To complete Colorado voter registration, you must be a U.S. citizen, be 18 or older by the next election, and have lived in Colorado for at least 22 days before that election.1Justia. Colorado Code 1-2-101 – Qualifications for Registration – Preregistration You can sign up online at GoVoteColorado.gov, by mail, in person at any voter service and polling center, or automatically when you visit the DMV. Because Colorado mails a ballot to every registered voter, the address on your registration decides where your ballot lands, so keeping it current matters as much as signing up in the first place.
Who Qualifies
The three qualifications — citizenship, age, and 22 days of Colorado residency before the election — are the whole test. You don’t need to own property or have a permanent home; the standard is whether you live in the state and intend to stay.
A felony conviction affects eligibility only while you are actually incarcerated or detained for that felony. The day you are released, your right to vote is restored. You do not have to finish parole or probation first, because Colorado treats parole as completion of the imprisonment portion of the sentence.2Colorado Secretary of State. Voters with Convictions FAQs
Preregistration at 15 and 17-Year-Old Primary Voting
Colorado residents can preregister starting at age 15. Once a preregistered person turns 18, the registration activates automatically with no extra step.1Justia. Colorado Code 1-2-101 – Qualifications for Registration – Preregistration A 17-year-old who will be 18 by the next general election can also vote in the primary or presidential primary that precedes it.
What You Need to Register
The registration form asks for your Colorado driver’s license number or state ID card number. If you don’t have either, you can give the last four digits of your Social Security number. If you have none of those, the Secretary of State will assign you a unique number so you can still register.3Justia. Colorado Code 1-2-204 – Registration Form Lacking any of these documents doesn’t disqualify you.
Beyond the identification number, you’ll provide your full legal name, date of birth, residential address, and a mailing address if it differs from where you live. Your residential address controls which ballot you receive — your precinct, your congressional district, and every down-ballot race depend on it. The mailing address is simply where the ballot gets sent. You can declare a party affiliation on the form; if you leave that question blank, you default to unaffiliated.3Justia. Colorado Code 1-2-204 – Registration Form
The form ends with an affirmation that you meet voter qualifications and that everything you provided is true. Submitting false information is a criminal offense.
If your registration gets flagged for identity verification (typical when you register without a Colorado ID number), you can supply a current utility bill, bank statement, or government check showing your name and Colorado address; a valid Medicare or Medicaid card; a certified U.S. birth certificate; naturalization documents; a Colorado college photo ID; or a tribal government ID card.4Colorado Secretary of State. Acceptable Forms of Identification Any document on that list that shows an address must show a Colorado address.
Four Ways to Register
Every method is free.
- Online at GoVoteColorado.gov. This is the fastest route if you have a Colorado driver’s license or state ID, because the system verifies your identity in real time.
- By mail. Print the paper form from the Secretary of State’s website, fill it out, and mail, fax, or email the signed form to your county clerk and recorder.
- In person. Walk into any voter service and polling center or your county clerk’s office.
- Automatically at the DMV. When you apply for, renew, or correct a Colorado driver’s license or state ID, your information is forwarded to the county clerk for voter registration.
With DMV registration, the clerk reviews your record and mails a notice that you have been registered. You then have 20 days from the date that notice is mailed to return it and decline. Do nothing, and your registration becomes active.5Colorado General Assembly. SB19-235 Automatic Voter Registration The same notice is where you declare a party; ignore it and you’re registered as unaffiliated.
After any of these methods, your county clerk will send a confirmation once your application is processed.6Colorado Secretary of State. Voter Registration FAQs
Registration Deadlines
The deadline depends on how you register.
- Online or by mail: submit your application by the eighth day before Election Day to receive a mail ballot at your address.7Vote.gov. Register to Vote Colorado
- In person: register and vote on the same visit at any voter service and polling center in your county, from 15 days before a general election (or 8 days before other elections) through Election Day itself.8Justia. Colorado Code 1-2-217.7 – Registration at Voter Service and Polling Centers
Same-day registration is the safety net. If you missed the mail deadline, just moved, or discover a problem on Election Day, go to a voter service and polling center in the county where you live, complete a registration form on-site, and cast a ballot.
