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America's Great Migrations

mapping Great Migrations Migration is one of the great forces of history. When people move in large numbers they sometimes rearrange not only their own lives but also places they leave and the places they settle. Americans have always been a moving people, coming from other places, moving to new places. Not only has the nation long attracted people from other nations, it also claims high rates of internal migration. This project explores a number of consequential migrations--Great Migrations--that helped reshape culture, politics, or economic structures. It has five units (see menu top), each with detailed information and interactive maps, charts, and data: (1) the Great Migration of African Americans out of the South 1900-2000; the reverse migration to the South 1970-2020; state by state Black migration histories (2) the enormously consequential migrations of Latinx Americans, both from Latin America and inside the US (1850-2017); (3) the diaspora of whites from the South to northern and western states; (4) the Dust Bowl migration to California from Oklahoma and neighboring states in the 1930s. (5) In addition, we provide migration histories for all fifty states showing decade-by-decade from 1850-2017 where residents have come from.

This site is based on published and unpublished work by James Gregory, Professor of History, University of Washington. It is part of the Civil Rights and Labor History Consortium of public history projects directed by Professor Gregory at the University of Washington.

chicago migrantsUpwards of 7 million African Americans left the South during the 20th century, settling mostly in the big cities of the North and West. In doing so they transformed more than their own lives. This Great Migration transformed cities and set the foundations for reconstructions of race, politics, and even the regional balances of the nation. This section includes interactive maps and charts tracking the exodus from the South; another set detailing the "reverse migration" to the South since 1970; a third with state-by-state Black migration histories 1850-2020.







chicago migrantsSpanish-speaking people were living in what is now the United States decades before English-speaking people crossed the Atlantic seeking colonies. Centuries later when the United States annexed Florida, Louisiana, and the northern half of Mexico, more than 100,000 Spanish-speaking residents became US citizens. The 1850 US census, taken shortly after the conquest of Mexico, counted more than 80,000 former Mexicans, 2,000 Cubans and Puerto Ricans, and another 20,000 people from Central and South America. Today the descendants of those 1850 citizens are part of a Latinx American population that has grown enormously. As of 2017, more than 58 million Americans claimed Latin American heritage. This section includes six interactive maps and charts and a short interpretative essay.


More than 20 million whites left the South during the 20th century, vastly outnumbering the 7-8 African Americans who left. They were joined by nearly 1 million Latinx, mostly Tejanos, who moved west to California and north into the Midwest. This section shows migration patterns and explores the impacts of the southern diaspora. This section includes six interactive maps and tables as well interpretative essays.






The relocation to California of close to 400,000 Oklahomans, Texans, Arkansans, and Missourians during the Great Depression was the most publicized mass migration of that decade. Many faced unexpected difficulties, especially those who headed for California's Central Valley. Their plight caught the attention of journalists, photographers, and became the subject of one of the most celebrated American novels of the century, John Steinbeck's The Grapes of Wrath. Here are three interactive maps as well as detailed accounts and primary sources.







Americans have always been a moving people, coming from other places, moving to new places. Not only has the nation long attracted people from other nations, it also claims high rates of internal migration. Here are interactive graphics and maps that allow us to track the changing population decade-by-decade since 1850. Select a state and see where people were born, both other countries and other states. We have more detail about key states, including racial breakdowns, see the separate pages for: Alabama, Arizona, California, Colorado, Florida, Illinois, New York, Texas, Virginia, Washington state,.





