 510,365, making it the fifth largest city in California, the largest inland city in California, and the 34th largest in the nation...

, Reno
Reno
Reno is the fourth most populous city in Nevada, US.Reno may also refer to:-Places:Italy*The Reno River, in Northern ItalyCanada*Reno No...

 
Northern California
Northern California
Northern California is the northern portion of the U.S. state of California. The San Francisco Bay Area , and Sacramento as well as its metropolitan area are the main population centers...

, California megapolitan areas, Sun Belt
Sun Belt
The Sun Belt or Spanish Belt is a region of the United States generally considered to stretch across the South and Southwest . Another rough boundary of the region is the area south of the 36th parallel, north latitude. It is the largest region which the U.S government does not recognize officially...

Piedmont Atlantic Atlanta, Charlotte
Charlotte, North Carolina
Charlotte is the largest city in the U.S. state of North Carolina and the seat of Mecklenburg County. In 2010, Charlotte's population according to the US Census Bureau was 731,424, making it the 17th largest city in the United States based on population. The Charlotte metropolitan area had a 2009...

, Research Triangle (Raleigh
Raleigh, North Carolina
Raleigh is the capital and the second largest city in the state of North Carolina as well as the seat of Wake County. Raleigh is known as the "City of Oaks" for its many oak trees. According to the U.S. Census Bureau, the city's 2010 population was 403,892, over an area of , making Raleigh...

Durham
Durham, North Carolina
Durham is a city in the U.S. state of North Carolina. It is the county seat of Durham County and also extends into Wake County. It is the fifth-largest city in the state, and the 85th-largest in the United States by population, with 228,330 residents as of the 2010 United States census...

), Nashville
Nashville, Tennessee
Nashville is the capital of the U.S. state of Tennessee and the county seat of Davidson County. It is located on the Cumberland River in Davidson County, in the north-central part of the state. The city is a center for the health care, publishing, banking and transportation industries, and is home...

, Piedmont Triad
Piedmont Triad
The Piedmont Triad, or Triad, is a north-central region of the U.S. state of North Carolina that consists of the area within and surrounding the three major cities of Greensboro, Winston-Salem, and High Point. This close group or "triad" of cities lies in the Piedmont geographical region of the...

 (Greensboro
Greensboro, North Carolina
Greensboro is a city in the U.S. state of North Carolina. It is the third-largest city by population in North Carolina and the largest city in Guilford County and the surrounding Piedmont Triad metropolitan region. According to the 2010 U.S...

Winston-Salem
Winston-Salem, North Carolina
Winston-Salem is a city in the U.S. state of North Carolina, with a 2010 population of 229,617. Winston-Salem is the county seat and largest city of Forsyth County and the fourth-largest city in the state. Winston-Salem is the second largest municipality in the Piedmont Triad region and is home to...

), Birmingham
Birmingham, Alabama
Birmingham is the largest city in Alabama. The city is the county seat of Jefferson County. According to the 2010 United States Census, Birmingham had a population of 212,237. The Birmingham-Hoover Metropolitan Area, in estimate by the U.S...

, Knoxville
Knoxville, Tennessee
Founded in 1786, Knoxville is the third-largest city in the U.S. state of Tennessee, U.S.A., behind Memphis and Nashville, and is the county seat of Knox County. It is the largest city in East Tennessee, and the second-largest city in the Appalachia region...

, Chattanooga
Chattanooga, Tennessee
Chattanooga is the fourth-largest city in the US state of Tennessee , with a population of 169,887. It is the seat of Hamilton County...

, Huntsville
Huntsville, Alabama
Huntsville is a city located primarily in Madison County in the central part of the far northern region of the U.S. state of Alabama. Huntsville is the county seat of Madison County. The city extends west into neighboring Limestone County. Huntsville's population was 180,105 as of the 2010 Census....

, Memphis, Montgomery
Montgomery, Alabama
Montgomery is the capital of the U.S. state of Alabama, and is the county seat of Montgomery County. It is located on the Alabama River southeast of the center of the state, in the Gulf Coastal Plain. As of the 2010 census, Montgomery had a population of 205,764 making it the second-largest city...

, Upstate South Carolina (Greenville
Greenville, South Carolina
-Law and government:The city of Greenville adopted the Council-Manager form of municipal government in 1976.-History:The area was part of the Cherokee Nation's protected grounds after the Treaty of 1763, which ended the French and Indian War. No White man was allowed to enter, though some families...

