There are several requirements for being eligible to vote in Colorado. First, you must be 18 years of age or older at the time of the election to be eligible to vote. Next, you must be a United States citizen. Further, you must be a Colorado resident living in your current precinct for at least 30 days prior to the election. Finally, you cannot be serving a sentence (including parole) for a felony conviction at the time of the election. The deadline for voter registration in Colorado is 29 days before Election Day. If you would like to register for the first time, confirm your registration, or update your registration, click here.

Once you are registered, you can decide if you would like to vote in person or by mail. Voting in person requires proof of identification at the polling site, such as a Colorado driver’s license or a U.S. passport. Other forms of identification will also work. See the Colorado Secretary of State Voter Registration FAQ listed below for a complete listing of qualifying identification. To view the Colorado Revised Statutes related to Elections, please see C.R.S. 1-1-101 to 1-1-403 for applicable laws.

For more information about Colorado elections or to register to vote online, please see the links below.

  • Colorado Secretary of State Voter Registration FAQs
    This site contains a collection of Frequently Asked Questions answered by the Colorado Secretary of State, including a listing of accepted forms of identification for voting in person. Click “Version en Espanol” for Spanish language.
  • How do I register to vote for the first time?
    If you have a valid Colorado State driver’s license or an ID card issued by the Department of Revenue, you may register online.
    If you do not have either a valid Colorado Driver’s License or an ID card issued by the Department of Revenue, you may print, sign, and submit a Colorado Voter Registration Form.
    Click here for more information. Haga clic aqui para la versión en Español.
  • What if I am in the military or live overseas?
    Information for uniformed or overseas electors is available on the Colorado Elections Division website. Click here for information regarding uniformed or oversees electors and for links to other useful sites.
  • How do I confirm that I am registered to vote?
    The Colorado Secretary of State Elections Division provides a useful online tool for verifying your registration status. Click here to check your voter registration status. You may also contact your County Clerk and Recorder. Click here for a listing of Colorado County Clerk and Recorder offices.