Unofficial estimates in early 2026 vary widely, with some analysts and commentators suggesting the unauthorized immigrant population may exceed 15 million due to record migration in recent years. However, these figures have not been independently verified, and the most recent widely accepted estimate from the Pew Research Center remains about 14 million people in 2023.
Latest Population Estimate (Updated)
- Estimated unauthorized immigrant population: About 14 million (latest verified estimate, as of 2023)
- Share of the U.S. population: About 4.1%
- Unauthorized immigrant workforce: About 9.7 million workers (roughly 5.6% of the U.S. labor force)
- Who is included: People who entered the U.S. without authorization, those who overstayed temporary visas, and certain individuals with temporary protections (such as pending asylum or parole) who do not have permanent legal status.
The statement “Current data shows that the unauthorized immigrant population has not dramatically increased in recent years” is no longer accurate. The latest research indicates the population rose from about 10.5 million in 2021 to 14 million in 2023, reached a likely peak in 2024, and then likely declined somewhat during the first half of 2025, though it remained above the 2023 level.
Why the Population Changes Over Time
Although border crossings receive significant media attention, they do not automatically translate into permanent growth in the unauthorized immigrant population. The total is influenced by several factors that can increase or decrease the overall number:
- New unauthorized arrivals and visa overstays
- Deportations and immigration enforcement actions
- Voluntary departures from the United States
- People obtaining lawful permanent residence, asylum, or other legal status
- Mortality and broader economic or migration trends
The unauthorized immigrant population rose sharply between 2021 and 2023, reaching an estimated 14 million, driven largely by increased migration. More recent evidence suggests growth slowed and may have declined somewhat during 2025, but no official 2026 population estimate has yet been released. Therefore, the total continues to fluctuate rather than remain fixed.
Where Most Unauthorized Immigrants Live
Unauthorized immigrants are found throughout the United States, but they are heavily concentrated in states with large economies, established immigrant communities, and strong demand for workers. These states have long attracted newcomers because they offer a wide range of employment opportunities, family networks, educational resources, and access to essential services.
The states with the largest estimated unauthorized immigrant populations include:
- California
- Texas
- Florida
- New York
- New Jersey
- Illinois
California and Texas together account for a significant share of the nation’s unauthorized immigrant population due to their large labor markets, agricultural industries, construction sectors, and proximity to major international migration routes. Florida, New York, New Jersey, and Illinois also have substantial populations, supported by diverse economies and long-established immigrant communities.
Most unauthorized immigrants live in major metropolitan areas such as Los Angeles, Houston, Dallas, Miami, New York City, Chicago, and other large urban centers. These cities provide employment in industries including agriculture, construction, hospitality, restaurants, food processing, manufacturing, transportation, healthcare support, landscaping, home health care, and other service occupations. Many employers in these sectors rely on a steady workforce to meet ongoing labor demands.
In recent years, the geographic distribution of the unauthorized immigrant population has become more diverse. Growth has expanded beyond traditional gateway states into parts of the Southeast and Midwest, where expanding industries and labor shortages have created new employment opportunities. States such as Georgia, North Carolina, Tennessee, and other rapidly growing regions have experienced increases in immigrant populations as businesses seek workers across manufacturing, logistics, agriculture, and construction.
Although unauthorized immigrants reside in all 50 states, the majority continue to live in large metropolitan regions where economic opportunities, family connections, and established immigrant communities make long-term settlement more likely. This broader geographic spread reflects changing migration patterns and evolving labor market needs across the United States.
Countries and Regions of Origin
The unauthorized immigrant population in the United States has become more diverse over the past decade, although Mexico remains the single largest country of origin.
The largest groups come from:
- Mexico, which continues to account for the biggest share of the unauthorized population.
- Central America, particularly Guatemala, Honduras, and El Salvador.
- South America, including growing numbers from countries such as Venezuela, Colombia, Ecuador, and Brazil.
- Asia, with many unauthorized immigrants arriving legally on temporary visas and later overstaying.
- The Caribbean and other regions, which also contribute to the overall population.
Recent migration patterns show greater geographic diversity than in previous decades, with a declining share from Mexico and increasing arrivals from Central America, South America, Asia, and other parts of the world.
Border Activity vs. Actual Population
Border encounters and the number of unauthorized immigrants living in the United States measure two different things and should not be treated as interchangeable.
- Border encounters reached record levels during 2022–2024.
- A single person may be counted more than once if they cross the border multiple times.
- Many migrants are removed, returned, or leave the country voluntarily.
- Others are admitted under temporary legal programs, granted humanitarian protections, or have asylum claims pending, meaning they are not necessarily part of the unauthorized immigrant population.
