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

  • Research and Analysis

Minority Newcomers: Fair Comparisons of Immigrants and the Native Born

Publication Date: 
November 1, 2003
Comparisons of the mostly “minority” foreign-born and mostly “white” native-born populations that fail to account for the socioeconomic impact of ethnicity incorrectly suggest that place of birth,...
  • Research and Analysis

Migrating to Recovery: The Role of Immigration in Urban Renewal

Publication Date: 
July 1, 2003
Policymakers in states from Iowa to Utah and in cities from Albuquerque to Boston have realized that immigration is a key source of long-term economic vitality, particularly in urban areas...
  • Research and Analysis

U.S. Soldiers from Around the World: Immigrants Fight for an Adopted Homeland

Publication Date: 
March 1, 2003
As American troops, including many immigrants, are now engaged in military action in Iraq, the Immigration Policy Center has updated its fact sheet about the role and participation of immigrants in...
  • Special Report

Have We Learned the Lessons of History? World War II Japanese Internment and Today's Secret Detentions

Publication Date: 
October 1, 2002
In the aftermath of the horrific events of September 11, 2001, our leaders have begun exercising extraordinary powers to ensure our collective safety, sacrificing the personal liberties of some,...
  • Research and Analysis

The Passage From India: A Brief History of Indian Immigration to the U.S.

Publication Date: 
June 1, 2002
From humble beginnings, Indian immigrants have overcome great odds to become one of the most influential communities in American society today.
  • Research and Analysis

Preliminary Census Data Released: New Estimates Attempt to Reveal Demographics of U.S.

Publication Date: 
March 1, 2002
A recent 2000 Census Bureau report finds an increase in foreign-born residents who are naturalized citizens. Survey data shows the foreign-born percentage of the U.S. population remains constant...
  • Fact Sheet

The 2010 Census: The Stakes of an Accurate Count

Every 10 years, as required by the U.S. Constitution, the federal government undertakes a massive nationwide effort to count the residents of the United States, who now number more than 300 million...
  • Advocacy

Comments on U.S. Immigration and Customs Enforcement Draft Detainer Policy

Recommendations that DHS promulgate new regulations that ensure more effective oversight over the issuance of detainers and better protection for those subject to detainers.

  • Advocacy

Response to DHS's request for comments in connection with a review of existing regulations (submitted April 13, 2011)

Reducing Regulatory Burden; Retrospective Review Under Executive Order 13563, 76 Fed. Reg. 13526 (Mar. 14, 2011)

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