Unauthorized Immigration

reportAug 21, 2025

The number of unauthorized immigrants in the U.S. reached an all-time high after two consecutive years of record growth.

short readDec 15, 2025

U.S. Customs and Border Protection agents stand guard near an Immigration and Customs Enforcement (ICE) facility in Broadview, Illinois, on Oct. 3, 2025. (Octavio Jones/AFP via Getty Images)

reportAug 27, 2025

short readAug 22, 2025

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reportJan 29, 2013

A Nation of Immigrants

Overview The nation’s total immigrant population reached a record 40.4 million in 2011, according to an analysis of Census Bureau data by the Pew Hispanic Center, a project of the Pew Research Center. Over the last decade, the number of immigrants in the U.S. has steadily grown. Since 2007 alone, the number of immigrants living in […]
reportDec 6, 2012

Unauthorized Immigrants: 11.1 Million in 2011

There were 11.1 million unauthorized immigrants living in the U.S. in March 2011, unchanged from the previous two years and a continuation of the sharp decline in this population since its peak in 2007, according to estimates by the Pew Hispanic Center, a project of the Pew Research Center. The estimate for 2011 is not […]
reportAug 14, 2012

Up to 1.7 Million Unauthorized Immigrant Youth May Benefit from New Deportation Rules

Up to 1.7 million unauthorized immigrants ages 30 and under who arrived in the U.S. as children are eligible for a new Obama administration program that would shield them from deportation and enable them to apply for temporary but renewable work permits, according to updated estimates from the Pew Hispanic Center.
reportJun 15, 2012

Up to 1.4 Million Unauthorized Immigrants Could Benefit from New Deportation Policy

Up to 1.4 million children and young adults who are in the United States illegally could potentially benefit from today’s announcement by the Obama Administration about changes in deportation policies.
short readsMay 14, 2012

Most immigrants Sent Back to Mexico Apprehended at Work or Home

About one-in-six migrants sent back to Mexico (17%) were apprehended at work or at home in 2010.
reportApr 23, 2012

Net Migration from Mexico Falls to Zero—and Perhaps Less

The largest wave of immigration in history from a single country to the United States has come to a standstill.
reportDec 6, 2011

Illegal Immigration: Gaps Between and Within Parties

Overview The public continues to support tough measures to crack down on illegal immigration, but also a path to citizenship for those in the country illegally. A plurality (43%) says the priority should be better border security and enforcement, as well as creating a way for illegal immigrants to become citizens if they meet certain […]
reportDec 1, 2011

Unauthorized Immigrants: Length of Residency, Patterns of Parenthood

Nearly two-thirds of the 10.2 million unauthorized adult immigrants in the United States have lived in this country for at least 10 years and nearly half are parents of minor children.
reportMar 2, 2011

If there are now fewer unauthorized immigrants in the U.S. where did they go?

Senior research staff answer questions from readers relating to all the areas covered by our seven projects, ranging from polling techniques and findings, to media, technology, religious, demographic and global attitudes trends.
reportFeb 1, 2011

Unauthorized Immigrant Population: National and State Trends, 2010

As of March 2010, 11.2 million unauthorized immigrants were living in the United States, virtually unchanged from a year earlier, according to new estimates from the Pew Hispanic Center.

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Unauthorized Immigration

U.S. Unauthorized Immigrant Population Reached a Record 14 Million in 2023

Growing shares say the Trump administration is doing ‘too much’ to deport immigrants in the U.S. illegally

Republicans’ Views of Justice Department, FBI Rebound as Democrats’ Views Shift More Negative

Q&A: How Pew Research Center estimates the number of unauthorized immigrants living in the U.S.

Unauthorized Immigration

A Nation of Immigrants

Unauthorized Immigrants: 11.1 Million in 2011

Up to 1.7 Million Unauthorized Immigrant Youth May Benefit from New Deportation Rules

Up to 1.4 Million Unauthorized Immigrants Could Benefit from New Deportation Policy

Most immigrants Sent Back to Mexico Apprehended at Work or Home

Net Migration from Mexico Falls to Zero—and Perhaps Less

Illegal Immigration: Gaps Between and Within Parties

Unauthorized Immigrants: Length of Residency, Patterns of Parenthood

If there are now fewer unauthorized immigrants in the U.S. where did they go?

Unauthorized Immigrant Population: National and State Trends, 2010

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