Illegal Immigration & Interior Enforcement

lllegal immigration is a phenomenon confronted by many major immigrant-receiving countries, one that vexes policymakers and publics alike. While much of the focus may be on border enforcement, there are an array of interior enforcement policies aimed at identifying unauthorized immigrants for removal, including worksite enforcement, employment verification, jail-house screening, and state and local law enforcement activity. The research below delves into many facets of illegal immigration and enforcement occcuring away from national borders.

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Articles April 11, 2024 South American Immigrants in the United States By Julian Montalvo and Jeanne Batalova	Commentaries March 2024 As Europe and the United States Face Similar Migration Challenges, Spain Can Act as a Bridge By Anna Terrón Cusí and Andrew Selee
Articles March 27, 2024 The Limits of the Go-It-Alone Approach: U.S. Migration Management Increasingly Requires Other Countries’ Cooperation By Muzaffar Chishti and Colleen Putzel-Kavanaugh	Articles March 13, 2024 Frequently Requested Statistics on Immigrants and Immigration in the United States By Jeanne Batalova
Reports March 2024 Diverging Paths: The Impacts of COVID-19 on Migration in the Middle East and North Africa By Samuel Davidoff-Gore	Reports March 2024 Converging Crises: The Impacts of COVID-19 on Migration in South America By Luisa Feline Freier, Andrea Kvietok and Leon Lucar Oba
Reports March 2024 Coordination Breakdown: The Impacts of COVID-19 on Migration in Europe By Frey Lindsay	Articles March 6, 2024 Iran Faces Dwindling Water and Escalating Climate Pressures, Aggravating Displacement Threats By Javid Rostami and Arash Asad Paski

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Reports March 2024 Diverging Paths: The Impacts of COVID-19 on Migration in the Middle East and North Africa By Samuel Davidoff-Gore	Reports March 2024 Converging Crises: The Impacts of COVID-19 on Migration in South America By Luisa Feline Freier, Andrea Kvietok and Leon Lucar Oba
Reports March 2024 Coordination Breakdown: The Impacts of COVID-19 on Migration in Europe By Frey Lindsay	Reports February 2024 Outmatched: The U.S. Asylum System Faces Record Demands By Kathleen Bush-Joseph
Reports January 2024 Migration at the U.S.-Mexico Border: A Challenge Decades in the Making By Alan D. Bersin, Nate Bruggeman and Ben Rohrbaugh	Reports January 2024 Shifting Realities at the U.S.-Mexico Border: Immigration Enforcement and Control in a Fast-Evolving Landscape By Ariel G. Ruiz Soto, Colleen Putzel-Kavanaugh and Doris Meissner
Policy Briefs December 2023 What Role Could Digital Technologies Play in the New EU Pact on Migration and Asylum? By Lucía Salgado and Hanne Beirens	Reports November 2023 Immigration and Integration in the Ever More Diverse Houston Area By Valerie Lacarte, Michael Fix and Jeanne Batalova

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Spotlight

April 11, 2024

South American Immigrants in the United States

The South American immigrant population in the United States has grown at a faster rate than that of the overall foreign-born population, amid crises in Venezuela, Colombia, and elsewhere. Yet South Americans still account for only about one in ten U.S. immigrants. While they mirror the overall U.S. immigrant population in several demographic characteristics, there are some notable differences, as this article details.

Policy Beat

March 27, 2024

The Limits of the Go-It-Alone Approach: U.S. Migration Management Increasingly Requires Other Countries’ Cooperation

The U.S. immigration enforcement system increasingly depends on other countries to help halt irregular movements through the Americas and accept the return of unauthorized migrants. Foreign governments play a crucial and yet underappreciated role in migration management, and can either aid or frustrate U.S. border-control aims, as this article explores.

A naturalization ceremony at the White House.

Spotlight

March 13, 2024

Frequently Requested Statistics on Immigrants and Immigration in the United States

Immigration touches on many facets of life in the United States. Get the facts with this useful resource, which compiles in one place answers to some of the most often-asked questions about immigration and immigrants in the United States now and historically. This article contains essential data on the immigrant population, immigration levels, trends in immigration enforcement, and much more.

Afghan refugees in Iran's Semnan refugee settlement.

Feature

March 6, 2024

Iran Faces Dwindling Water and Escalating Climate Pressures, Aggravating Displacement Threats

Floods, heatwaves, and other extreme weather events have displaced hundreds of thousands of people in Iran, with repercussions for residents including the 3.4 million refugees and other forced migrants, who are restricted to climate-affected areas. Environmental challenges may also be pushing some people to move internationally. This article offers a rare look at the climate and migration dynamics in Iran.

A member of the Texas National Guard faces migrants in Eagle Pass, Texas.

Policy Beat

February 28, 2024

Standoff at Eagle Pass: A High-Stakes U.S. Border Enforcement Showdown Comes to a Small Texas Park

Rising tensions between Texas and the federal government have sparked fears of a constitutional crisis after the state deployed its National Guard to prevent the U.S. Border Patrol from conducting operations in a city park in Eagle Pass, with Texas Governor Greg Abbott saying the “invasion” of migrants triggered the need for action. This article provides an overview of the standoff and the larger context of current and past state-federal tensions over immigration enforcement.

