Where to vote in Longmont, 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
Most of Longmont (99% of its people) is in Boulder County; parts are in Weld County. You vote with the county you live in. Longmont has about 100,109 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 Longmont 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 |
Longmont voting questions
How do I vote in Longmont?
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 Longmont?
303-413-7740, the Boulder County Clerk and Recorder, 1750 33rd St., Ste. 200, Boulder, CO 80301.
Which county runs elections in Longmont?
Boulder County, for most of the city (99% of its people). Parts of Longmont are in Weld County; voters there use their own county.
More for Longmont voters
- Colorado voting deadlines 2026: registration, mail ballots, early voting and Election Day.
- Boulder County election office: address and phone.
- Weld County, for the part of Longmont in it.
- 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, Boulder.
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.