   California Migration History 1850-2017

California's history is keyed to migration. The most populous state in the union became so because so many people from other states and other lands have moved there. It was not until 2010 that the number of native-born Californians surpassed the number who had migrated from somewhere else. And still today most adults are from another state or another country. Migration predated the period of US control notably when Spain sent soldiers and missionaries into the area they named California. It accelerated after the United States seized the Mexican province and immediately profited from the 1848 discovery of gold in the Sierra foothills. [more]

   Florida Migration History 1850-2017

More than any other southern state, Florida has consistantly attracted newcomers. Today only about one third of the population claims a Florida birthplace; two thirds are from somewhere else, many from Cuba and Latin America but really from every state and most nations. Migration to Florida is an old story, In the late 1800s, Florida grew rapidly as whites from neighborhing states moved south looking for land to farm. [more]

   Illinois Migration History State 1880-2017

Illinois, like other midwestern states, experienced rapid population growth through migration in the 19th century and much slower growth since then. Recording a population of 851,000 in 1850, the state doubled its numbers by 1860, doubled again by 1880, and again before 1910. It has taken a century to double the 1910 total. Migration in the 19th century drew heavily on states to the east of Illinois, especially New York, Ohio, and Pennsylvania. European immigrants from Gemany and Ireland came in huge numbers in the same period. The 1880 census showed that roughly half the population were from out of state with Germany, New York, Ohio, and Ireland the leading contributors. [more]

   New York Migration History 1850-2017

New York has always been the gateway state, the state that absorbs the greatest diversity of newcomers from abroad. In 1850 when for the first time the US census recorded birthplaces, the leading birthplaces for residents not born in New York were in order: Ireland, Germany, England, Connecticut, Massachusetts, Vermont, New Jersey, and Canada, with a dozen other countries further down the list. [more]

   Texas Migration History 1850-2017

Texas has been a migration magnet throughout its history, which helps explain the record of growth that now makes it the second most populous state following California. Migration, most of it illegal, from Tennessee, Alabama, and Mississippi fueled the rebellion that wrestled the province from Mexico in 1836. In the decades that followed an enormous number of southerners moved west to expand the cotton belt, many of them enslaved. [more]

   Washington Migration History 1850-2017

Washington remains today a state where most residents came from somewhere else, another state or another country. Occupied by Americans since the 1840s, it's population grew slowly until statehood in 1889, then surged after the discovery of gold in Alaska and the Yukon in 1896. Farming, timber, and fishing attracted newcomers from the upper Midwest and from northern Europe, along with smaller numbers of Chinese and Japanese. [more]

   Arizona Migration History 1850-2017

Arizona remains today a state where most residents came from somewhere else, either another state or another country. It is also a state where substantial tracks of land remain the property of Native nations--Navaho, Yuma, Pima, Apache, Pueblo, Papago, and Zuni. The United States seized the area in the war against Mexico in 1846, but few Americans found reason to settle there until silver and cooper deposits brought miners starting in the late 1870s. An 1870 population of less than 10,000 grew to 122,000 by 1900. Whites comprised less than half of the turn-of-the-century population. One third were ethnic Mexicans, born either in the Southwest or Mexico. Native peoples accounted for more than 20 percent of persons enumerated in the 1900 census. [more]

   Colorado Migration History 1850-2017

Colorado remains today a state where most residents came from somewhere else, either another state or another country. Cheyenne, Shoshone, Arapahoe, Ute, and other native nations commanded the area until 1848 when the United States seized it in its war against Mexico. The discovery of gold near Pike's Peak in 1857 set up the first significant influx of newcomers, mostly whites from Midwestern and Northeastern states. [more]

   Virginia Migration History 1850-2017

Until World War II, Virginia shared the demographic and migration patterns common to Southeastern states. The state attracted few newcomers aside from those moving short distances across the borders of continguous states. Natural increase among African American and white Virginians drove population gains while outmigration exceeded all avenues of inmigration. World War II brought military installations and defense industries that began to reshape the economy,[more]

   Alabama Migration History 1850-2017

Alabama was a population replacement zone in the early 19th century as Choctaw, Creek, Chickisaw, and Cherokee people were driven west and their lands were sold off to White planters from Georgia, South and North Carolinia, Tennessee, and Virgina bent on expanding the cotton kingdom. Enslaved people of African descent did the work and comprised 45 percent of Alabama's population on the eve of the Civil War. Freedom turned Alabama in a different direction. For the next century, until 1960s, few people moved into the state and population grew slowly, largely dependent upon "natural increase," an odd euphemism for the work of mothers. [more]



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