Demographic history of the United States
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This article is about the demographic
Demographics of the United States
As of today's date, the United States has a total resident population of , making it the third most populous country in the world. It is a very urbanized population, with 82% residing in cities and suburbs as of 2008 . This leaves vast expanses of the country nearly uninhabited...

 history of the United States
.

Historical population

Census
year
Population

1610 3,800
1620 4,100
1630 4,600
1640 ?
1650 50,400
1660 ?
1670 111,900
1680 ?
1690 210,400
1700 250,900
1710 ?
1720 466,200
1730 ?
1740 905,600
1750 1,170,800
1760 ?
1770 2,148,100
1780 2,780,400
1790  3,929,214
1800  5,308,483
1810  7,239,881
1820  9,638,453
1830  12,866,020
1840  17,069,453
1850  23,191,876
1860  31,443,321
1870  38,558,371
1880  50,189,209
1890  62,979,766
1900  76,212,168
1910  92,228,496
1920  106,021,537
1930  123,202,624
1940  132,164,569
1950  151,325,798
1960  179,323,175
1970  203,211,926
1980  226,545,805
1990  248,709,873
2000  281,421,906
2010  308,745,538


Age at marriage

1890: Men 26.1, Women 22.0

1900: Men 25.9, Women 21.9

1910: Men 25.1, Women 21.6

1920: Men 24.6, Women 21.2

1930: Men 24.3, Women 21.3

1940: Men 24.5, Women 21.5

1950: Men 22.8, Women 20.3

1960: Men 22.8, Women 20.3

1970: Men 23.2, Women 20.6

1980: Men 24.7, Women 22.0

1990: Men 26.1, Women 23.9

2000: Men 26.8, Women 25.1

2007: Men 27.5, Women 25.6

According to the U.S. Census Bureau, in 1959, 47% of weddings were to women under the age of 19, and 51.5% of 20-year-old females had ever married.

Earlier Colonial era

Nearly all commercial activity was run in small privately owned businesses with good credit both at home and in England being essential since they were often cash poor. Most settlements were nearly independent of trade with Britain as most grew or made nearly everything they needed—the average cost of imports per most households was only about 5-15 English pounds per year. Most settlements were created by complete family groups with several generations often present in each settlement. Probably close to 80% of the families owned the land they lived and farmed on. They nearly all used English Common Law as their basic code of law and, except for the Dutch and Germans, spoke some dialect of English. They established their own popularly elected governments and courts and were, within a few years, mostly self governing, self supporting and self replicating.

Nearly all colonies and, later, states in the United States were settled by migration from another colony or state, as foreign immigration usually only played a minor role after the zo caca chien senti gyet maman ou ic nan gyetinitial settlements were started. Many new immigrants did end up on the frontiers as that was where the land was usually the cheapest.

New England

The New England colonists included more educated men as well as many skilled farmers, tradesmen and craftsmen. They were mostly farmers and settled in small villages for common religious activity. Shipbuilding, commerce, and fisheries were important in coastal towns. New England's healthy climate (the cold winters killed the mosquitoes and other disease-bearing insects), and abundant food supply resulted in the lowest death rate and highest birth rate of any place in the world (marriage was expected and birth control was not, and a much higher than average number of children and mothers survived).

The eastern and northern frontier around the initial New England settlements was mainly settled by the Yankee
Yankee
The term Yankee has several interrelated and often pejorative meanings, usually referring to people originating in the northeastern United States, or still more narrowly New England, where application of the term is largely restricted to descendants of the English settlers of the region.The...

 descendants of the original New Englanders. Emigration to the New England colonies after 1640 and the start of the English Civil War
English Civil War
The English Civil War was a series of armed conflicts and political machinations between Parliamentarians and Royalists...

 decreased to less than 1% (about equal to the death rate) in nearly all years prior to 1845. The rapid growth of the New England colonies (total population ~700,000 by 1790) was almost entirely due to the high birth rate (>3%) and low death rate (<1%) per year.

Middle Colonies

The middle colonies' settlements were scattered west of 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...

, New York
New York
New York is a state in the Northeastern region of the United States. It is the nation's third most populous state. New York is bordered by New Jersey and Pennsylvania to the south, and by Connecticut, Massachusetts and Vermont to the east...

 (est. 1626 by Dutch, taken over by the English in 1664) and Philadelphia, Pennsylvania
Pennsylvania
The Commonwealth of Pennsylvania is a U.S. state that is located in the Northeastern and Mid-Atlantic regions of the United States. The state borders Delaware and Maryland to the south, West Virginia to the southwest, Ohio to the west, New York and Ontario, Canada, to the north, and New Jersey to...

