• All registered voters will be mailed a ballot on October 15.
  • If you mail your completed ballot, remember to sign the back and stamp your envelope.
  • If you want to drop your ballot off, twelve 24-hour mail ballot drop-off boxes are available and require no postage.
  • To vote in person, Voter Service and Polling Centers will open beginning October 21. If you have registered to vote but have not received a ballot by mail, you will need to vote at a Voter Service Center (ID required.)

Still need to register to vote?

Visit the Secretary of State’s website, and register online. There is no registration deadline in Colorado. If you are a resident of Colorado for at least 22 days and are 18 years or older you can register and vote on the same day – up to and including Election Day. The last day to register and still be sent a ballot in the mail is October 29.

November 6 is the LAST DAY TO DELIVER your ballot.

Links for reference: