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. Immigration in the United States is complex and ever-evolving. Start here to understand the fundamental aspects of immigration policy, its history, and its impact on both individuals and the country at large. Learn commonly used terms about immigration law and how the U.S. immigration system is designed. Explore layered topics like how and whether immigrants can become citizens, as well as what individual protections look like under the law.
How the United States Immigration System Works
- How the Immigration System Works
- June 23, 2024
U.S. immigration law is very complex, and there is much confusion as to how it works. This fact sheet provides basic information…
Read MoreBirthright Citizenship in the United States
- Birthright Citizenship
- October 16, 2024
This fact sheet explains birthright citizenship, the Fourteenth Amendment, and its interpretations. Who is…
Read MoreAsylum in the United States
- Asylum
- August 27, 2014
Asylum seekers must navigate a difficult and complex process that can involve multiple government…
Read More
How Personal Values and Contact Impact Views on Unauthorized Immigrants
A new report by the American Immigration Council finds that Americans’ attitudes toward unauthorized immigrants are, among other factors, deeply related to their personal values and to the type of contact they have with immigrants in their daily lives. Read More

The Role of Contact and Values in Public Attitudes Toward Unauthorized Immigrants
This report uncovers the degree to which contact with immigrants and personal values are associated with views about unauthorized immigrants. Read More

Statement for the House Judiciary Subcommittee on Immigration and Border Security on “The Effect of Sanctuary City Policies on the Ability to Combat the Opioid Epidemic”
The statement includes our report, The Criminalization of Immigration in the United States, which details empirical data demonstrating that immigration is not linked to higher crime rates. Read More
Make a contribution
Make a direct impact on the lives of immigrants.