 (est. 1682). The Dutch-started colony of New York had the most eclectic collection of residents from many different nations and prospered as a major trading and commercial center after about 1700. The Pennsylvania colonial center was dominated by the Quakers for decades after they emigrated there, mainly from the North Midlands of England, from about 1680 to 1725. The main commercial center of Philadelphia was run mostly by prosperous Quakers, supplemented by many small farming and trading communities with strong German contingents located in the Delaware River valley.

Many more settlers arrived in the middle colonies starting in about 1680, when Pennsylvania was founded and many Protestant sects were encouraged to settle there for freedom of religion and good, cheap land. These settlers were of about 60% British and 33% German extraction. By 1780 in New York about 17% of the population were descendants of Dutch settlers. The rest were mostly English with a wide mixture of other Europeans and about 6% Blacks. New Jersey and Delaware had a majority of British with 7-11% German-descended colonists, about a 6% black population, and a small contingent of Swedish descendants of New Sweden
New Sweden
New Sweden was a Swedish colony along the Delaware River on the Mid-Atlantic coast of North America from 1638 to 1655. Fort Christina, now in Wilmington, Delaware, was the first settlement. New Sweden included parts of the present-day American states of Delaware, New Jersey, and Pennsylvania....

. Nearly all were at least third-generation natives.

Frontier

The colonial western frontier was mainly settled from about 1717 to 1775 by mostly Presbyterian settlers from northern England border lands, Scotland, and Northern Ireland, fleeing bad times and persecution in those areas. Most initially landed in family groups in Philadelphia or Baltimore but soon migrated to the western frontier where land was cheaper and restrictions less onerous.

Natural growth

All the colonies, after they were started, grew mostly by natural growth, with foreign born populations rarely exceeding 10% in isolated instances. The last significant colonies to be settled mainly by immigrants were Pennsylvania in the early 18th century and Georgia and the Borderlands in the late 18th century, as migration (not immigration) continued to provide nearly all the settlers for each new colony or state. This pattern would continue throughout U.S. history. The extent of colonial settlements by 1800 is shown by this map from the University of Texas map collection.

stimated Population of American Colonies 1620 to 1780

  • Series Z-19 U.S. Census

  • Year 1780 1760 1740 1720 1700 1680 1660 1640 1620

    Tot Pop. 2,780,400 1,593,600 905,600 466,200 250,900 151,500 75,100 26,600 500

    Maine
    Maine
    Maine is a state in the New England region of the northeastern United States, bordered by the Atlantic Ocean to the east and south, New Hampshire to the west, and the Canadian provinces of Quebec to the northwest and New Brunswick to the northeast. Maine is both the northernmost and easternmost...

     -1
    49,100 20,000 - - - - - 900 -
    New Hampshire
    New Hampshire
    New Hampshire is a state in the New England region of the northeastern United States of America. The state was named after the southern English county of Hampshire. It is bordered by Massachusetts to the south, Vermont to the west, Maine and the Atlantic Ocean to the east, and the Canadian...

    -2
    87,800 39,100 23,300 9,400 5,000 2,000 1,600 1,100 -
    Vermont
    Vermont
    Vermont is a state in the New England region of the northeastern United States of America. The state ranks 43rd in land area, , and 45th in total area. Its population according to the 2010 census, 630,337, is the second smallest in the country, larger only than Wyoming. It is the only New England...

     -3
    47,600 - - - - - - - -
    Plymouth -4 - - - - - 6,400 2,000 1,000 100
    Massachusetts
    Massachusetts
    The Commonwealth of Massachusetts is a state in the New England region of the northeastern United States of America. It is bordered by Rhode Island and Connecticut to the south, New York to the west, and Vermont and New Hampshire to the north; at its east lies the Atlantic Ocean. As of the 2010...

    268,600 202,600 151,600 91,000 55,900 39,800 20,100 8,900
    Rhode Island
    Rhode Island
    The state of Rhode Island and Providence Plantations, more commonly referred to as Rhode Island , is a state in the New England region of the United States. It is the smallest U.S. state by area...

    52,900 45,500 25,300 11,700 5,900 3,000 1,500 300 -
    Connecticut
    Connecticut
    Connecticut is a state in the New England region of the northeastern United States. It is bordered by Rhode Island to the east, Massachusetts to the north, and the state of New York to the west and the south .Connecticut is named for the Connecticut River, the major U.S. river that approximately...

    206,700 142,500 89,600 58,800 26,000 17,200 8,000 1,500 -
    New York
    New York
    New York is a state in the Northeastern region of the United States. It is the nation's third most populous state. New York is bordered by New Jersey and Pennsylvania to the south, and by Connecticut, Massachusetts and Vermont to the east...

    210,500 117,100 63,700 36,900 19,100 9,800 4,900 1,900 -
    New Jersey
    New Jersey
    New Jersey is a state in the Northeastern and Middle Atlantic regions of the United States. , its population was 8,791,894. It is bordered on the north and east by the state of New York, on the southeast and south by the Atlantic Ocean, on the west by Pennsylvania and on the southwest by Delaware...

