State of Colorado Voting and Elections  

Election Day is November 5

October 29                  Deadline to submit voter registration to receive a vote-by-mail ballot (same-day registration is available in person at the polls)

November 5                Deadline for election authority to receive vote-by-mail ballot

November 5                Election Day


To register to vote in Colorado, you must:

  • Be a United States citizen
  • Be 18 years old by election day (16- and 17-year-olds may pre-register)
  • Be a Colorado resident for at least 22 days immediately before the election you intend to vote in
  • Not be currently serving a term of imprisonment for a felony conviction


How to register to vote:

If you register to vote at least eight days before an election conducted by your county clerk and recorder, the clerk will automatically mail you a ballot. If you register after the eighth day before Election Day, you must visit one of the Voter Service and Polling Centers in your county to get a ballot.


Mail-In Ballots

Colorado has all vote-by-mail elections. All registered voters automatically receive a ballot in the mail before every primary and general election. Voters are encouraged to drop off ballots at designated drop off sites, drop-boxes, or mail their ballots in time to be received by the county clerk before the polls close. Postmarks do not count; ballots must be in the hands of the county clerk by 7:00 PM on Election Day in order to be counted.


Voter ID Requirements

All voters who vote at the polls must provide identification. If you are voting by mail for the first time, you may also need to provide a photocopy of your identification when you return your mail ballot. The following documents are acceptable forms of identification:

  • A valid Colorado driver’s license or valid Colorado identification card
  • A valid U.S. passport.
  • A valid employee identification card with a photograph of the eligible elector issued by any branch, department, agency, or entity of the U.S. government or of Colorado, or by any county, municipality, board, authority, or other political subdivision of Colorado.
  • A valid pilot’s license
  • A valid U.S. military identification card with a photograph
  • A copy of a current (within the last 60 days) utility bill, bank statement, government check, paycheck, or other government document that shows the name and address of the elector
  • A Certificate of Degree of Indian or Alaskan Native Blood.
  • A valid Medicare or Medicaid card
  • A certified copy of a U.S. birth certificate
  • Certified documentation of naturalization.
  • A valid student identification card with a photograph of the eligible elector issued by an institute of higher education in Colorado
  • A valid veteran identification card with a photograph
  • A valid identification card issued by a federally recognized tribal government certifying tribal membership.

Any form of identification listed above that shows your address must show a Colorado address to qualify as an acceptable form of identification.

Visit VoteRiders for more information on voter ID requirements in Colorado.



Tribes in Colorado

Federally recognized tribes

  • Ute Mountain Ute Tribe
  • Southern Ute Indian Tribe of the Southern Ute Reservation, Colorado

State recognized tribes

  • None

Native Vote Coordinators

Sign up to be a local Native Vote coordinator today!

Major Party Contacts

Chair, Shad Murib

Chair, Dave Williams

Posted in States.