Important Voting Details

Key Dates & Deadlines

Mark Your Calendar

The Colorado General Election is held on Tuesday, November 3, 2026. All times below are Mountain Time.

• Now through November 3 — Register to vote and update your registration (online, by mail, in person, or same-day).
• Mid-October — Douglas County mails a ballot to every active registered voter. If yours has not arrived by about October 19, contact the county.
• By about October 26 — Last safe day to return your ballot by mail. After this, use a drop box or voter service center to be certain it arrives on time.
• Late October through November 3 — Early in-person voting at voter service and polling centers (no excuse required). Douglas County posts each site and its opening date — check the county link below before you go.
• Tuesday, November 3 by 7:00 p.m. — Ballots must be received by the county. A postmark does not count. Polls and drop boxes close at 7:00 p.m.

Ways to Vote

How You Can Cast Your Ballot

Colorado is a vote-by-mail state. Every active registered voter is automatically mailed a ballot — but you can also vote in person if you prefer.

• By Mail (the standard method) — A ballot is mailed to every active registered voter. Complete it, sign the return envelope, and send it back early.
• Ballot Drop Boxes — Official 24/7 drop boxes are open across Douglas County through 7:00 p.m. on Election Day. The fastest, safest way to return your ballot.
• Early In-Person Voting — Vote at a Douglas County voter service and polling center in the weeks before Election Day. No excuse required; see the county for sites and opening dates.
• In Person on Election Day — Vote at any Douglas County voter service center until 7:00 p.m. on November 3.

Registering to Vote

Make Sure You're Registered

To register in Colorado you must be a U.S. citizen, a Colorado resident for at least 22 days before the election, and at least 18 years old on or before Election Day. You may not be serving a sentence for a felony conviction.

• Online — Register by November 3 at the Colorado Secretary of State's site. You'll need a Colorado driver's license number, Colorado ID number, or the last four digits of your Social Security number.
• By Mail — Your completed application must be received by November 3. First-time mail registrants must include a copy of acceptable ID.
• In Person / Same-Day — Colorado allows registration through Election Day, including same-day registration at a voter service center.

ID Requirements

What to Bring When Voting In Person

If you vote in person in Colorado, you'll need to show ID. If your ID shows your address, that address must be in Colorado. Acceptable forms include:

• A valid Colorado driver's license or ID card issued by the Colorado Department of Revenue
• A valid U.S. passport
• A valid U.S. government or Colorado employee photo ID, or a U.S. military photo ID
• A valid pilot's license issued by the FAA
• An ID card issued by a federally recognized tribal government
• A Medicare or Medicaid card
• A certified copy of your U.S. birth certificate, certificate of naturalization, or Certificate of Degree of Indian/Alaska Native Blood
• A photo student ID or veteran's ID issued by a Colorado institution or the VA
• A current utility bill, bank statement, government check, paycheck, or other government document (dated within the last 60 days) showing your name and address

No ID? You can still cast a provisional ballot. After Election Day, your local election official will determine your eligibility and whether the ballot is counted.

Official Resources

Need More Help?

For polling locations, drop box sites, and the most up-to-date official information, visit the Colorado Secretary of State. Questions about the campaign? We're happy to help.

This page is provided as a voter-information courtesy. Always confirm dates and locations with the Colorado Secretary of State or the Douglas County Elections office.