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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Dec. 11, 2014

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

Explore U.S. unauthorized immigrant population trends for states of residence, as well as for international regions and largest countries of birth, based on Pew Research Center estimates.

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Nov. 18, 2014

Unauthorized Immigrants in the U.S., 2012

Nov. 18, 2014

Unauthorized Immigrant Totals Rise in 7 States, Fall in 14

Decline in Those From Mexico Fuels Most State Decreases

Oct. 29, 2014

Latino Support for Democrats Falls, but Democratic Advantage Remains

Democrats maintain a wide, but diminished, advantage among Hispanic registered voters, 54% of whom say a candidate’s position on immigration is not a deal-breaker in determining their vote.

Sep. 3, 2014

As Growth Stalls, Unauthorized Immigrant Population Becomes More Settled

The number of unauthorized immigrants living in the United States has stabilized since the end of the Great Recession and shows no sign of rising, according to new Pew Research Center estimates. The marked slowdown in new arrivals means that those who remain are more likely to be long-term residents, and to live with their U.S.-born children.

Aug. 11, 2014

Puerto Rican Population Declines on Island, Grows on U.S. Mainland

Puerto Ricans have left the financially troubled island for the U.S. mainland this decade in their largest numbers since the Great Migration after World War II, citing job-related reasons above all others.

Jun. 19, 2014

Latino Jobs Growth Driven by U.S. Born

Immigrants No Longer the Majority of Hispanic Workers

Apr. 29, 2014

Hispanic Nativity Shift

U.S. births drive population growth as immigration stalls

Apr. 29, 2014

Statistical Portrait of the Foreign-Born Population in the United States, 2012

Apr. 1, 2014

Catholics, other Christians support immigration reform, but say faith plays small role