Poll times
In Colorado, polls are open from 7:00 a.m. to 7:00 p.m. local time for those who choose to vote in person rather than by mail. An individual who is in line at the time polls close must be allowed to vote.[1][2]
Registration
- Check your voter registration status here.
In Colorado, an individual can pre-register to vote if they are at least 15 years old. Voters must be at least 18 years old to vote in any election. A voter must be a citizen of the United States and have established residence in Colorado to vote.[3]
Colorado voters can register to vote through Election Day. However, in order to automatically receive a absentee/mail-in ballot, a voter must register online, through the mail, at a voter registration agency, or driver's license examination facility at least eight days prior to Election Day. A voter that registers through a voter registration drive must submit their application no later than 22 days before the election to automatically receive an absentee/mail-in ballot. A voter can register online or submit a form in person or by fax, email, or mail.[3][4][5]
- See also: Automatic voter registration
Colorado automatically registers eligible individuals to vote through the Department of Motor Vehicles and certain other state agencies.
- See also: Online voter registration
Colorado has implemented an online voter registration system. Residents can register to vote by visiting this website.
- See also: Same-day voter registration
Colorado allows same-day voter registration for individuals who vote in person.
Residency requirements
Colorado law requires 22 days of residency in the state before a person may vote.[4]
Verification of citizenship
- See also: Laws permitting noncitizens to vote in the United States
Colorado does not require proof of citizenship for voter registration. An individual applying to register to vote must attest that they are a U.S. citizen under penalty of perjury.
All 49 states with voter registration systems require applicants to declare that they are U.S. citizens in order to register to vote in state and federal elections, under penalty of perjury or other punishment.[6] Seven states — Alabama, Arizona, Georgia, Kansas, Louisiana, New Hampshire, and Wyoming — have laws requiring verification of citizenship at the time of voter registration, whether in effect or not. One state, Ohio, requires proof of citizenship only when registering to vote at a Bureau of Motor Vehicles facility. In three states — California, Maryland, and Vermont — at least one local jurisdiction allows noncitizens to vote in some local elections. Noncitizens registering to vote in those elections must complete a voter registration application provided by the local jurisdiction and are not eligible to register as state or federal voters.
Verifying your registration
The site Go Vote Colorado, run by the Colorado Secretary of State office, allows residents to check their voter registration status online.
Voter ID requirements
Colorado requires voters to present non-photo identification when voting in person. If voting by mail for the first, a voter may also need to return a photocopy of his or her identification with their mail-in ballot. Click here for more information.
The following list of accepted forms of identification was current as of October 2025. Click here for the most current information, sourced directly from the Office of the Colorado Secretary of State.
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The following documents are acceptable forms of identification:
- A valid Colorado driver’s license or valid identification card issued by the Colorado Department of Revenue. (Note: documents issued to not lawfully present and temporarily lawfully present individuals under Part 5 of Article 2 of Title 42, C.R.S. are not acceptable forms of identification.)
- 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 issued by the federal aviation administration or other authorized agency of the U.S.
- A valid U.S. military identification card with a photograph of the eligible elector.
- 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 issued by the Centers for Medicare and Medicaid Services.
- A certified copy of a U.S. birth certificate for the elector.
- 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, as defined in section 23-3.1-102(5), C.R.S..
- A valid veteran identification card issued by the U.S. department of veterans affairs veterans health administration with a photograph of the eligible elector.
- 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.
The following documents are also considered acceptable forms of identification for voting:
- Verification that a voter is a resident of a group residential facility, as defined in section 1-1-104(18.5), C.R.S.
- Verification that a voter is a person committed to the department of human services and confined and eligible to register and vote shall be considered sufficient identification of such person for the purposes of section 1-2-210.5, C.R.S.
- Written correspondence from the county sheriff or his or her designee to the county clerk indicating that a voter is confined in a county jail or detention facility.[7][8]
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- Note: SB 1, signed into law on May 12, 2025, specified that tribal IDs issued by the Bureau of Indian Affairs, the Indian Health Service, or another federal agency were also valid identification.
