Immigration is central to the growth and identity of the Hispanic population. Almost all of the project's research, regardless of topic, includes separate tabulations of data for U.S.-born and foreign-born Hispanics. Research on immigration focuses on the unauthorized population, overall trends in immigration and public attitudes towards immigrants and immigration policy.

Also see our statistical portraits, state and county databases, demographic profiles and Census 2010 tables for data on the characteristics of the Latino and foreign-born populations in the United States.

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Sep. 23, 2013

U.S. Unauthorized Immigration Population Trends, 1990-2012

Explore population trends from a new analysis of the unauthorized immigrant population in the United States based on Pew Research Center estimates.

Jul. 22, 2013

Are Unauthorized Immigrants Overwhelmingly Democrats?

Jun. 27, 2013

How Many Unauthorized Immigrants Would Become U.S. Citizens?

Jun. 23, 2013

‘Borders First’ a Dividing Line in Immigration Debate

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Jun. 19, 2013

2011 Hispanic Origin Profiles

95% of the U.S. Hispanic population is made up of the 14 largest Hispanic origin groups, and six of these groups have populations greater than 1 million. Explore characteristics of these groups with this interactive.

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Jun. 19, 2013

Infographic: Hispanic Origin and Nativity

May. 1, 2013

A Demographic Portrait of Mexican-Origin Hispanics in the United States

Apr. 17, 2013

Unauthorized Immigrants: How Pew Research Counts Them and What We Know About Them

A Portrait of U.S. Immigrants
Feb. 15, 2013

U.S. Immigrant Population Trends

Key findings from a new analysis of the nation’s foreign-born population, based on U.S. Census Bureau’s 2011 American Community Survey.

Feb. 7, 2013

A Portrait of Second-Generation Americans