Keeping Your Registration Current
An outdated address means your mail ballot goes to the wrong place or nowhere at all.9Colorado Secretary of State. Mail-in Ballots FAQs If you move within Colorado, update your address online at GoVoteColorado.gov, by mailing or delivering a change form to your county clerk, or in person at a voter service and polling center. The form needs your new address, old address, full name, date of birth, and signature.10Justia. Colorado Code 1-2-216 – Change of Address Online and mail updates must be submitted by the eighth day before an election to affect that election’s mail ballot. After that, update in person through Election Day.
Name changes from marriage, divorce, or a court order, and party affiliation changes, use the same channels. You can bundle a name change, address change, and party change on one signed form.10Justia. Colorado Code 1-2-216 – Change of Address
If Your Registration Is Marked Inactive
Your registration can be switched to “inactive” if the county clerk gets information suggesting you’ve moved, such as mail returned undeliverable. Inactive doesn’t mean removed. Not voting in an election, on its own, does not make your registration inactive, and you’ll keep receiving mail ballots unless there’s reason to believe you left the state.6Colorado Secretary of State. Voter Registration FAQs
Reactivating is quick: submit a signed written request, complete an online registration application at GoVoteColorado.gov, or ask in person at your county clerk’s office. Check your current status any time using the Secretary of State’s voter lookup tool.
Special Situations
College Students
If you attend college in Colorado, you can register here as long as you consider your campus-area address your primary residence, meaning the place you live and intend to return to when away. Colorado defines residence as your principal home, regardless of how long you’ve been there.11Colorado Secretary of State. Voting While in College The choice is yours, but you cannot be registered in both Colorado and your home state. Registering here should cancel your registration back home, and later registering in another state ends your Colorado registration. A valid Colorado student photo ID from a higher education institution counts as acceptable identification.4Colorado Secretary of State. Acceptable Forms of Identification
No Fixed Address
You do not need a traditional home address. If you are experiencing homelessness, you can use any specific location within a county that you regularly return to and intend to remain near. Colorado law expressly permits a shelter, a homeless services provider, a park, a campground, a vacant lot, or a business address to serve as your registration residence.12Justia. Colorado Code 1-2-102 – Rules for Determining Residence If the location doesn’t receive mail, you also provide a separate mailing address for election materials. That address stays valid until you establish a new one.
Military and Overseas Voters
Colorado residents in the military or living abroad can register and request an absentee ballot using the Federal Post Card Application (FPCA). Every state accepts the FPCA by mail, and Colorado also accepts it by fax or email.13Federal Voting Assistance Program. Voter Registration and Absentee Ballot Request Federal Post Card Application If you don’t have a Colorado driver’s license or state ID, you can also use the standard Colorado paper registration form.14Colorado Secretary of State. Military and Overseas Electors On the FPCA you can pick how you want to receive your voting materials: mail, email, or fax. Submit early, since international mail can be slow.
Voter Privacy Options
Colorado voter registration records are generally public, meaning your name, address, and party affiliation can appear on lists available to campaigns and other requesters. If you believe public availability would expose you or a household member to criminal harassment or bodily harm, you can ask your county elections office for confidential voter status, which withholds your information from public data requests.
Survivors of domestic violence, sexual offenses, or stalking have another option: Colorado’s Address Confidentiality Program (ACP). Participants receive a substitute address from the state and use a special ACP registration form listing both the actual and substitute addresses. State and local agencies must accept the substitute address as the voter’s official address. ACP participants should register only through the ACP process, not at a DMV or county human services office, which could expose the real address. Confidential voters can’t track their ballot online or update their registration electronically; changes must be made on paper or in person with valid ID.
Canceling Your Registration
If you move out of state or want to withdraw, complete the “Withdrawal of Colorado Voter Registration” form. It asks for your legal name, date of birth, identification number (driver’s license or last four digits of your Social Security number), and signature.15Colorado Secretary of State. Withdrawal of Colorado Voter Registration Mail or deliver the signed form to your county clerk and recorder, or email it to the Secretary of State’s Elections Division at Public.Elections@coloradosos.gov. Cancellation takes effect the day the form is received. After that, you can’t vote in Colorado again without submitting a new registration.