Migration Wave Reached Beyond Big Cities to Smaller Sun Belt Communities

One of the largest migration waves in recent U.S. history did not stop in Miami, Houston or other established immigrant gateways. It reached smaller Sun Belt cities, too.

Federal data covering about 4.5 million migrants released after crossing the U.S.-Mexico border between October 2018 and July 2025 show newcomers heading to communities across Florida, Texas, Tennessee, the Carolinas and other parts of the South, including places with relatively little recent experience absorbing international migration.

An Associated Press analysis of federal destination data found migrants from more than 150 countries dispersing throughout the United States.

The destinations included Knoxville, Tennessee, illustrating how the geography of immigration has expanded beyond traditional gateways.

A different migration map

For decades, international migration into the United States was heavily associated with a relatively small group of metropolitan areas.

That map has been changing. Fast-growing Sun Belt cities have added jobs, housing and population, while immigrant communities have increasingly formed in suburban and smaller metropolitan areas.

The federal data capture another part of that shift. Florida remained a major destination for migrants released after crossing the southern border, but arrivals also listed addresses in smaller cities and communities across the Southeast.

The pattern matters because several hundred new families can have a much larger effect on a smaller city than thousands of newcomers have on a metropolitan area of several million people.

Schools may need additional language services. Rental demand can change. Churches and nonprofit organizations can become informal arrival networks. Employers gain workers from countries that previously had little presence in the community.

The migrants themselves changed, too

The recent migration wave differed from earlier periods in another important way. Women and children accounted for nearly 60% of the migrants covered by the federal release data.

That makes the impact different from an immigration flow dominated primarily by working-age men.

Families need schools, pediatric care and housing suitable for children. Their arrival can also create longer-lasting community ties as children enroll in local schools and parents enter the workforce.

The geographic origins broadened as well. Migrants came not only from Mexico and Central America but from Venezuela, Ecuador, India, China, Ghana and scores of other countries.

That diversity is beginning to appear in communities that historically had much smaller foreign-born populations.

Knoxville offers a glimpse of the change

Knoxville stands out because it is not one of America’s traditional immigrant gateways.

The East Tennessee metropolitan area has been growing for years, supported by health care, manufacturing, education, tourism and its proximity to the Great Smoky Mountains.

International migration is now another part of that population story.

The U.S. Census Bureau’s population estimates have shown international migration playing a larger role in population growth across many U.S. communities as domestic migration patterns have shifted.

For places such as Knoxville, the change can happen quickly enough that institutions built for a less internationally diverse population have to adjust.

Schools are often among the first places where that becomes visible. So are apartment complexes, workplaces, grocery stores and houses of worship.

The numbers require an important caution

The federal records do not show where every migrant ultimately settled.

They record destinations provided when migrants were released after processing at the border. Someone who listed an address in Knoxville, Orlando or Houston could later have moved elsewhere.

The dataset also does not represent all immigration. It excludes many people who entered through legal visa programs, received refugee status through other processes or arrived through different immigration channels.

Still, the 4.5 million records provide an unusually detailed picture of where one extraordinary period of migration initially carried people. And that picture is considerably more dispersed than the traditional American immigration map.

For the Sun Belt, the demographic change of the past decade has therefore involved more than Americans leaving expensive northern and western cities for Texas, Florida, Tennessee or the Carolinas.

International migration has been reshaping many of the same places. In some of America’s fastest-changing communities, those two population movements have been happening at the same time.