The U.S. is a nation of immigrants. But unauthorized immigrants have become a source of political debate, and Congress and President Obama disagree over the best course of action to address issues such as deportations, legal status, education and benefits. For years, the Pew Research Center has estimated the size of the unauthorized immigrant population and surveyed the U.S. public about immigration.
Interactive: U.S. Unauthorized Immigration Trends
Explore population trends from a new analysis of the unauthorized immigrant population in the United States based on Pew Research Center estimates.
State Unauthorized Immigrant Populations Rise and Fall
Since the Great Recession ended, the population of unauthorized immigrants has risen in seven states and fallen in 14.
Unauthorized Immigrants in the U.S., 2012
See how the unauthorized immigrant population varies state-by-state, how it has changed since 2009 and which states have the highest and lowest shares of unauthorized immigrants with our interactive maps.
All Publications from this Topic
Mexican Immigrants: How Many Come? How Many Leave?
The flow of immigrants from Mexico to the United States has declined sharply since mid-decade, but there is no evidence of an increase during this period in the number of Mexican-born migrants returning home from the U.S.
Recession Slows — but Does Not Reverse — Mexican Immigration
The flow of immigrants from Mexico to the U.S. has declined sharply since mid-decade, but there is no apparent increase in the number of Mexican-born migrants returning home.
A Portrait of Unauthorized Immigrants in the United States
Unauthorized immigrants living in the U.S. are more geographically dispersed than in the past and are more likely than either U.S.-born residents or legal immigrants to live in a household with a spouse and children. But the recent rapid growth in the undocumented immigrant labor force has come to a halt. The new report also includes population and labor force estimates for each state.
A Rising Share: Hispanics and Federal Crime
Sharp growth in illegal immigration and increased enforcement of immigration laws have dramatically altered the ethnic composition of offenders sentenced in federal courts.