Immigration 101

The U.S. immigration system is complex and can be difficult to understand. These resources provide key data points, historical information, and background on hot topics in immigration. Learn the basics about immigration.

Recent Features

Why Don’t Immigrants Apply for Citizenship?

There is no line available for undocumented immigrants and the “regular channels” do not include them.

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Fact Sheet
Temporary Protected Status: An Overview

This fact sheet provides an overview of how Temporary Protected Status designations are made, what benefits TPS confers, and how TPS beneficiaries apply for and regularly renew their status.

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How the United States Immigration System Works

U.S. immigration law is very complex. Here's basic information about how the U.S. legal immigration system is designed.

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All Immigration 101 Content

  • Special Report

The Role of Contact and Values in Public Attitudes Toward Unauthorized Immigrants

Publication Date: 
April 30, 2019
This report uncovers the degree to which contact with immigrants and personal values are associated with views about unauthorized immigrants.
  • Special Report

The Landscape of Immigration Detention in the United States

Publication Date: 
December 5, 2018
This analysis reveals that individuals detained by U.S. Immigration and Customs Enforcement were commonly held in privately operated and remotely located facilities, far away from basic community...
  • Fact Sheet

How USCIS Estimates Application and Petition Processing Times

Publication Date: 
July 18, 2018
This fact sheet provides an overview of how USCIS calculates processing times and the concerns over the accuracy of these estimates.
  • Special Report

The Immigrant Success Story

Publication Date: 
June 11, 2018
Some confusion exists regarding the economic aspects of family-based immigration. To help unpack those aspects, this report focuses on one of them—namely, the earnings of family-based immigrants.
  • Fact Sheet

The End of Immigration Enforcement Priorities Under the Trump Administration

Publication Date: 
March 7, 2018
Enforcement of U.S. immigration laws has historically been guided by policies that emphasize prioritization. However, this practice has largely been abandoned since the inauguration of President...
  • Special Report

Foreign-Trained Doctors are Critical to Serving Many U.S. Communities

Publication Date: 
January 17, 2018
U.S. immigration policies significantly limit the ability of these doctors to immigrate to and practice in the United States. As policy-makers debate what immigration reforms would best serve the...
  • Fact Sheet

The Diversity Immigrant Visa Program: An Overview

Publication Date: 
November 13, 2017
This fact sheet provides an overview of the diversity visa program, the requirements and security checks currently in place, and demographic information about recipients.
  • Fact Sheet

The RAISE Act

Publication Date: 
August 11, 2017
The Reforming American Immigration for Strong Employment Act (RAISE Act) or S. 354 would mark a sweeping overhaul of the U.S. immigration system. It would significantly reduce levels of legal...
  • Fact Sheet

Immigration Detainers: An Overview

Publication Date: 
March 21, 2017
This fact sheet explains detainers, how they are used by federal and local enforcement, and the impact they have on immigrants.
  • Fact Sheet

The Impact of Immigrant Women on America’s Labor Force

Publication Date: 
March 8, 2017
There are nearly 12 million immigrant (foreign-born) women workers in the United States today, comprising just over 7 percent of the total labor force.
  • Blog

200 Immigration-Related Bills Have Already Been Introduced in State Legislatures in 2024

January 26, 2024

Amid inaction from the federal government on immigration policy and growing calls for action from localities, some state legislatures are taking a proactive role in welcoming immigrants and...

  • Blog

Naturalization Helps Immigrants and the United States Reach Full Potential

January 19, 2024

By Karen Aho, Consultant and Anna Shepperson, Research Associate When Sri Lankan business analyst Dinesh Prabaharan became a U.S. citizen in December of 2023, he expressed his gratitude at finally...

  • Blog

State Department Extends Nonimmigrant Visa Interview Waivers Indefinitely

January 11, 2024

The State Department announced an update to its discretionary interview waiver policy for nonimmigrant visa applicants on December 21, 2023. It replaces the temporary policies in place for almost...

  • Blog

States Facing Worker Shortages Are Helping Migrants Secure Employment with New Resource Clinics

December 8, 2023

Many migrants, after being released from government custody, resettle in interior communities. These individuals and families often need immediate support in the form of housing, food, and...

  • Blog

Lawsuits Prompt Immigration Agencies to Publish Critical Documents in Their FOIA Libraries

December 1, 2023

Last September, U.S. Customs and Border Protection agreed to publish past versions of the Department of Homeland Security’s Privacy Impact Assessments on CBP One, the app that allows asylum...

  • Blog

Map the Impact: Immigrants Make Up Over 18% of the Total US Population Growth

November 13, 2023

Written by Robin Lundh, Research Manager and Anna Shepperson, Research Associate. Immigration—long central to the American experience—has dominated news coverage in recent years. Between 2016 and...

