There were 12.0 million immigrants from Mexico living in the United States in 2016, and fewer than half of them were in the country illegally.
Today, 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 2016.
The number of unauthorized immigrants living in the United States was lower in 2016 than at any time since 2004.
There were 10.7 million unauthorized immigrants in the U.S. in 2016, down from 12.2 million in 2007. The total is the lowest since 2004 and is tied to a decline in the number of Mexican unauthorized immigrants.
In 2016, an estimated 10.7 million unauthorized immigrants lived in the U.S., down from a peak of 12.2 million in 2007. Explore trends in the U.S. unauthorized immigrant population by state of residence in the U.S., as well as by birth countries and regions.
About 250,000 babies were born to unauthorized immigrant parents in the United States in 2016, the latest year for which information is available, according to a new Pew Research Center analysis of government data about illegal immigration. This represents a 36% decrease from a peak of about 390,000 in 2007.
Want to know more about immigration to the U.S.? Sign up now for our short email mini-course to take your understanding to the next level.
Want to learn more about immigration? Our researchers have distilled much of what we know about the topic into a five-part email mini-course.
Monthly number of migrant detections by sea (January 2009 to August 2018), by route
The paths migrants have taken across the Mediterranean Sea to Europe have changed over time. So far in 2018, the Morocco-to-Spain corridor has been the most traveled among the three major sea routes used by migrants to reach Europe.