Learn how to check your immigration application or petition with the USCIS online or by phone. Learn about naturalization, dual citizenship, and proving or renouncing your citizenship. Learn about work, student, and tourist visas, how to renew your visa, and what to do if your visa is lost.

Immigration to the United States has been a major source of population growth and cultural change throughout much of its history. In absolute numbers, the United States has by far the highest number of immigrants in the world, with 50,661,149 people as of 2019.

USCIS has resources to help. Check for current office closure, COVID information and office location prior to visiting one of our offices. Filing a form online is easier and faster than paper filing. It gives you a simple and personalized way to track your case online. You can also access other USCIS services.

Foreign citizens wishing to immigrate and live permanently in the U.S. must comply with U.S. visa immigration laws, and specific procedures to apply for visas. At DHS, U.S. Citizenship and Immigration Services (USCIS) is responsible for immigration matters, including naturalization.

U.S. immigration laws provide a variety of ways for people to apply for a Green Card. The eligibility requirements may vary depending on the immigrant category you are applying under. Go to our Green Card Eligibility Categories page to see all the possible categories you can apply under and what the eligibility requirements are.

Do you want to immigrate to the United States, meaning you want to move here permanently? Do you want to sponsor someone to immigrate? Immigrant visas are based on family ties, employment, and the diversity visa.

Find out if you’re eligible, and get more information about living and working in the U.S. permanently. We have some helpful information about updating your address, case processing times, case status updates, and travel. Learn more about how and when to …

Learn how to seek refuge or asylum in the U.S. Also find U.S. embassies around the world. Learn about the DV Lottery and other ways to apply for an immigrant visa. Find out how to become a permanent resident. Get, renew, or replace a Green Card.

The U.S. Citizenship and Immigration Services (USCIS) is responsible for processing immigration and naturalization applications and establishing policies regarding immigration services.

Are you interested in immigrating to the United States or want to sponsor someone? The United States provides for immigrant visas based on family ties, employment, adoption, special immigrant categories, and the diversity visa.