If you’re registered to vote in Colorado, you don’t have to seek out early voting—it comes to you. The state automatically mails a ballot to every active registered voter, and in 2024, more than 92% of Coloradans cast that mail ballot rather than voting in person.
Here’s what to know for the Nov. 3 general election:
- Sept. 29–Oct. 9: County clerks mail ballots to every active registered voter.
- Oct. 12: Ballot drop boxes open statewide, available 24 hours a day.
- Oct. 26: Deadline to register online or update your address and still get a ballot in the mail. You can still register after this date, but only in person.
- Election Day Nov. 3 at 7 p.m.: Ballots must be received—not just postmarked—to count.
Mailing it back?
Send your ballot by mid-to-late October. RMPBS recommends switching to a drop box on Oct. 27, since a ballot must physically arrive by Election Day no matter when it was postmarked.
Voting in person.
Voter Service and Polling Centers (VSPCs) open in the weeks before Election Day and stay open through 7 p.m. Nov. 3. They let you register same-day, replace a lost or damaged ballot, use accessible voting equipment, or drop off your mail ballot in person. Find your nearest VSPC or drop box at GoVoteColorado.gov.
Track your ballot.
Sign up for free text or email alerts through BallotTrax to see when your ballot is mailed, received, and counted.
One change this year: Under a new state law passed this year, ballots go out and drop boxes open earlier than in past elections.