    139,600 93,800 51,400 29,800 14,000 3,400 - - -
    Pennsylvania
    Pennsylvania
    The Commonwealth of Pennsylvania is a U.S. state that is located in the Northeastern and Mid-Atlantic regions of the United States. The state borders Delaware and Maryland to the south, West Virginia to the southwest, Ohio to the west, New York and Ontario, Canada, to the north, and New Jersey to...

    327,300 183,700 85,600 31,000 18,000 700 - - -
    Delaware
    Delaware
    Delaware is a U.S. state located on the Atlantic Coast in the Mid-Atlantic region of the United States. It is bordered to the south and west by Maryland, and to the north by Pennsylvania...

     
    45,400 33,300 19,900 5,400 2,500 1,000 500 - -
    Maryland
    Maryland
    Maryland is a U.S. state located in the Mid Atlantic region of the United States, bordering Virginia, West Virginia, and the District of Columbia to its south and west; Pennsylvania to its north; and Delaware to its east...

    245,500 162,300 116,100 66,100 29,600 17,900 8,400 500 -
    Virginia
    Virginia
    The Commonwealth of Virginia , is a U.S. state on the Atlantic Coast of the Southern United States. Virginia is nicknamed the "Old Dominion" and sometimes the "Mother of Presidents" after the eight U.S. presidents born there...

    538,000 339,700 180,400 87,800 58,600 43,600 27,000 10,400 400
    North Carolina
    North Carolina
    North Carolina is a state located in the southeastern United States. The state borders South Carolina and Georgia to the south, Tennessee to the west and Virginia to the north. North Carolina contains 100 counties. Its capital is Raleigh, and its largest city is Charlotte...

    270,100 110,400 51,800 21,300 10,700 5,400 1,000 - -
    South Carolina
    South Carolina
    South Carolina is a state in the Deep South of the United States that borders Georgia to the south, North Carolina to the north, and the Atlantic Ocean to the east. Originally part of the Province of Carolina, the Province of South Carolina was one of the 13 colonies that declared independence...

    180,000 94,100 45,000 17,000 5,700 1,200 - - -
    Georgia
    Georgia (U.S. state)
    Georgia is a state located in the southeastern United States. It was established in 1732, the last of the original Thirteen Colonies. The state is named after King George II of Great Britain. Georgia was the fourth state to ratify the United States Constitution, on January 2, 1788...

    56,100 9,600 2,000 - - - - - -
    Kentucky
    Kentucky
    The Commonwealth of Kentucky is a state located in the East Central United States of America. As classified by the United States Census Bureau, Kentucky is a Southern state, more specifically in the East South Central region. Kentucky is one of four U.S. states constituted as a commonwealth...

    45,000 - - - - - - - -
    Tennessee
    Tennessee
    Tennessee is a U.S. state located in the Southeastern United States. It has a population of 6,346,105, making it the nation's 17th-largest state by population, and covers , making it the 36th-largest by total land area...

    10,000 - - - - - - -

    Year 1780 1760 1740 1720 1700 1680 1660 1640 1620
    New Eng. (ME to CT) 712,800 449,600 289,700 170,900 92,800 68,500 33,200 13,700 100
    % Black -5 2.0% 2.8% 2.9% 2.3% 1.8% 0.7% 1.8% 1.5% 0.0%
    Middle (NY to DE) 722,900 427,900 220,600 103,100 53,600 14,900 5,400 1,900 -
    % Black -6 5.9% 6.8% 7.5% 10.5% 6.9% 10.1% 11.1% 10.5% 0.0%
    South (MD to TN) 1,344,700 716,000 395,300 192,300 104,600 68,100 36,400 11,000 400
    % Black -7 38.6% 39.7% 31.6% 28.1% 21.5% 7.3% 4.7% 1.8% 0.0%


    1. Maine
      Maine
      Maine is a state in the New England region of the northeastern United States, bordered by the Atlantic Ocean to the east and south, New Hampshire to the west, and the Canadian provinces of Quebec to the northwest and New Brunswick to the northeast. Maine is both the northernmost and easternmost...

       was part of Massachusetts from about 1652 to 1820, when it was granted statehood.
    2. New Hampshire
      New Hampshire
      New Hampshire is a state in the New England region of the northeastern United States of America. The state was named after the southern English county of Hampshire. It is bordered by Massachusetts to the south, Vermont to the west, Maine and the Atlantic Ocean to the east, and the Canadian...

       was part of Massachusetts until about 1685, when it was split off and established under a British appointed governor. It was one of the original 13 colonies.
    3. Vermont
      Vermont
      Vermont is a state in the New England region of the northeastern United States of America. The state ranks 43rd in land area, , and 45th in total area. Its population according to the 2010 census, 630,337, is the second smallest in the country, larger only than Wyoming. It is the only New England...

       was contested between the French and British settlers until the French and Indian war
      French and Indian War
      The French and Indian War is the common American name for the war between Great Britain and France in North America from 1754 to 1763. In 1756, the war erupted into the world-wide conflict known as the Seven Years' War and thus came to be regarded as the North American theater of that war...