Spartanburg
Spartanburg, South Carolina
thgSpartanburg is the largest city in and the county seat of Spartanburg County, South Carolina, United States. It is the second-largest city of the three primary cities in the Upstate region of South Carolina, and is located northwest of Columbia, west of Charlotte, and about northeast of...

), Columbia
Columbia, South Carolina
Columbia is the state capital and largest city in the U.S. state of South Carolina. The population was 129,272 according to the 2010 census. Columbia is the county seat of Richland County, but a portion of the city extends into neighboring Lexington County. The city is the center of a metropolitan...

 
Piedmont Atlantic Megaregion
Piedmont Atlantic MegaRegion
The Piedmont Atlantic Megaregion is the name given to an area of the Southeastern United States that includes the Atlanta, Charlotte, Nashville, Birmingham, Upstate South Carolina, Piedmont Triad, and Raleigh-Durham metropolitan areas. The megaregion generally follows the Interstate 85/20 corridor...

, Piedmont
Piedmont (United States)
The Piedmont is a plateau region located in the eastern United States between the Atlantic Coastal Plain and the main Appalachian Mountains, stretching from New Jersey in the north to central Alabama in the south. The Piedmont province is a physiographic province of the larger Appalachian division...

, New South
New South
New South, New South Democracy or New South Creed is a phrase that has been used intermittently since the American Civil War to describe the American South, after 1877. The term "New South" is used in contrast to the Old South of the plantation system of the antebellum period.The term has been used...

, South Atlantic States
South Atlantic States
The South Atlantic United States form one of the nine Census Bureau Divisions within the United States that are recognized by the United States Census Bureau....

, I-85 Corridor
I-85 Corridor
The I-85 Corridor is a multi-state region that follows Interstate 85 across the Southeastern United States. It stretches from Montgomery, Alabama to Petersburg, Virginia...

, Piedmont Crescent
Piedmont Crescent
The Piedmont Crescent, also known as the Piedmont Urban Crescent, is a large, polycentric urbanized region in the U.S. state of North Carolina that forms the northern section of the rapidly developing I-85 Corridor megalopolis in the southeastern United States...

Southern California Los Angeles
Los Ángeles
Los Ángeles is the capital of the province of Biobío, in the commune of the same name, in Region VIII , in the center-south of Chile. It is located between the Laja and Biobío rivers. The population is 123,445 inhabitants...

, Orange County
Orange County, California
Orange County is a county in the U.S. state of California. Its county seat is Santa Ana. As of the 2010 census, its population was 3,010,232, up from 2,846,293 at the 2000 census, making it the third most populous county in California, behind Los Angeles County and San Diego County...

 (Anaheim-Santa Ana
Santa Ana, California
Santa Ana is the county seat and second most populous city in Orange County, California, and with a population of 324,528 at the 2010 census, Santa Ana is the 57th-most populous city in the United States....

-Irvine
Irvine, California
Irvine is a suburban incorporated city in Orange County, California, United States. It is a planned city, mainly developed by the Irvine Company since the 1960s. Formally incorporated on December 28, 1971, the city has a population of 212,375 as of the 2010 census. However, the California...

), Inland Empire
Inland Empire (California)
The Inland Empire is a region in Southern California. The region sits directly east of the Los Angeles metropolitan area. The Inland Empire most commonly is used in reference to the U.S. Census Bureau's federally-defined Riverside-San Bernardino-Ontario metropolitan area, which covers more than...

 (San Bernardino
San Bernardino, California
San Bernardino is a city located in the Riverside-San Bernardino metropolitan area , and serves as the county seat of San Bernardino County, California, United States...

-Riverside
Riverside, California
Riverside is a city in Riverside County, California, United States, and the county seat of the eponymous county. Named for its location beside the Santa Ana River, it is the largest city in the Riverside-San Bernardino-Ontario metropolitan area of Southern California, 4th largest inland California...

), San Diego–Tijuana (San Diego-Tijuana
Tijuana
Tijuana is the largest city on the Baja California Peninsula and center of the Tijuana metropolitan area, part of the international San Diego–Tijuana metropolitan area. An industrial and financial center of Mexico, Tijuana exerts a strong influence on economics, education, culture, art, and politics...

), Las Vegas
Las Vegas, Nevada
Las Vegas is the most populous city in the U.S. state of Nevada and is also the county seat of Clark County, Nevada. Las Vegas is an internationally renowned major resort city for gambling, shopping, and fine dining. The city bills itself as The Entertainment Capital of the World, and is famous...

 
Southern California
Southern California
Southern California is a megaregion, or megapolitan area, in the southern area of the U.S. state of California. Large urban areas include Greater Los Angeles and Greater San Diego. The urban area stretches along the coast from Ventura through the Southland and Inland Empire to San Diego...

, California megapolitan areas, Sun Belt
Sun Belt
The Sun Belt or Spanish Belt is a region of the United States generally considered to stretch across the South and Southwest . Another rough boundary of the region is the area south of the 36th parallel, north latitude. It is the largest region which the U.S government does not recognize officially...

Texas Triangle Dallas–Fort Worth Metroplex (Dallas–Fort Worth
Fort Worth, Texas
Fort Worth is the 16th-largest city in the United States of America and the fifth-largest city in the state of Texas. Located in North Central Texas, just southeast of the Texas Panhandle, the city is a cultural gateway into the American West and covers nearly in Tarrant, Parker, Denton, and...

Arlington
Arlington, Texas
Arlington is a city in Tarrant County, Texas within the Dallas–Fort Worth metropolitan area. According to the 2010 census results, the city had a population of 365,438, making it the third largest municipality in the Metroplex...

), Houston, San Antonio, Austin
Austin, Texas
Austin is the capital city of the U.S. state of :Texas and the seat of Travis County. Located in Central Texas on the eastern edge of the American Southwest, it is the fourth-largest city in Texas and the 14th most populous city in the United States. It was the third-fastest-growing large city in...

, Oklahoma City
Oklahoma city
Oklahoma City is the capital and largest city of the U.S. state of Oklahoma.Oklahoma City may also refer to:*Oklahoma City metropolitan area*Downtown Oklahoma City*Uptown Oklahoma City*Oklahoma City bombing*Oklahoma City National Memorial...

, Tulsa
Tulsa, Oklahoma
Tulsa is the second-largest city in the state of Oklahoma and 46th-largest city in the United States. With a population of 391,906 as of the 2010 census, it is the principal municipality of the Tulsa Metropolitan Area, a region with 937,478 residents in the MSA and 988,454 in the CSA. Tulsa's...

 
Texas Triangle
Texas Triangle
The Texas Triangle is one of eleven so-called megaregions in the United States. These are urban areas that are much greater in scale than just a metropolitan statistical area , defined by the US Census Bureau. These regions also are known as megapolitan areas...

, TTC-35
Trans-Texas Corridor
The Trans-Texas Corridor was a transportation network that was discontinued in the planning and early construction stages in the U.S. State of Texas. The network, as originally envisioned, would have been composed of a network of supercorridors up to wide to carry parallel links of tollways,...

, International Mid-Continent Trade Corridor
International Mid-Continent Trade Corridor
The International Mid-Continent Trade Corridor is a supercorridor linking highways in Mexico, the United States, and Canada. The North American SuperCorridor Coalition promotes and lobbies for further development of the corridor...

, I-35 Corridor
I-35 Corridor
The I-35 Corridor, also known as the I-35 corridor, is a group of metropolitan areas in the southern Interior Plains region of the United States. The Texas cities contained within the I-35 Corridor are often referred to as a sub-megaregion of their own, often referred to as the Texaplex. It is part...

, Sun Belt
Sun Belt
The Sun Belt or Spanish Belt is a region of the United States generally considered to stretch across the South and Southwest . Another rough boundary of the region is the area south of the 36th parallel, north latitude. It is the largest region which the U.S government does not recognize officially...


Cities not included

Fifteen of the top 100 primary census statistical areas are not included in any of the 11 emerging megaregions.

None of these 15 have any professional sports teams in the major leagues. However, almost all of them have at least one college or university that is a member of NCAA Division I. College sports are widely popular in the U.S., and some programs in football and men's basketball enjoy followings comparable to those of major-league teams. One especially notable example, located in one of the listed areas, is the University of Kentucky men's basketball team
Kentucky Wildcats men's basketball
The Kentucky Wildcats men's basketball team, representing the University of Kentucky, is the winningest in the history of college basketball, both in all-time wins and all-time winning percentage. Kentucky's all-time record currently stands at 2058–647...

.
Southwest
Southwestern United States
The Southwestern United States is a region defined in different ways by different sources. Broad definitions include nearly a quarter of the United States, including Arizona, California, Colorado, Nevada, New Mexico, Oklahoma, Texas and Utah...

 
El Paso, TX MSA
El Paso, Texas
El Paso, is a city in and the county seat of El Paso County, Texas, United States, and lies in far West Texas. In the 2010 census, the city had a population of 649,121. It is the sixth largest city in Texas and the 19th largest city in the United States...

