ReportsDecember 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.

ReportsFebruary 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.

ReportsSeptember 1, 2010

U.S. Unauthorized Immigration Flows Are Down Sharply Since Mid-Decade

The annual inflow of unauthorized immigrants to the U.S. was nearly two-thirds smaller in the March 2007 to March 2009 period than it had been from March 2000 to March 2005.

ReportsOctober 2, 2008

Trends in Unauthorized Immigration: Undocumented Inflow Now Trails Legal Inflow

There were 11.9 million unauthorized immigrants living in the United States in March 2008. The size of the unauthorized population appears to have declined since 2007.

Fact SheetsMay 30, 2007

Indicators of Recent Migration Flows from Mexico

Fact Sheet

Fact SheetsMay 22, 2006

Modes of Entry for the Unauthorized Migrant Population

Fact Sheet

Fact SheetsApril 5, 2006

Recently Arrived Migrants and the Congressional Debate on Immigration

Fact Sheet

ReportsJune 14, 2005

Unauthorized Migrants: Numbers and Characteristics

Most of the unauthorized population lives in families, a quarter has at least some college education and illegal workers can be found in many sectors of the US economy.

ReportsMarch 21, 2005

Estimates of the Size and Characteristics of the Undocumented Population

The undocumented population of the US now numbers nearly 11 million people, including more than 6 million Mexicans according to new estimates based on the most recent official data available.