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Mid-Atlantic (United States)

The Mid-Atlantic is a region of the United States located in the overlap between the Northeastern and Southeastern states of the United States. Its exact definition differs upon source, but the region typically includes Delaware, the District of Columbia, Maryland, New Jersey, New York, Pennsylvania, Virginia, and West Virginia[3] with other sources including or excluding other states or areas in the Northeast and Southeast.[3][4][5][6][7][8][9] The region has its origin in the Middle Colonies of the 18th century, its states being among the Thirteen Colonies of pre-revolutionary British America. As of the 2020 census, the region had a population of 60,783,913, representing slightly over 18% of the nation's population.

Mid-Atlantic

191,299.86 sq mi (495,464.4 km2)

174,468.45 sq mi (451,871.2 km2)

16,831.41 sq mi (43,593.2 km2)  8.80%

60,783,913

320/sq mi (120/km2)

$5.233 trillion

The Mid-Atlantic region played an instrumental and historic role in the nation's founding and the development of the nation. Each of the seven states were members of the Thirteen Colonies that sent delegates to the Second Continental Congress, which assembled in Philadelphia and unanimously adopted the Declaration of Independence, and formalized the Continental Army under George Washington's command during the American Revolutionary War. Following independence, the states again gathered in Philadelphia at the Constitutional Convention, in 1788, where they ratified the United States Constitution, which remains the oldest and longest-standing written and codified national constitution in force in the world.[10]


The Mid-Atlantic region was settled during the colonial era between the early 17th century and the conclusion of the American Revolutionary War in 1783 by European Americans of primarily Dutch, German, Swedish, English, and other Western European ethnicities. Religious pluralism and freedoms existed in the original Thirteen Colonies and were particularly prevalent in Province of Pennsylvania and the geographic region that ultimately broke from Pennsylvania to form the Delaware Colony. Among the 13 colonies, the Province of Maryland was the only colony with a substantial Catholic population.


Following the American Revolutionary War, the Mid-Atlantic region hosted each of the historic capitals of the United States. The nation's capital was constructed in Washington, D.C. in the late 18th century, and relocated there from Philadelphia in 1800.


In the early part of the 19th century, New York and Pennsylvania overtook Virginia as the nation's two most populous states, and the Mid-Atlantic region overtook New England as the most important trading and industrial center in the nation. During this period, large numbers of German, Irish, Italian, Jewish, Polish, and other immigrants arrived in the region's coastal cities, including Baltimore, Newark, New York City, Philadelphia, and interior cities such as Pittsburgh, and Rochester, Albany, and Buffalo, with their skyscrapers and subways, which emerged as icons of modernity and American economic and cultural power in the 20th century.


In the late 19th century, the region played a vital and historic role in the development of American culture, commerce, trade, and industry sectors. Historian Frederick Jackson Turner labeled it "the typically American."[11]


The Northeast Corridor and Interstate 95 in the region link an almost contiguous urban sprawl, which includes large and small cities and their respective suburbs and forms the Northeast megalopolis, one of the world's most important concentrations of finance, media, communications, education, medicine, and technology. The Mid-Atlantic is a relatively affluent region of the nation; nearly half of the nation's 100 highest-income counties based on median household income are located in the Mid-Atlantic, and 33 of the nation's top 100 counties based on per capita income are in the region. Most of the Mid-Atlantic states rank among the 15 highest-income states in the nation by both median household income and per capita income.


The region is home to eight of the top 25 ranked universities in the nation: Cornell University in Ithaca, New York, Columbia University and NYU in New York City, Princeton University in Princeton, New Jersey, the University of Pennsylvania in Philadelphia, Carnegie Mellon University in Pittsburgh, Johns Hopkins University in Baltimore, Georgetown University in Washington, D.C., and the University of Virginia in Charlottesville, Virginia according to U.S. News & World Report Best Colleges Ranking.[12][13][14]

A USGS fact sheet on the Mid-Atlantic region's groundwater[19]

A USGS fact sheet on the Mid-Atlantic region's groundwater[19]

An 1897 map displaying a broad definition of the Mid-Atlantic region

An 1897 map displaying a broad definition of the Mid-Atlantic region

An 1886 Harper's School Geography map showing the region, which excludes Virginia and West Virginia

An 1886 Harper's School Geography map showing the region, which excludes Virginia and West Virginia