 (see also El Paso-Juárez)
Hawaii
Hawaii
Hawaii is the newest of the 50 U.S. states , and is the only U.S. state made up entirely of islands. It is the northernmost island group in Polynesia, occupying most of an archipelago in the central Pacific Ocean, southwest of the continental United States, southeast of Japan, and northeast of...

 
Honolulu, HI MSA
Honolulu County, Hawaii
The City and County of Honolulu is a consolidated city–county located in the U.S. state of Hawaii. The municipality and county includes both the urban district of Honolulu and the rest of the island of Oahu, as well as several minor outlying islands, including all of the Northwestern Hawaiian...

Mississippi Valley  Des Moines-Newton-Pella, IA CSA
Des Moines metropolitan area
The Des Moines metropolitan area, officially known as the Des Moines-West Des Moines Metropolitan Statistical Area , consists of five counties in central Iowa, United States: Polk, Dallas, Warren, Madison, and Guthrie...

, Omaha-Council Bluffs-Fremont, NE-IA CSA, Little Rock-North Little Rock-Pine Bluff, AR CSA, Jackson-Yazoo City, MS CSA
Ohio Valley
Ohio River
The Ohio River is the largest tributary, by volume, of the Mississippi River. At the confluence, the Ohio is even bigger than the Mississippi and, thus, is hydrologically the main stream of the whole river system, including the Allegheny River further upstream...

 
Lexington-Fayette-Frankfort-Richmond, KY CSA
South Atlantic
South Atlantic States
The South Atlantic United States form one of the nine Census Bureau Divisions within the United States that are recognized by the United States Census Bureau....

 Coast
Charleston-North Charleston-Summerville, SC MSA, Augusta-Richmond County, GA-SC MSA
Upstate New York
Upstate New York
Upstate New York is the region of the U.S. state of New York that is located north of the core of the New York metropolitan area.-Definition:There is no clear or official boundary between Upstate New York and Downstate New York...

 
Syracuse-Auburn, NY CSA, Albany-Schenectady-Amsterdam, NY CSA
Capital District
New York's Capital District, also known as the Capital Region, is a region in upstate New York that generally refers to the four counties surrounding Albany, the capital of the state: Albany County, Schenectady County, Rensselaer County, and Saratoga County...


See also

  • Amalgamation (politics)
    Amalgamation (politics)
    A merger or amalgamation in a political or administrative sense is the combination of two or more political or administrative entities such as municipalities , counties, districts, etc. into a single entity. This term is used when the process occurs within a sovereign entity...

  • Combined Statistical Area
    Combined Statistical Area
    The United States Office of Management and Budget defines micropolitan and metropolitan statistical areas. Metropolitan and micropolitan statistical areas consist of one or more counties...

  • Conurbation
    Conurbation
    A conurbation is a region comprising a number of cities, large towns, and other urban areas that, through population growth and physical expansion, have merged to form one continuous urban and industrially developed area...

  • Consolidated city-county
    Consolidated city-county
    In United States local government, a consolidated city–county is a city and county that have been merged into one unified jurisdiction. As such it is simultaneously a city, which is a municipal corporation, and a county, which is an administrative division of a state...

  • Ecumenopolis
    Ecumenopolis
    Ecumenopolis is a word invented in 1967 by the Greek city planner Constantinos Doxiadis to represent the idea that in the future urban areas and megalopolises would eventually fuse and there would be a single continuous worldwide city as a...

  • Megacity
    Megacity
    A megacity is usually defined as a metropolitan area with a total population in excess of 10 million people. Some definitions also set a minimum level for population density . A megacity can be a single metropolitan area or two or more metropolitan areas that converge. The terms conurbation,...

  • Megalopolis (city type)
    Megalopolis (city type)
    A megalopolis is typically defined as a chain of roughly adjacent metropolitan areas. The term was used by Oswald Spengler in his 1918 book, The Decline of the West, and Lewis Mumford in his 1938 book, The Culture of Cities, which described it as the first stage in urban overdevelopment and...

  • Metroplex
  • Metropolis
    Metropolis
    A metropolis is a very large city or urban area which is a significant economic, political and cultural center for a country or region, and an important hub for regional or international connections and communications...

  • Metropolitan Statistical Area
  • Micropolitan Statistical Area
The source of this article is wikipedia, the free encyclopedia.  The text of this article is licensed under the GFDL.
 
x
OK