U.S. Immigration Policy Program
The U.S. Immigration Policy Program provides thought leadership on ways to improve the U.S. immigration system so that it works most effectively in the national interest. To that end, its work focuses on immigration pathways to the United States and immigration enforcement policies and their impacts. It examines the complex demographic, economic, social, political, foreign policy, and other forces that shape U.S. immigration.
Program staff produce data and analyses of immigration trends and the characteristics of U.S. immigrant populations, including unauthorized immigrants. And they conduct original research on the impacts of policy change and the experiences of immigrant populations in diverse parts of the country. This work is frequently informed by private convenings of policymakers and key stakeholders. For more, click here.
The Latest Research
U.S. Deportations and “Self-Deportations” in the First 18 Months of the Second Trump Term
Filling a gap amid a slowdown in official data reporting from the federal government, this analysis offers a window into deportation and "self…
Featured
Physicians in an Era of Changing Immigration Policy: The Case of Nephrology
The care of kidney disease in the United States relies heavily on international medical graduates (IMGs). Recent policy changes could deepen…
Temporary Visa Holders in the United States
The number of U.S. temporary visas plummeted during the COVID-19 pandemic, rebounded, and then fell again in fiscal year (FY) 2025. Preliminary data…
Following Years of High Border Arrivals, the U.S. Unauthorized Immigrant Population Hits New Peak
MPI estimates the U.S. unauthorized immigrant population reached a new peak of 15.8 million as of mid-2024, after holding steady at around 11 million…
More Featured Work
From Counterterrorism to Immigration Enforcement: 25 Years On, Post-9/11 U.S. Changes Have Been Repointed
Post-9/11 national security tools have been repurposed for immigration, expanding the U.S. government’s capacity for surveillance, data sharing, and…
Attacked as "De Facto Amnesty," U.S. Temporary Protected Status Is Abruptly Eroded
The Trump administration moved to terminate most of the 17 Temporary Protected Status (TPS) designations in place when its second term began,…
Though Rare, Birth Tourism to the United States Sparks Outsized Concern
While rare, birth tourism has become a central but contested justification in the Trump administration's push to end the guarantee of birthright…
Key Statistics
Learn more about immigrants and immigration to the United States
14.8%
The immigrant share of the total U.S. population
Learn how this share has evolved (opens in a new tab)50.2 million
The number of immigrants in the United States
Explore Data Profiles by State (opens in a new tab)18.4%
The share of workers in the U.S. civilian labor force who are immigrants
Get the data at U.S. and state levels (opens in a new tab)Showing 41–50 of 824 results
Tapping Ancient Wartime and Security Laws, Trump Administration Dramatically Expands Immigration Powers
The Trump administration is deploying centuries-old wartime laws, some of which have never been used for routine immigration enforcement, to expand detentions and deportations.
The Essential Role of Immigrants in the U.S. Food Supply Chain
About 2.1 million immigrants work in jobs growing, harvesting, processing, and selling food in the United States, serving an essential role in feeding America.
Trump Administration Bends U.S. Government in Extraordinary Ways towards Aim of Mass Deportations
The Trump administration has bent virtually every arm of the U.S. government toward mass deportations, but early results reveal a gap between ambition and available resources.
ICE Arrests and Deportations from the U.S. Interior
Learn how U.S. Immigration and Customs Enforcement works within the U.S. interior, identifying people for arrest, detention, and removal.
Arrestos y deportaciones de ICE desde el interior de Estados Unidos
Esta guía explicativa tiene respuestas a preguntas comunes sobre la función del Servicio de Inmigración y Control de Aduanas (ICE, por sus siglas en inglés) de EE. UU., en la identificación de personas para arresto, detención, y deportación.
The Unauthorized Immigrant Population Expands amid Record U.S.-Mexico Border Arrivals
The U.S. unauthorized immigrant population stood at 13.7 million as of mid-2023. The result of strong U.S. economic recovery from the pandemic and displacement in Latin America, the increase in the size of the unauthorized population is accompanied by a diversifying makeup in nationalities. As Mexico's share of the overall unauthorized population has declined, the shares from Central and South America, in particular, have increased.
Amid Tariff Threats, Migration Management Is Key to the Evolving Trump-Sheinbaum Relationship
The Trump administration is threatening tariffs on Mexico to achieve migration management aims, as it did in 2019. The landscape is far different in 2025, though. Mexican cooperation is at far higher levels than in 2019 and Mexico is essential to many of the Trump border goals—giving it greater leverage than before. Negotiations that recognize both countries' goals, capacities, and legal frameworks are essential to effective outcomes, this short read argues.
Entre amenazas arancelarias, la gestión de la migración es clave para la evolución de la relación Trump-Sheinbaum
La administración Trump amenaza con imponer aranceles a México para lograr sus objetivos de gestión migratoria, como lo hizo en 2019. Sin embargo, el panorama es muy diferente en 2025. La cooperación mexicana para el control migratorio alcanza niveles mucho más altos que en 2019, lo que le otorga mayor influencia que antes. Este Foco analítico sostiene que las negociaciones que reconozcan los objetivos y las capacidades de ambos países son esenciales para lograr resultados efectivos.
With “Shock and Awe,” the Second Trump Term Opens with a Bid to Strongly Reshape Immigration
The Trump administration's second term opened with an unprecedented sweep of executive actions focused on mass deportations and border shutdowns, although hurdles await.
Jimmy Carter and Immigration: A Wide-Ranging Legacy That Remains Relevant Today
The passing of the nation’s 39th president has sparked numerous assessments of the Carter presidency, yet few have focused on the wide-ranging legacy that Jimmy Carter left in the immigration realm. The Carter presidency illustrates the long history of authorities that remain in use today, including parole and creation of lawful pathways to admit people in orderly ways, and the persistent roots of issues such as spontaneous migration from the Caribbean.
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Michelle Mittelstadt
202 266 1910 [email protected]