Citizenship—How to Apply for U.S. Citizenship

The process to apply for citizenship can begin online.

Start at the U.S. Department of Homeland Security's Become a Citizen for guidance, information and a link to forms.

  • The section What You Need to Know describes the process of becoming a U.S. Citizen.
  • The Start Here section links to resources and forms provided by the U.S. Citizenship and Immigration Services (USCIS).
  • At the USCIS Citizenship and Naturalization Based Forms page, forms you need are linked.

Citizenship Exam Help


Find the information you need by calling the library's Infoline at 520-791-4010 or by sending your question to Ask a Librarian.