Learn about U.S. Citizenship and Immigration Services

Study for the Test

Applying for Citizenship

  • Citizenship Works
    Citizenshipworks is a free online service that helps you apply for citizenship, step-by-step. It tells you about any potential problems with your application and connects you to the expert help you need, either online or in person. It also tells you what other documents you need to submit, and what to expect after you apply.

Find Citizenship Tutors and Classes

We partner with the Darien Historical Society, the Flagg Creek Heritage Society, as well as local residents, businesses, and municipalities to share the histories of Burr RidgeDarien, and Willowbrook.

Visit our Local History Site


  • Browse topics and library resources on local history

View Photos of Local People and Places

  • Burr Ridge
  • Darien
  • Willowbrook
  • View how places and buildings looked then and now using Historypin (select Street View)
  • Follow one or all of our local historyboards on Pinterest
  • Search for obituaries of people who resided in or whose funeral services were held in Burr Ridge, Darien, and Willowbrook 1972-2016. Updated annually.

Experience Local History

  • Listen to interviews with local veterans 
  • Listen to interviews of long-time residents to see how the community has changed and grown