       (1758–1765) drove out the French authorities. The territory was then disputed between Massachusetts, New York and New Hampshire until the settlers declared their independence from all of them and were accepted as the 14th state in 1791 and participated in the 1790 census a year late.
    4. Plymouth, Massachusetts despite being the first permanent New England settlement, lost its charter in 1690 and became part of the Massachusetts colony.
    5. By 1784 all slavery in the New England states was either completely prohibited or transitioning to its total prohibition.
    6. By 1804 all slavery in the Middle colonies (except Delaware [6.6% Black]) was either completely prohibited or was transitioning to its total prohibition.
    7. All slavery was prohibited in the entire U.S. in 1865 by the 13th amendment to the constitution.

    Population in 1790

    According to the source, The Source: A Guidebook of American Genealogy by Kory L. Meyerink and Loretto Dennis Szucs, the following were the countries of origin for new arrivals coming to the United States before 1790. The regions marked * were part of Great Britain. The ancestry of the 3.9 million population in 1790 has been estimated by various sources by sampling last names in the 1790 census and assigning them a country of origin. The Irish in the 1790 census were mostly Scots Irish
    Ulster-Scots
    The Ulster Scots are an ethnic group in Ireland, descended from Lowland Scots and English from the border of those two countries, many from the "Border Reivers" culture...

    . The French were mostly Huguenot
    Huguenot
    The Huguenots were members of the Protestant Reformed Church of France during the 16th and 17th centuries. Since the 17th century, people who formerly would have been called Huguenots have instead simply been called French Protestants, a title suggested by their German co-religionists, the...

    s. The total U.S. Catholic population in 1790 was probably less than 5%. The Indian population inside territorial U.S. 1790 boundaries was less than 100,000.

    U.S. Historical Populations
    Country Immigrants Before 1790 Population 1790 -1

    Africa
    Africa
    Africa is the world's second largest and second most populous continent, after Asia. At about 30.2 million km² including adjacent islands, it covers 6% of the Earth's total surface area and 20.4% of the total land area...

     -2
    360,000 757,000
    England* 230,000 2,100,000
    Ulster
    Ulster
    Ulster is one of the four provinces of Ireland, located in the north of the island. In ancient Ireland, it was one of the fifths ruled by a "king of over-kings" . Following the Norman invasion of Ireland, the ancient kingdoms were shired into a number of counties for administrative and judicial...

     Scot-Irish*
    135,000 300,000
    Germany -3 103,000 270,000
    Scotland
    Scotland
    Scotland is a country that is part of the United Kingdom. Occupying the northern third of the island of Great Britain, it shares a border with England to the south and is bounded by the North Sea to the east, the Atlantic Ocean to the north and west, and the North Channel and Irish Sea to the...

    *
    48,500 150,000
    Ireland
    Ireland
    Ireland is an island to the northwest of continental Europe. It is the third-largest island in Europe and the twentieth-largest island on Earth...

    *
    8,000 (Incl. in Scot-Irish)
    Netherlands
    Netherlands
    The Netherlands is a constituent country of the Kingdom of the Netherlands, located mainly in North-West Europe and with several islands in the Caribbean. Mainland Netherlands borders the North Sea to the north and west, Belgium to the south, and Germany to the east, and shares maritime borders...

     
    6,000 100,000
    Wales
    Wales
    Wales is a country that is part of the United Kingdom and the island of Great Britain, bordered by England to its east and the Atlantic Ocean and Irish Sea to its west. It has a population of three million, and a total area of 20,779 km²...

    *
    4,000 10,000
    France 3,000 15,000
    Jews -4 1,000 2,000
    Sweden
    Sweden
    Sweden , officially the Kingdom of Sweden , is a Nordic country on the Scandinavian Peninsula in Northern Europe. Sweden borders with Norway and Finland and is connected to Denmark by a bridge-tunnel across the Öresund....

