Q&A: How Pew Research Center estimated the number of unauthorized immigrants in Europe
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.
Numbers, Facts and Trends Shaping Your World
Publications
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Video: Estimating Europe’s unauthorized immigrant population
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.
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Key takeaways on Americans’ views about privacy, surveillance and data-sharing
A majority of Americans are concerned about digital collection and use of their data by both companies and the government.
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Americans and Privacy: Concerned, Confused and Feeling Lack of Control Over Their Personal Information
Majorities of U.S. adults believe their personal data is less secure now, that data collection poses more risks than benefits, and that it is not possible to go through daily life without being tracked.
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Republicans and Democrats agree religion’s influence is waning, but differ in their reactions
Americans agree that religion’s role in public life is ebbing. But while Republicans largely lament the trend, Democrats are split in their reactions.
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Americans Have Positive Views About Religion’s Role in Society, but Want It Out of Politics
A large majority of Americans feel that religion is losing influence in public life, according to a 2019 Pew Research Center survey.
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Two-thirds of Americans support marijuana legalization
Two-thirds of Americans say marijuana use should be legal, reflecting a steady increase over the past decade.
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5 facts about unauthorized immigration in Europe
The number of unauthorized immigrants living in Europe increased between 2014 and 2016, then leveled off to an estimated 3.9 million to 4.8 million in 2017, according to new estimates from Pew Research Center.
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How European and U.S. unauthorized immigrant populations compare
The size of Europe’s unauthorized immigrant population in 2017 was less than half the number in the United States.
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Europe’s Unauthorized Immigrant Population Peaks in 2016, Then Levels Off
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.