- Some people who enter without authorization remain in the United States long term, while others do not.
As a result, changes in border encounter numbers do not directly translate into changes in the long-term unauthorized immigrant population, which is influenced by immigration, departures, legal status adjustments, enforcement actions, and other demographic factors.
How Long People Have Been in the U.S.
The unauthorized immigrant population includes both long-term residents and more recent arrivals, reflecting changing migration patterns over the past several years.
- Millions of unauthorized immigrants have lived in the United States for 10 years or longer.
- A significant share of the population arrived within the past five years, contributing to recent growth.
- Millions live in mixed-status families, where one or more family members are U.S. citizens or lawful permanent residents, including many U.S.-born children.
- Length of residence varies widely, with some individuals having spent decades in the country while others arrived only recently.
These trends show that the unauthorized immigrant population is made up of both established long-term residents and newer migrants, making immigration policy a complex issue with humanitarian, economic, and legal dimensions.
Role in the U.S. Economy
Unauthorized immigrants play an important role in the U.S. economy by working in industries that rely heavily on labor and helping meet workforce demand in many communities.
They are commonly employed in:
- Agriculture
- Construction
- Hospitality and food services
- Manufacturing
- Home health care and personal care
- Landscaping, cleaning, and other service occupations
Many unauthorized immigrants pay federal, state, and local taxes, including income, payroll, sales, and property taxes (directly or through rent). They also help address labor shortages in essential industries, although they are generally ineligible for most federal public benefits. Economists note that their overall economic impact is complex, involving contributions to economic growth, consumer spending, and the labor force, alongside ongoing debates about immigration policy and labor market effects.
How These Numbers Are Calculated
There is no official real-time count of unauthorized immigrants in the United States. Instead, researchers produce estimates by combining multiple sources of data and statistical analysis.
Key sources include:
- U.S. Census Bureau household surveys, including the American Community Survey (ACS) and Current Population Survey (CPS)
- Department of Homeland Security (DHS) immigration and visa records
- Border encounter, admissions, and visa overstay data
- Advanced demographic and statistical models that estimate the number of people without lawful permanent status after accounting for births, deaths, emigration, and changes in legal status
Because different organizations use slightly different methodologies and assumptions, their estimates may vary by several hundred thousand people. However, leading research organizations generally reach similar conclusions about long-term trends and the overall size of the unauthorized immigrant population.
Immigration Policy Focus in 2026
Immigration remains one of the most closely watched policy issues in the United States in 2026. The size of the unauthorized immigrant population continues to influence discussions among lawmakers, federal agencies, state governments, employers, and advocacy groups. Policymakers are balancing concerns about border security, humanitarian protections, labor shortages, and the long-term future of millions of undocumented immigrants already living in the country.
The main areas of focus include:
- Strengthening border security through additional personnel, surveillance technology, and physical infrastructure.
- Increasing immigration enforcement by expanding detention capacity and accelerating the removal of individuals with final deportation orders.
- Reforming the asylum system to reduce application backlogs, shorten case processing times, and discourage fraudulent claims while protecting eligible refugees.
- Modernizing the immigration court system by hiring additional judges and improving case management to address millions of pending immigration cases.
- Revising eligibility for work permits, humanitarian parole programs, Temporary Protected Status (TPS), and other temporary immigration pathways.
- Expanding cooperation between federal, state, and local authorities on immigration enforcement while continuing debates over sanctuary city policies.
- Addressing workforce shortages in industries such as agriculture, construction, healthcare, hospitality, and manufacturing, where employers continue to seek additional legal workers.
- Continuing discussions over whether long-term undocumented immigrants, including individuals brought to the United States as children, should have a pathway to lawful permanent residence or citizenship.
Although immigration reform continues to be debated in Congress, lawmakers have not approved a comprehensive overhaul of the U.S. immigration system. Instead, much of the policy change during 2026 has come through legislation addressing border security, executive actions, court decisions, and regulatory updates that emphasize enforcement, asylum procedures, and immigration administration rather than establishing a broad pathway to citizenship for the entire unauthorized immigrant population.
As immigration patterns continue to evolve, the issue is expected to remain a central topic in U.S. politics, with future policy decisions likely to shape border management, labor markets, humanitarian programs, and the overall size of the unauthorized immigrant population in the years ahead.
Key Takeaways
- The U.S. has an estimated 10.5–11 million unauthorized immigrants
- The number has remained relatively stable over time
- Border crossings do not equal permanent population increases
- Many individuals are long-term residents contributing to the economy
Understanding how many illegal immigrants are in the US provides important context, but the issue continues to evolve as policies and migration patterns change.
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