  • Blog

Department of Labor Report Highlights Severity of Child Labor in the US and Worldwide

November 2, 2023

The Department of Labor (DOL) recently issued its yearly Findings on the Worst Forms of Child Labor report, examining 131 countries’ efforts to abolish child labor in 2022 and the obstacles those...

  • Blog

Spotlight on the Changing Demographics of Hispanic Americans

September 28, 2023

By Karen Aho and Robin Lundh of the American Immigration Council Today, Hispanic Americans form the largest ethnic group in the United States. The value of Hispanic Americans to the makeup of the...

  • Blog

New Board of Immigration Appeals Decision Sets Roadblock for Cubans, Others Seeking Green Cards 

September 28, 2023

A recent Board of Immigration Appeals (BIA) decision bars certain recently arrived noncitizens from becoming lawful permanent residents. In Matter of Cabrera-Fernandez, the BIA held that the...

  • Blog

What Does the Looming Government Shutdown Mean for Our Immigration System?

September 28, 2023

After weeks of failed negotiations on spending, Congress has less than a week left to avert a potential government shutdown. Members of the House Republicans’ Freedom Caucus have refused to pass...

  • Press Release

Reality at the U.S. Mexico Border

June 8, 2010

Washington D.C. - On Monday, the Immigration Policy Center (IPC) hosted a teleconference with border and national-security experts who diss

  • Press Release

U.S. Border Enforcement Prioritizes Non-Violent Migrants Over Dangerous Criminals

May 20, 2010

Washington D.C. - The Mexican President's visit to the United States allowed both he and President Obama to address the important issues of immigration, border con

  • Press Release

The Folly of Repealing Birthright Citizenship

March 30, 2010

Washington D.C. - This Sunday, the editorial pages of the Washington Post included a

  • Blog

Unpacking Myths About Noncitizen Voting — How Heritage Foundation’s Own Data Proves It’s Not a Problem

August 1, 2024
Many politicians have called for overhauling the United States’ election systems by mandating strict voter ID for both registering to vote and actual voting. However, noncitizen voting is extremely rare.
  • Blog

Houston Celebrates Over 2,200 New Citizens in Historic Naturalization Ceremony

July 25, 2024

Naturalization is viewed by many as the end point of an immigrant’s journey—the finish line—and for good reason. The path to naturalization can take many years and requires immigrants to navigate...

  • Blog

Kamala Harris’ Opportunity to Reframe the Immigration Conversation

July 23, 2024

The American Immigration Council does not endorse or oppose candidates for elected office. We aim to provide analysis regarding the implications of the election on the U.S. immigration system. As...

  • Blog

Why Are Border Crossings at Their Lowest Level in Four Years?

July 19, 2024

Border crossings are at their lowest in four years. Is the Biden administration’s executive action working as intended—or is there another factor at play? Apprehensions at the U.S.-Mexico border...

  • Blog

Immigrants Are Key to Filling US Labor Shortages, New Data Finds

July 2, 2024

Almost one in every seven people in the United States is an immigrant, according to the American Immigration Council’s new analysis of the 2022 American Community Survey. The updated state-level...

  • Fact Sheet

How the United States Immigration System Works

Publication Date: 
June 24, 2024
U.S. immigration law is very complex, and there is much confusion as to how it works. This fact sheet provides basic information about how the U.S. legal immigration system is designed.
  • Blog

Border Patrol’s 100th Anniversary Offers Chance to Look Back at Its Disturbing Origins

June 7, 2024

The U.S. Border Patrol turned 100 years old on May 28. Its troubled origins and history form the backdrop for contemporary concerns about the agency, including impunity for abuses against migrants...

  • Blog

Are More Undocumented Immigrants Living in the US Now? Here’s What the Numbers Say

June 7, 2024

According to a new report from the U.S. Department of Homeland Security, about 11.0 million undocumented immigrants were living in the United States in 2022—a 4.6% increase from 2020. This is...

  • Blog

Biden’s New Changes to the Asylum Process: What You Need to Know

June 5, 2024

On June 4, President Biden issued a sweeping order under section 212(f) of the Immigration and Nationality Act claiming that allows him to “suspend the entry” of most migrants who cross the border...

  • Fact Sheet

An American Immigration Council Analysis of the President’s 212(f) Proclamation and Interim Final Rule Restricting Asylum

Publication Date: 
June 5, 2024
On June 4, the Biden administration issued a presidential proclamation and an Interim Final Rule restricting access to asylum for people crossing into the United States without legal status. The...

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