Learn about the estimated 11 million unauthorized immigrants living in the United States. Where do they live? When did they arrive in the United States, and from which origin countries? What are their levels of education, top industries of employment, incomes, parental and marital status, health care coverage, and more? Using a unique MPI methodology to assign legal status in the U.S. Census Bureau’s American Community Survey data, this data tool provides detailed sociodemographic profiles for the United States, 41 states (plus the District of Columbia), and the 130 counties with the largest unauthorized populations as of 2019. And for topline estimates of unauthorized immigrant populations for 273 counties, click on the spreadsheet at right.