     
    500 2,000
    Other -5 50,000 200,000

    Total -6 950,000 3,900,000


    1. Data From Ann Arbor, MI: Inter-university Consortium for Political and Social Research (ICPS)
    2. Several West African regions were the home to most African immigrants. Population from US 1790 Census
    3. Germany in this time period consists of a large number of separate countries, the largest of which was Prussia.
    4. Jewish settlers were from several European countries.
    5. The Other category probably contains mostly English ancestry settlers; but the loss of several states detailed census records in the burning of Washington D.C. in the War of 1812
      War of 1812
      The War of 1812 was a military conflict fought between the forces of the United States of America and those of the British Empire. The Americans declared war in 1812 for several reasons, including trade restrictions because of Britain's ongoing war with France, impressment of American merchant...

       makes estimating closer difficult. Nearly all states that lost their 1790 (and 1800) census records have tried to reconstitute their original census from tax records etc. with various degrees of success. The summaries of the 1790 and 1800 census from all states survived.
    6. The Total is the total immigration over the approximately 130 year span of colonial existence of the U.S. colonies as found in the 1790 census. Many of the colonists, especially from the New England colonies, are already into their fifth generation of being in America. At the time of the American Revolution
      American Revolution
      The American Revolution was the political upheaval during the last half of the 18th century in which thirteen colonies in North America joined together to break free from the British Empire, combining to become the United States of America...

       the foreign born population is estimated to be from 300,000 to 400,000.


    The 1790 population already reflects the approximate 50,000 “Loyalists or Tories”, who emigrated to Canada at the end of the American Revolution and the less than 10,000 more who emigrated to other British possessions including England.

    Already by 1790 the ancestry question is starting to become meaningless as many people from many different countries intermarry in each generation and nearly all these ancestries are starting to merge to become American. The total white population in 1790 was about 80% British ancestry and roughly doubles by natural increase every 25 years. The native born population of the U.S. has never fallen below 85% of the population after about 1675–100 years before the American Revolution
    American Revolution
    The American Revolution was the political upheaval during the last half of the 18th century in which thirteen colonies in North America joined together to break free from the British Empire, combining to become the United States of America...

    .

    Relentless population expansion pushed the U.S. frontier to the Pacific by 1848. Given the U.S. geography, most immigrants came long distances to settle in the U.S.. However the Irish leaving Canada for the US in the 1840s, the French Canadians who came down from Quebec after 1860, and the Mexicans who came north after 1911, found it easy to move back and forth.

    Immigration 1790 to 1849

    In the early years of the U.S., immigration was only about 6000 people a year on average, including French refugees from the slave revolt in Haiti
    Haiti
    Haiti , officially the Republic of Haiti , is a Caribbean country. It occupies the western, smaller portion of the island of Hispaniola, in the Greater Antillean archipelago, which it shares with the Dominican Republic. Ayiti was the indigenous Taíno or Amerindian name for the island...

    . The French Revolution
    French Revolution
    The French Revolution , sometimes distinguished as the 'Great French Revolution' , was a period of radical social and political upheaval in France and Europe. The absolute monarchy that had ruled France for centuries collapsed in three years...

    , starting in 1789, and the Napoleonic Wars
    Napoleonic Wars
    The Napoleonic Wars were a series of wars declared against Napoleon's French Empire by opposing coalitions that ran from 1803 to 1815. As a continuation of the wars sparked by the French Revolution of 1789, they revolutionised European armies and played out on an unprecedented scale, mainly due to...

     from 1792 to 1814 severely limited immigration from Europe. The War of 1812
    War of 1812
    The War of 1812 was a military conflict fought between the forces of the United States of America and those of the British Empire. The Americans declared war in 1812 for several reasons, including trade restrictions because of Britain's ongoing war with France, impressment of American merchant...

     (1812–1814) with Britain again prevented any significant immigration. By 1808 Congress had banned the importation of slaves, slowing that human traffic to a trickle.

    After 1820 immigration gradually increased. For the first time federal records, including ship passenger lists, were kept for immigration. Total immigration for one year in 1820 was 8,385, gradually building to 23,322 by 1830, with 143,000 total immigrating during the intervening decade. From 1831 to 1840 immigration increased greatly, to 599,000 total, as 207,000 Irish, even before the famine of 1845-49, started to emigrate in large numbers as Britain eased travel restrictions. 152,000 Germans, 76,000 British, and 46,000 French formed the next largest immigrant groups in that decade.

    From 1841 to 1850 immigration exploded to 1,713,000 total immigrants and at least 781,000 Irish, with the famine of 1845-1919 driving them, fled their homeland to escape poverty and death. In attempting to divert some of this traffic to help settle Canada, the British offered bargain fares of 15 shillings for transit to Canada, instead of the normal 5 pounds (100 shillings). Thousands of poor Irish took advantage of this offer and headed to Canada on what came to be called the "coffin ships" because of their high death rates. Once in Canada, many Irish walked across the border or caught an intercoastal freighter to the nearest major city in the United States - usually Boston or New York.

    Bad potato crops and failed revolutions struck the heart of Europe in 1848, contributing to the decade's total of 435,000 Germans, 267,000 British and 77,000 French immigrants to America. Bad times in Europe drove people out; land, relatives, freedom, opportunity, and jobs in America lured them in.

