Early voting locations in Oak Brook, Illinois for November 3, 2026
- WhenThu, Sep 24 – Mon, Nov 2Started · 18 days left
- Where1 site in Oak Brook24 in all of DuPage County
- Hours8 a.m. to 7 p.m.Most sites; see each site
- Election DayTue, Nov 36:00 a.m. to 7:00 p.m.
Find sites near me Find by ZIP code Election office
Oak Brook addresses are in DuPage County. DuPage County lists 24 early voting sites; 1 of them is in Oak Brook and listed here.
From the DuPage County Clerk's official list, checked October 15, 2026. Hours can change, so check before you go.
Oak Brook early voting sites (1)
- Oak Brook Village Hall
1200 Oak Brook Rd, Oak Brook, IL 60523
Monday to Friday, October 19 to 23 and October 26 to 30, and Monday, November 2: 8 a.m. to 7 p.m.
Saturdays and Sundays, October 24, 25, 31 and November 1: 9 a.m. to 5 p.m.
Directions
Every early voting site in DuPage County (24) is on the DuPage County early voting page, with a ZIP code finder.
DuPage County election authority
Find your Election Day polling place with the State Board of Elections' Polling Place Locator.
Illinois voting dates for Oak Brook voters
| Date | What |
|---|---|
| Thu, Sep 24 Started | Mail ballots start going out source |
| Thu, Sep 24 Started | Early voting opens source |
| Tue, Oct 6 Ended | Last day to register by mail or at a registration site source |
| Wed, Oct 7 Started | Same-day registration opens source |
| Sun, Oct 18 | Register online source |
| Mon, Oct 19 | Early voting expands source |
| Thu, Oct 29 | Apply for a vote-by-mail ballot source |
| Mon, Nov 2 | Early voting ends source |
| Tue, Nov 3, 7:00 PM | Election Day: polls open 6:00 a.m. to 7:00 p.m. source |
| Tue, Nov 3, 7:00 PM | Register and vote the same day source |
| Tue, Nov 3 | Return your mail ballot source |
Oak Brook voting questions
Where can I vote early in Oak Brook?
At the early voting site in Oak Brook on this page, from each county's official list. DuPage County lists 24 sites in all; see the DuPage County early voting page.
When does early voting start in Oak Brook?
Early voting in Oak Brook (DuPage County) started Thursday, September 24, 2026 at the first sites to open. Some sites open later; each site's days are on this page.
When does early voting end in Oak Brook?
The last day of early voting in Oak Brook (DuPage County) is Monday, November 2, 2026. Election Day is Tuesday, November 3.
What are the early voting hours in Oak Brook?
Hours differ by site and day. The most common hours are 8 a.m. to 7 p.m. Check the site you plan to use before you go.
Who can vote early in Oak Brook?
Any registered voter in Oak Brook (DuPage County). Illinois election authorities publish their own early voting sites. Any Chicago voter can vote at any Chicago site; any suburban Cook County voter can vote at any suburban Cook County site.
What is the phone number of the election office for Oak Brook?
630-407-5600, the DuPage County Clerk, 421 North County Farm Road, Wheaton, IL 60187.
Which county runs elections in Oak Brook?
DuPage County. Oak Brook voters register and vote with DuPage County.
More for Oak Brook voters
- Illinois voting deadlines 2026: registration, mail ballots, early voting and Election Day.
- DuPage County early voting locations, every site in the county.
- DuPage County election office: address and phone.
- Who is on the Illinois ballot, race by race.
- What's on my ballot and where do I vote, from your street address.
- Voting in every major U.S. city.
Other cities and towns in DuPage County: Naperville, Addison, Bartlett, Bensenville, Darien, Downers Grove, Elmhurst, Glen Ellyn, Glendale Hts, Hinsdale, Itasca, Lisle, Lombard, Roselle, Villa Park, Warrenville, West Chicago, Westmont, Wheaton, Woodridge.
Sites, days and hours are DuPage County's own, copied from its official list (named above); office details are from the Illinois State Board of Elections, Election Authorities (checked October 14, 2026). Dates are Illinois's, each linked to its source. Call the office before you go.