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Fact sheets: Country-specific data on unauthorized immigrant populations
How Pew Research Center estimated the number of unauthorized immigrants in Europe (English) Summary of findings: (French | Français) Summary of findings: (German | Deutsch) Summary of findings: (Spanish | Español) Summary of findings: (Italian | Italiano)
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About Pew Research Center Pew Research Center is a nonpartisan fact tank that informs the public about the issues, attitudes and trends shaping the world. It conducts public opinion polling, demographic research, media content analysis and other empirical social science research. Pew Research Center does not take policy positions. It is a subsidiary of The Pew Charitable Trusts.
