Illegal immigration, or unauthorized immigration, occurs when foreign nationals, known as aliens or non-citizens, violate US immigration laws by entering the United States unlawfully, or by lawfully e
US Border Patrol agents review documents of individuals suspected of attempted illegal entry in 2019.
El Paso (top) and Ciudad Juárez (bottom) seen from earth orbit; the Rio Grande is the thin line separating the two cities through the middle of the photograph.
A 1972 FBI report on prior drug convictions of an immigrant issued a visa
Immigration has been a major source of population growth and cultural change in the United States throughout much of its history. As of January 2025, the United States has the largest immigrant popula
Illegal immigration to the United States
…Immigration reduction in the United States Immigration to the United States Inequality within immigrant families in the United States…
Welcome notice to new immigrants
Naturalization ceremony at Oakton High School in Fairfax County, Virginia, December 2015
Immigrants to the United States take the Oath of Allegiance at a naturalization ceremony at the Grand Canyon National Park in Arizona, September 2010.
An 1887 illustration of immigrants on an ocean steamer passing the Statue of Liberty in New York Harbor