Where to vote in Boulder, Colorado on November 3, 2026
- Election DayTue, Nov 3Tuesday, November 3
- Polls open7:00 a.m. – 7:00 p.m.Local time
- Election officeBoulder County303-413-7740
Find your polling place Election office Voting dates
Boulder is in Boulder County. Boulder has about 105,689 people, by the U.S. Census Bureau's 2025 estimate, which also gives its county lines.
Boulder County election office
Boulder County Clerk and Recorder
Office: 1750 33rd St., Ste. 200, Boulder, CO 80301
Phone: 303-413-7740
Website: bouldercountyvotes.gov
Check your registration and find your polling place at GoVoteColorado.gov, the state's voter site.
Colorado voting dates for Boulder voters
| Date | What |
|---|---|
| Fri, Oct 2 Started | Ballots start going out source |
| Mon, Oct 19 | Voter service centers open source |
| Mon, Oct 26 | Register and still get a mail ballot source |
| Tue, Nov 3, 7:00 PM | Election Day: polling centers open 7:00 a.m. to 7:00 p.m. source |
| Tue, Nov 3, 7:00 PM | Register and vote in person source |
| Tue, Nov 3, 7:00 PM | Return your ballot source |
Boulder voting questions
How do I vote in Boulder?
Colorado mails every registered voter a ballot. Return it by mail or to a ballot drop box. Enter your address on the Colorado page to find the nearest.
What is the phone number of the election office for Boulder?
303-413-7740, the Boulder County Clerk and Recorder, 1750 33rd St., Ste. 200, Boulder, CO 80301.
Which county runs elections in Boulder?
Boulder County. Boulder voters register and vote with Boulder County.
More for Boulder voters
- Colorado voting deadlines 2026: registration, mail ballots, early voting and Election Day.
- Boulder County election office: address and phone.
- Who is on the Colorado 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 big cities in Colorado: Denver, Colorado Springs, Aurora, Fort Collins, Lakewood, Thornton, Arvada, Westminster, Greeley, Pueblo, Centennial, Longmont.
Office details are from the Colorado Secretary of State, Roster of County Clerks and Recorders (checked October 14, 2026). Dates are Colorado's, each linked to its source. Call the office before you go; city population and county lines are from the U.S. Census Bureau.