Illegal immigration in the United States surged to a record 14 million in 2023, according to a Pew Research Center report. That figure marked a sharp increase from 11.8 million in 2022 and broke the previous high of 12.2 million set in 2007. Numbers rose further in 2024 under Biden’s policies, then began to decline in 2025 under Trump, though the total remains above 14 million.
California, Texas, Florida, New York, New Jersey, and Illinois had the largest concentrations of illegal immigrants, with Texas rapidly catching up to California. Pew estimated that 9.7 million were part of the U.S. workforce in 2023, about 5.6% of all workers, with Nevada, Florida, New Jersey, and Texas recording the highest shares.
The economic impact of illegal immigration is staggering. According to a 2023 study by the Federation for American Immigration Reform (FAIR), the gross annual cost of illegal immigration, the total before factoring in taxes paid by illegal aliens, has risen to $182 billion.
Taxes paid by illegal immigrants cover only about 17.2 percent of these costs, leaving American taxpayers with a net burden of $150.7 billion per year. That amounts to $8,776 annually for each illegal immigrant or U.S.-born child of illegal immigrants. On a per-taxpayer basis, illegal immigration costs $1,156 a year, or $957 after accounting for taxes paid by illegal aliens.
These costs have grown sharply. The 2022 totals represented a 30 percent increase over just five years. A previous FAIR study in 2017 estimated the net annual cost at $116 billion, underscoring how quickly the burden has escalated.
The local impact of illegal immigration is especially visible in law enforcement statistics. In Los Angeles County, 95 percent of all outstanding warrants for homicide are for illegal aliens, and as many as two-thirds of all fugitive warrants in the county involve illegal aliens.