Much of the downturn in the share of immigrant births to Hispanics has been driven by a decline in births among Mexican-origin women.
Jeffrey S. Passel, senior demographer, on the research techniques used to derive the unauthorized immigrant population estimate in the U.S. and the challenges involved.
While Mexico is the United States' largest source of immigrants, the number of Mexican immigrants living in the U.S. illegally has declined since 2007.
More than 40 million people living in the U.S. were born in another country, accounting for about one-fifth of the world’s migrants in 2017.
In 2017, an estimated 10.5 million unauthorized immigrants lived in the United States, down from a peak of 12.2 million in 2007. Explore trends in the unauthorized immigrant population for U.S. states, as well as for birth countries and regions.
There were 10.5 million unauthorized immigrants in the U.S. in 2017. The number of Mexican unauthorized immigrants declined since 2007.
The latest Pew Research Center data estimates there were 10.5 million unauthorized immigrants living in the U.S. in 2017, down significantly from a decade prior. In this video, our researchers go behind the scenes to explain the “how” and “why” behind determining these new numbers.
The number of Mexican unauthorized immigrants has fallen since its peak of 6.9 million in 2007 and was lower in 2017 than in any year since 2001.
Recently arrived immigrants have markedly different education, income and other characteristics from those who have been in the U.S. for longer.
Key charts and stats about immigrants in the United States from 1980 to 2017.