The Colorado Law Project

Register to Vote

Eligibility to Vote

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 and have resided in this state for 22 days immediately prior to the election in which you intend to vote. Finally, you cannot be serving a sentence, including parole, for a felony conviction at the time of the election.

C.R.S. § 1-2-101.

Register to Vote

You must register to vote prior to casting your ballot. There is no registration fee. A person may timely register to vote by:

· On the day of the election, appearing in person at a polling center during open hours.

· Through a voter registration drive no later than 22 days before the election.

· Or, submit an application through mail, a voter registration agency, a local driver’s license exam facility, or the Colorado Secretary of State online voter registration system through the 8th day prior to the election.

C.R.S. § 1-2-201(1)

Proof of Identification

If you are submitting a registration form and have never voted in the state before, you will need to submit a copy of identification. To register online, you will need either a valid Colorado Driver’s License or an ID card issued the Department of Revenue.

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. If you are voting by mail for the first time, you may need to submit a copy of your identification with your mail ballot.

  1. here for a list of acceptable forms of identification. C.R.S. § 1-7-110, 1-1-104(19.5)(I)-(XIII).


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.
Sturm College of Law
University of Denver
2255 E. Evans Avenue
Denver, CO 80208