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Explainers

April 2019

Explainer: Illegal Immigration in the United States

How has the size of the unauthorized population in the United States changed over time? How is illegal immigration changing, and where do unauthorized immigrants come from? This explainer answers basic questions about illegal immigration, the changing patterns from Mexico, and more.

Expert Q&A, Audio

October 19, 2023

Documenting the Migration Journey: African Kinship Dynamics in Europe

African migrants turn to the strength of kinship-based support systems in pursuit of stability as they settle in a European landscape that is sometimes made precarious by their legal status and shifting policies. This episode discusses use of the kinship networks, including to exchange or broker identity documents between migrants along the migration journey and at destination.

Video

September 18, 2023

20th Annual Immigration Law and Policy Conference

The 20th annual Immigration Law and Policy Conference, organized by MPI, Catholic Legal Immigration Network, Inc., and Georgetown University Law Center, features fresh, thoughtful policy and legal analysis, and discussion of some of the top immigration issues by leading government officials, attorneys, researchers, advocates, and other experts.

Video, Audio

July 25, 2023

Improving Communications in the Voluntary Return and Reintegration Network

This webinar explores the goals and target audiences for public-facing information campaigns on voluntary return and reintegration, how to evaluate dissemination gaps, and the risks associated with inadvertently issuing messages that are not trusted or are misunderstood.

Video

July 20, 2023

Straining under the Backlog: Fixing a U.S. Immigration Court System in Crisis

As the U.S. immigration court system struggles with record case backlogs, decisions take years, immigration enforcement is delayed, and wait times incentivize unauthorized arrivals. This discussion examines the factors that have driven the system to the point of crisis and possible fixes.

Expert Q&A, Audio

June 27, 2023

A Mixed Welcome: Haitian Migration within the Caribbean

MPI Senior Policy Analyst Valerie Lacarte speaks with experts Bridget Wooding and Louby George about migration of Haitians to the Dominican Republic and the Bahamas.

Recent Activity

Articles

September 27, 2023

New York and Other U.S. Cities Struggle with High Costs of Migrant Arrivals

U.S. cities have spent billions of dollars to provide shelter, health care, and other resources to migrants recently arrived from the U.S.-Mexico border. The exceptional costs, which the New York mayor has described as existential, are due to a unique combination of factors, this article explains, including the large numbers of migrants arriving without local connections and long waits for work permits.

Articles

September 21, 2023

Inmigrantes cubanos en los Estados Unidos

Los cubanos constituyen el mayor grupo de inmigrantes caribeños en Estados Unidos. La población está creciendo, ya que en los últimos años se ha producido la mayor oleada de emigración de la historia moderna de Cuba. Este artículo ofrece estadísticas clave sobre los 1.3 millones de inmigrantes cubanos en Estados Unidos.

Articles

September 20, 2023

How the Treacherous Darien Gap Became a Migration Crossroads of the Americas

Passage through the Darien Gap has transformed migration across the Americas. Hundreds of thousands of people have taken the incredibly perilous journey across the remote jungle between Colombia and Panama, risking exposure to hazardous terrain, criminal groups, and other dangers. As this article outlines, governments have struggled to respond to the growing movement, expected to top 500,000 crossings in 2023.

Commentaries

September 2023

A Shrinking Number of DACA Participants Face Yet Another Adverse Court Ruling

The DACA program has received another blow to its survival, with a federal court once again ruling that the executive branch exceeded its authority in creating the program. But with litigation likely to continue for years, it is attrition that is actively reducing the program. This commentary examines the shrinking population of DACA holders, as well as those who have been locked out from participating.

Commentaries

September 2023

A Turning Point for the Unauthorized Immigrant Population in the United States

The unauthorized immigrant population in the United States stood at approximately 11.2 million people in mid-2021, with larger annual growth than at any point since 2015, according to MPI's latest estimates. Even as the Mexican unauthorized immigrant population continued its decade-long decline, there were new entrants from a growing array of other countries.

Articles

September 7, 2023

Cuban Immigrants in the United States

Cubans comprise the largest Caribbean immigrant group in the United States, and for decades have benefitted from uniquely preferential immigration programs. The population is growing, as recent years have seen the largest wave of emigration in Cuba's modern history. This article offers key statistics about the 1.3 million Cuban immigrants in the United States.

Articles

August 24, 2023

Tanzania’s Open Door to Refugees Narrows

Tanzania’s previously generous policies towards refugees have been growing more restrictive. Many refugees are confined to camps separated from the rest of the community, and authorities have been accused of pressuring thousands of migrants to return to Burundi and Mozambique. In border communities, however, relations between natives and foreign nationals are much calmer, as this article details.

Articles

August 8, 2023

Filipino Immigrants in the United States

Immigrants from the Philippines make up the fourth largest foreign-born group in the United States, numbering nearly 2 million people. Compared to other U.S. immigrants, Filipinos are more likely to have strong English skills, be naturalized U.S. citizens, and hold a college degree. This article provides statistics about these and other elements of the Filipino immigrant population.

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