    Population and Foreign Born 1790 to 1849
    Census Population, Immigrants per Decade
    Census Population Immigrants-1 Foreign Born %

    1790 3,918,000 60,000
    1800 5,236,000 60,000
    1810 7,036,000 60,000
    1820 10,086,000 60,000
    1830 12,785,000 143,000 200,000 -2 1.6%
    1840 17,018,000 599,000 800,000 -2 4.7%
    1850 23,054,000 1,713,000 2,244,000 9.7%



    The number of immigrants from 1830 on are from immigration records. The census of 1850 was the first census in which place of birth was asked. It is probably a reasonable estimate that the foreign born population in the U.S. reached its minimum in about 1815 at something like 100,000, or 1.4% of the population. By 1815 most of the immigrants that arrived before the American Revolution
    American Revolution
    The American Revolution was the political upheaval during the last half of the 18th century in which thirteen colonies in North America joined together to break free from the British Empire, combining to become the United States of America...

     had passed on, and there had been almost no new immigration.
    1. The total number immigrating in each decade from 1790 to 1820 are estimates.
    2. The number foreign born in 1830 and 1840 decades are extrapolations.


    Nearly all population growth up to 1830 was by internal increase; about 98.5% of the population was native-born. By 1850, this had shifted to about 90% native-born. The first significant Catholic immigration started in the mid 1840s.

    The American West

    In 1848, the Treaty of Guadalupe Hidalgo
    Treaty of Guadalupe Hidalgo
    The Treaty of Guadalupe Hidalgo is the peace treaty, largely dictated by the United States to the interim government of a militarily occupied Mexico City, that ended the Mexican-American War on February 2, 1848...

    , concluding the Mexican War, extended U.S. citizenship to approximately 60,000 Mexican residents of the New Mexico
    New Mexico
    New Mexico is a state located in the southwest and western regions of the United States. New Mexico is also usually considered one of the Mountain States. With a population density of 16 per square mile, New Mexico is the sixth-most sparsely inhabited U.S...

     Territory and 10,000 living in California
    California
    California is a state located on the West Coast of the United States. It is by far the most populous U.S. state, and the third-largest by land area...

    . However, much like Texas, the Mexican government had encouraged immigration and settlement of these regions from groups in the United States and Europe. Approximately half of this population is estimated to have been of American origin. In 1849, the California Gold Rush
    California Gold Rush
    The California Gold Rush began on January 24, 1848, when gold was found by James W. Marshall at Sutter's Mill in Coloma, California. The first to hear confirmed information of the gold rush were the people in Oregon, the Sandwich Islands , and Latin America, who were the first to start flocking to...

     spurred significant immigration from Mexico, South America, China, Australia, Europe and caused a mass migration within the US, resulting in California gaining statehood in 1850, with a population of about 90,000.

    Rural flight

    Rural flight is the departure of excess populations (usually young men and women) from farm areas. In some cases whole families left, as in the Dust Bowl
    Dust Bowl
    The Dust Bowl, or the Dirty Thirties, was a period of severe dust storms causing major ecological and agricultural damage to American and Canadian prairie lands from 1930 to 1936...

     in the 1930s. Much of rural America has seen steady population decline since 1920.

    Black migration out of the South

    see Great Migration (African American)
    Great Migration (African American)
    The Great Migration was the movement of 6 million blacks out of the Southern United States to the Northeast, Midwest, and West from 1910 to 1970. Some historians differentiate between a Great Migration , numbering about 1.6 million migrants, and a Second Great Migration , in which 5 million or more...



    The Great Migration was the movement of millions African American
    African American
    African Americans are citizens or residents of the United States who have at least partial ancestry from any of the native populations of Sub-Saharan Africa and are the direct descendants of enslaved Africans within the boundaries of the present United States...

    s out of the rural Southern United States
    Southern United States
    The Southern United States—commonly referred to as the American South, Dixie, or simply the South—constitutes a large distinctive area in the southeastern and south-central United States...

     from 1914 to 1960. Most moved to large industrial cities, as well as to many smaller industrial cities. African-Americans moved as individuals or small groups. There was no government assistance. They migrated because of a variety of push and pull factors:

    Pull factors

    1. Income levels were much higher in the North, with far higher wages in the service sector.
    2. The enormous growth of war industries in WW1 and WW2 created new job openings for blacks—not in the factories but in the service jobs that new factory workers vacated;
    3. World War I
      World War I
      World War I , which was predominantly called the World War or the Great War from its occurrence until 1939, and the First World War or World War I thereafter, was a major war centred in Europe that began on 28 July 1914 and lasted until 11 November 1918...

       effectively put a halt to the flow of European immigrants to the industrial centers , causing shortages of workers in the factories.
    4. After 1940, as the U.S. rearmed for World War II
      World War II
      World War II, or the Second World War , was a global conflict lasting from 1939 to 1945, involving most of the world's nations—including all of the great powers—eventually forming two opposing military alliances: the Allies and the Axis...