The U.S. Census Bureau's geographic definition of the Mid-Atlantic includes three states, New Jersey, New York, and Pennsylvania

The U.S. Census Bureau's geographic definition of the Mid-Atlantic includes three states, New Jersey, New York, and Pennsylvania

Definitions of the geographic components of the Mid-Atlantic region differ slightly among sources.[15] Generally speaking, the region is inclusive of the states and federal district of Delaware, the District of Columbia, Maryland, New Jersey, New York, Pennsylvania, Virginia, and West Virginia, with some additional sources including or excluding other areas in parts of the Northeast region and the South Atlantic states, for practical reasons.[3][4][5][6][7][8][9]


The United States Census Bureau defines the Mid-Atlantic as a sub-region of the Northeast and only includes New Jersey, New York, and Pennsylvania.[5] The Bureau of Labor Statistics excludes New York;[3] the Environmental Protection Agency excludes New York and New Jersey;[7] and the U.S. Department of Transportation - United States Maritime Administration includes North Carolina.[8] In 2004, the United States Geological Survey within the context of Ground-Water Vulnerability to Nitrate Contamination, defined the region as including Delaware, Maryland, Pennsylvania, Virginia, and Washington, D.C., and parts of New Jersey, New York, and North Carolina.[6]


West Virginia and Virginia are atypical of this region in a few ways. These states both primarily lie within the Southern American dialect region,[16] and the major religious tradition is largely Evangelical Christian, with 30% in Virginia and 39% in West Virginia identifying as evangelicals.[17] Although a few of West Virginia's eastern panhandle counties are considered part of the Washington metropolitan area, the major portion of the state is rural and there are no major or even large cities.[18]

Bold denotes election winner.

Culture[edit]

Sports[edit]

The Mid-Atlantic is home to 33 professional sports franchises in the five major leagues and the two most prominent women's professional leagues:

Notable golf tournaments in the Mid-Atlantic include the Barclays, Quicken Loans National and Atlantic City LPGA Classic.


Two high-level professional tennis tournaments are held in the region. The US Open, held in New York, is one of the four Grand Slam tennis tournaments, whereas the Washington Open is part of the ATP Tour 500 series and WTA 250 series.


Notable motorsports tracks include Watkins Glen International, Dover Motor Speedway and Pocono Raceway, which have hosted Formula One, IndyCar, NASCAR, World Sportscar Championship and IMSA races. Also, the Englishtown and Reading drag strips such have hosted NHRA national events. Pimlico Race Course at Baltimore and Belmont Park at New York host the Preakness Stakes and Belmont Stakes horse races, which are part of the Triple Crown of Thoroughbred Racing.

List of regions of the United States

Bodle, Wayne, "The Mid-Atlantic and the American Revolution", Pennsylvania History 82 (Summer 2015), 282–99.

Heineman, Kenneth J., "The Only Things You Will Find in the Middle of the Road are Double Yellow Lines, Dead Frogs, and Electoral Leverage: Mid-Atlantic Political Culture and Influence across the Centuries", Pennsylvania History, 82 (Summer 2015), 300–13.

Landsman, Ned C. Crossroads of Empire: The Middle Colonies in British North America (2010)

Longhurst, James. "'Typically American': Trends in the History of Environmental Politics and Policy in the Mid-Atlantic Region". Pennsylvania History: A Journal of Mid-Atlantic Studies 79.4 (2012): 409–427.

Magoc, Chris J., "In Search of a Useable—and Hopeful—Environmental Narrative in the Mid-Atlantic", Pennsylvania History, 82 (Summer 2015), 314–28.

Mancall, Peter C., Joshua L. Rosenbloom, and Thomas Weiss. "Exports from the Colonies and States of the Middle Atlantic Region 1720–1800". Research in Economic History 29 (2013): 257–305.

Marzec, Robert. The Mid-Atlantic Region: The Greenwood Encyclopedia of American Regional Cultures (2004)

Richter, Daniel K, "Mid-Atlantic Colonies, R.I.P.", Pennsylvania History, 82 (Summer 2015), 257–81.

Rosenbloom, Joshua L., and Thomas Weiss. "Economic growth in the Mid-Atlantic region: Conjectural estimates for 1720 to 1800". Explorations in Economic History 51 (2014): 41–59.