The unauthorized immigrant population in the United States reached 10.5 million in 2021. That was a modest increase over 2019 but nearly identical to 2017.
The number of unauthorized immigrants living in the United States has stabilized since the end of the Great Recession and shows no sign of rising, according to new Pew Research Center estimates. The marked slowdown in new arrivals means that those who remain are more likely to be long-term residents, and to live with their U.S.-born children.