       (see Homefront-United States-World War II), industrial production increased rapidly.
    5. The FEPC
      Fair Employment Practices Commission
      The Fair Employment Practices Commission implemented US Executive Order 8802, requiring that companies with government contracts not to discriminate on the basis of race or religion. It was intended to help African Americans and other minorities obtain jobs in the homefront industry...

       equal opportunity laws were more enforced in the North and West.

    Post-war baby boom

    In the years after WWII, the United States, as well as a number of other industrialized countries, experienced an unexpected sudden birth rate jump. The cause of the baby boom was millions of men from the US who had to fight in WWII which prevented women from starting families and women also had to take the place of men in the workplace. The millions of men coming back and couples eager to start families led to the sharp rise in the US birth rate. Since the men came back got jobs in the workplace again, women became strongly pressured to once again stay home to take care of the house and children and let their husbands be the breadwinner of the household. Women felt great pressure to be married by her early 20s or else she would be considered lonely later on in life.

    During the baby boom years, between 1946 and 1964, the birth rate doubled for third children and tripled for fourth children.

    The total fertility rate of the United States jumped from 2.49 in 1945 to 2.94 in 1946, a rise of 0.45 children therefore beginning the baby boom. It continued to rise throughout the 1940s to reach 3.10 in 1950 with a peak of 3.77 in 1957. Declining slowly thereafter to 3.65 in 1960 and finally a steep from decline after 1964, therefore ending the baby boom.


    The number of children aged 0–4 sprouted to 16,410,000 in 1950 from 11,000,000 in 1940, it continued into the 1960s where it peaked at 20,000,000 children under the age of 5.

    The number of children under 19 rose to 69 million in 1960 from 51 million in 1950, a 35.3% increase, while the proportion of the population rose to 38.8% up from 33.8% in 1950.

    Marriages

    According to statistics, the United States currently has the highest marriage rate in the developed world, as of 2008, with a marriage rate of 7.1 per 1,000 people or 2,162,000 marriages. The average age for first marriage for men is 27.4 and 25.6 years for women. http://www.cdc.gov/nchs/data/nvsr/nvsr57/nvsr57_19.htm The United States also has one of the highest proportions of people who do marry by age 40, which approximately 85% Americans are married at 40, compared to only 60% in Sweden.

    During the 1930s, the number of marriages and the marriage rate dropped steeply due to the Great Depression, but rebounded almost immediately after the Depression ended. Marriage rates increased and remained at high levels in the late 1930 to the mid 1940s. The number of marriages shot up to reach over 2 million in 1946, with a marriage rate of 16.4 per 1,000 people as WWII had ended. The average age at first marriage for both men and women began to fall after WWII, dropping 22.8 for men and 20.3 for women in 1950 and dropping even more to 22.5 and 20.1 years in 1956. In 1959, the United States Census Bureau estimated that 47% of all brides marrying for their first time were teenagers aged 19 and under. In 1955, 51.2% of women were married by their 20th birthday and 88% by their 25th birthday; 40.3% of men and 28.5% of women aged 20–24 in 1955 had never married, down from 77.8% for men and 57.4% for women in 1940.

    As of 2002, 4.3% of men and 18.1% of women aged 20 are married, increasing to 37% of men and 52% of women by age 25, and then 61% of men and 76% of women by age 30.

    Population growth projections

    The U.S. population in 1900 was 76 million. In 1950, it rose to 152 million; by 2000 it had reached 282 million. By 2050, it is expected to reach 420 million.

    Easterlin models

    Richard Easterlin
    Richard Easterlin
    Richard A. Easterlin is University Professor and Professor of Economics at the University of Southern California. He is a member of the National Academy of Sciences and the American Academy of Arts and Sciences...

    , an economist who has researched economic growth in the United States, explains the growth pattern of American population in the 20th century through fertility rate fluctuations and the decreasing mortality rate. Easterlin has attempted to explain the cause of the Baby Boom and Baby Bust through the “relative income” theory. The “relative income” theory suggests that couples choose to have children based on a couple’s ratio of potential earning power and the desire to obtain material objects. This ratio depends on the economic stability of the country in which they live and how people are raised to value material objects. The “relative income” theory explains the Baby Boom by suggesting that the late 1940s and 1950s brought low desires to have material objects, as a result of the Great Depression and WWII, as well as huge job opportunities, because of it being a post war period. These two factors gave rise to a high relative income, which encouraged high fertility. Following this period, the next generation had a greater desire for material objects; however, an economic slowdown in the United States made jobs harder to acquire. This resulted in lower fertility rates, causing the Baby Bust.

