Roughly 317,000 immigrants from 10 countries have this status after fleeing dangerous conditions at home. Learn about where these protections stand.
In this Q&A and video, learn about the methods and data sources the Center used to estimate the number of unauthorized immigrants in Europe.
The size of Europe’s unauthorized immigrant population in 2017 was less than half the number in the United States.
A decline in U.S. refugee admissions comes at a time when the number of refugees worldwide has reached the highest levels since World War II.
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.
Canada resettled 28,000 refugees in 2018, similar to its 2017 total. Meanwhile, the U.S. resettled 23,000, down from the previous year.
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.
There were 10.5 million unauthorized immigrants in the U.S. in 2017. The number of Mexican unauthorized immigrants declined since 2007.
Recently arrived immigrants have markedly different education, income and other characteristics from those who have been in the U.S. for longer.