United States
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Homeland Security ImmigrationIncludes links to Yearbook of Immigration Statistics, enforcement actions, profiles of legal permanent residents and more
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U S Census: Foreign Born PopulationVarious reports detailing characteristics and countries of origin for foreign born population in the United States
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Migration Policy Institute Maps of the Foreign Born in the United StatesMaps the settlement patterns and concentration of various immigrant populations in the United States in 2010 and 2000.
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Children of Immigrants Data Tool (Urban Institute)Create simple charts and graphs with this pre-programmed tool.
Immigration to the United States by Decade
Source: Yearbook of Immigration Statistics (PDF)
International
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Migration Policy InstituteThe Migration Policy Institute is an independent, nonpartisan, nonprofit think tank in Washington, DC dedicated to analysis of the movement of people worldwide. Reports include detailed statistics on migration patterns and trends and characteristics of migrants, including refugees and asylees.
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Nationmaster Immigration Statistics by CountryStatistics drawn from various sources include refugees and asylum seekers.