    State trends

    Between 1880 and 1900, the urban population of the United States rose from 28% to 40% (1), and reached 50% by 1920, in part due to 9,000,000 Europe
    Europe
    Europe is, by convention, one of the world's seven continents. Comprising the westernmost peninsula of Eurasia, Europe is generally 'divided' from Asia to its east by the watershed divides of the Ural and Caucasus Mountains, the Ural River, the Caspian and Black Seas, and the waterways connecting...

    an immigrants
    Immigration
    Immigration is the act of foreigners passing or coming into a country for the purpose of permanent residence...

    . After 1890 the US rural population began to plummet, as farmers were displaced by mechanization and forced to migrate to urban factory jobs. After World War II, the US experienced a shift away from the cities, mostly due to the gaining popularity of the automobile and heavy government funding of suburban housing and highways. Many of the original manufacturing cities lost as much as half their populations between 1950 and 1980. There was a shift in the population from the dense manufacturing centers of the Northeast (Rust Belt
    Rust Belt
    The Rust Belt is a term that gained currency in the 1980s as the informal description of an area straddling the Midwestern and Northeastern United States, in which local economies traditionally garnered an increased manufacturing sector to add jobs and corporate profits...

    ) to the outer suburbs of these cities, and to newer, less dense cities in the Southwest (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...

    ).

    Arizona

    In the 1990s, 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...

    's rural population grew by 29% while the rural retiree population grew by 43%.

    Colorado

    During the 1990s, Colorado
    Colorado
    Colorado is a U.S. state that encompasses much of the Rocky Mountains as well as the northeastern portion of the Colorado Plateau and the western edge of the Great Plains...

    's rural working-age population grew by 40% and the rural retiree population grew by 23%. The statewide population grew 31%, the statewide retiree population grew by 27%, and the statewide working-age population grew by 31%.

    Florida

    In the 1990s, the population of 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...

    's rural counties grew 25%. The state's rural retiree population grew 28%. The overall population increased by 24%, while the retiree population increased 19%. It's projected to surpass New York as the 3rd most populous state between 2009-2014.

    Illinois

    During the 1990s the rural population of Illinois
    Illinois
    Illinois is the fifth-most populous state of the United States of America, and is often noted for being a microcosm of the entire country. With Chicago in the northeast, small industrial cities and great agricultural productivity in central and northern Illinois, and natural resources like coal,...

     increased by 1%, while the population of Chicago, Illinois increased 12%.

    Kansas

    During the 1990s the rural population of Kansas increased by 2%, while the statewide increase was 9%.

    Minnesota

    During the 1990s, the population of Minnesota
    Minnesota
    Minnesota is a U.S. state located in the Midwestern United States. The twelfth largest state of the U.S., it is the twenty-first most populous, with 5.3 million residents. Minnesota was carved out of the eastern half of the Minnesota Territory and admitted to the Union as the thirty-second state...

     increased 12%. The working-age population increased 14% and the retiree population increased 9%.

    North Dakota

    In the 1990s, the rural population of North Dakota
    North Dakota
    North Dakota is a state located in the Midwestern region of the United States of America, along the Canadian border. The state is bordered by Canada to the north, Minnesota to the east, South Dakota to the south and Montana to the west. North Dakota is the 19th-largest state by area in the U.S....

     decreased 6% while the overall population remained constant.

    Washington

    During the 1990s, Washington's rural population grew by 20%. Meanwhile, the rural working-age population grew 22% and the rural retiree population grew 16%. Overall there was 21% growth, with 23% for statewide working-age populations and 15% for retirees.

    See also

    • Great Migration (African American)
      Great Migration (African American)
      The Great Migration was the movement of 6 million blacks out of the Southern United States to the Northeast, Midwest, and West from 1910 to 1970. Some historians differentiate between a Great Migration , numbering about 1.6 million migrants, and a Second Great Migration , in which 5 million or more...

    • Mean center of U.S. population
      Mean center of U.S. population
      The mean center of U.S. population is determined by the United States Census Bureau from the results of each census. The Bureau defines it to be:...

    • White flight in the United States


    General:
    • Rural exodus
      Rural exodus
      Rural flight is a term used to describe the migratory patterns of peoples from rural areas into urban areas.In modern times, it often occurs in a region following the industrialization of agriculture when fewer people are needed to bring the same amount of agricultural output to market and related...


    Primary sources

    • Kennedy, Joseph C. G.
      Joseph C. G. Kennedy
      Joseph Camp Griffith Kennedy of Pennsylvania, was a 19th century Whig politician, lawyer and journalist who supervised the United States Census for 1850 and 1860...

      Population of the United States in 1860 (1864) official returns of 8th census complete text online
    The source of this article is wikipedia, the free encyclopedia.  The text of this article is licensed under the GFDL.
     
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