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.

InteractivesSeptember 28, 2015

Selected U.S. Immigration Legislation and Executive Actions, 1790 – 2014

Explore how immigration in the U.S. was shaped by laws and acts in this interactive timeline of U.S. immigration legislation since the 1790s.

InteractivesSeptember 28, 2015

From Ireland to Germany to Italy to Mexico: How America’s Source of Immigrants Has Changed in the States, 1850 – 2013

Explore the top countries of origin for immigrants in each state from 1850 to 2013.

Multi-section ReportsSeptember 28, 2015

Modern Immigration Wave Brings 59 Million to U.S., Driving Population Growth and Change Through 2065

Views of Immigration’s Impact on U.S. Society Mixed

Demographic ProfilesSeptember 15, 2015

The Impact of Slowing Immigration: Foreign-Born Share Falls Among 14 Largest U.S. Hispanic Origin Groups

The U.S. Hispanic population has long been characterized by its immigrant roots. But as immigration from Latin America slows, the immigrant share among each of the nation’s largest Hispanic origin groups is in decline.

Multi-section ReportsMay 12, 2015

English Proficiency on the Rise Among Latinos

U.S. Born Driving Language Changes

Multi-section ReportsMarch 26, 2015

Share of Unauthorized Immigrant Workers in Production, Construction Jobs Falls Since 2007

In States, Hospitality, Manufacturing and Construction Are Top Industries

Multi-section ReportsMarch 26, 2015

Testimony of Jeffrey S. Passel – Unauthorized Immigrant Population: National and State Trends, Industries and Occupations

Written testimony submitted to U.S. Senate Committee on Homeland Security and Governmental Affairs for a hearing on: Securing the Border: Defining the Current Population Living in the Shadows and Addressing Future Flows

InteractivesDecember 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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InteractivesNovember 18, 2014

Unauthorized Immigrants in the U.S., 2012

Multi-section ReportsNovember 18, 2014

Unauthorized Immigrant Totals Rise in 7 States, Fall in 14

Decline in Those From Mexico Fuels Most State Decreases