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 Ridge, Darien, and Willowbrook.

Local History


  • Browse topics arranged by community, and share your memories

Photos of People and Places

  • Flickr: Look through online photo albums of people, places, and events
  • Historypin: View images of buildings and places overlaid on Google Street View for "then and now" perspectives

 Obituary Index

  • Search for obituaries of people who resided in or whose funeral services were held in Burr Ridge, Darien, and Willowbrook 1972-2016. Updated annually.

Oral History

  • Listen to more than 100 interviews with local veterans from World War II to the Iraq War
  • Listen to interviews of long-time residents to see how the community has changed and grown