A new Pew Research Center analysis estimates that at least 3.9 million unauthorized immigrants – and possibly as many as 4.8 million – lived in Europe in 2017. Learn how we conducted the first comprehensive estimate of Europe's unauthorized immigrant population in over a decade.
Most live in Germany, the UK, Italy and France, and about half had arrived in Europe in recent years. Overall, these migrants account for less than 1% of Europe’s total population.
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.
Canada resettled 28,000 refugees in 2018, similar to its 2017 total. Meanwhile, the U.S. resettled 23,000, down from the previous year.
Explore detailed tables on the number and share of immigrants and emigrants by country.
Nearly 14% of the U.S. population is foreign-born. That's the highest share of foreign-born people in the country since 1910, but it's far from the highest in the world.
Growth in the number of emigrants from Latin America and the Caribbean has slowed – due in large part to a slowdown of people leaving Mexico.
As the number of international migrants reaches new highs, people around the world show little appetite for more migration – both into and out of their countries.
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.