DuPage County, Illinois
Voting in DuPage County, Illinois? Find registration links, ID rules, early and absentee voting options and your sample ballot here. Home to about 937,000 people, DuPage County ranks 2nd in population among Illinois's 102 counties. In Illinois, elections are run by local election authorities: usually the county clerk, or a board of election commissioners in some cities and counties.
Next Election
March 21, 2028
Voter Portal
Register Online
What's On My Ballot?
ID Requirements
Absentee / Early Voting
Registration Deadline
Register by mail at least 28 days before an election or online until 16 days before; grace-period and same-day registration are also available in person through Election Day.
Why Voting Matters
In DuPage County, the people who show up to vote decide who represents everyone. The next election for DuPage County voters is Illinois's general primary on March 21, 2028; local elections can come sooner, so check your local election office. Many DuPage County jobs are in health care and wholesale trade, so decisions about health care costs and trade and roads hit close to home.
In the 2024 presidential election, about 450,000 ballots were cast in DuPage County, down about 7% from 485,000 in 2020. With roughly 740,000 adults living in the county, that is around 61% of adult residents, above the statewide rate of about 56%.
That means roughly 291,000 adult residents did not cast a presidential ballot. Some are not eligible, but many are, and that is a lot of untapped power. If just one in 20 of them voted, DuPage County would add about 14,500 voices, more than enough to decide a close local race.
Spread over about 328 square miles, DuPage County averages roughly 2,862 residents per square mile, one of the denser places in Illinois. The county is home to about 7.4% of Illinois's population.
ZIP codes in or partly in DuPage County include 60007, 60101, 60103, 60106, 60107, 60108, 60117 and 60120, plus 48 more. Confirm your registration, read through your sample ballot before Election Day, and choose whether you will vote early, by mail or in person. Invite someone you know in DuPage County to join you.
Voter Assistance Resources
Questions about voting in DuPage County? In Illinois, elections are run by local election authorities: usually the county clerk, or a board of election commissioners in some cities and counties. For registration, polling places, early voting and absentee ballots, contact the DuPage County election authority (county clerk or board of election commissioners).
Statewide directory, Illinois State Board of Elections' election authorities list:
https://www.elections.il.gov/electionoperations/ElectionAuthorities.aspx
See your sample ballot. Illinois election authorities list (your local election authority posts sample ballots):
https://www.elections.il.gov/electionoperations/ElectionAuthorities.aspx
You can also preview a personalized ballot at Vote411.org.
To ask a question or report a problem at the polls, call or text Election Protection at 866-OUR-VOTE (866-687-8683), a free nonpartisan hotline. For help in Spanish call 888-VE-Y-VOTA (888-839-8682); for Asian languages call 888-API-VOTE (888-274-8683).
Voters with disabilities in DuPage County can ask for an accessible voting machine, curbside voting where offered, and help from a person of their choice. If you run into barriers, contact Equip for Equality, Illinois's Protection and Advocacy agency, at (800) 537-2632. VoteRiders (844-338-8743) offers free help with voter ID.
Need a ride? Many local transit agencies and ride services offer free or discounted rides to the polls on Election Day, so check what is available before the next election. See our Illinois voter page for statewide options. Details can change, so confirm with the official election office.
Military and overseas voters can get help from the Federal Voting Assistance Program at 1-800-438-VOTE (8683) or fvap.gov.
Sign up to be an election worker
Election workers (often called poll workers) keep voting running smoothly in DuPage County. Most are paid for their time, get free training, and help their neighbors cast their ballots. You can work a full day, a shorter shift, or help before Election Day. County and municipal election offices recruit and train their own workers, and the EAC's Help America Vote page links to yours. Find out how to sign up:
https://www.eac.gov/help-america-vote
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