Colorado voter registration guide
Colorado voter registration deadlines
- Register to vote (online): 8 days before Election Day
- Register to vote (by mail): Postmarked 8 days before Election Day
- Register to vote (in person): Election Day
Check your Colorado voter registration status
- If you can't remember if you're registered to vote, or you want to make sure your information is correct, you can check your Colorado registration using the Colorado voter registration lookup tool.
- If you're not registered to vote, or you need to update your voter registration information, follow the instructions below.
Colorado voter registration rules
To register in Colorado you must:
- be a citizen of the United States
- be a resident of Colorado 22 days prior to Election Day
- be 18 years old by Election Day (you may pre-register if you are 16). If you are 17, you may vote in a primary if you will turn 18 by the General Election
- not be currently incarcerated after being convicted and sentenced for a felony.
Colorado online voter registration
- You can register to vote online if you have a Colorado driver's license, driver's permit, or state-issued ID card.
- Visit the Colorado online voter registration tool.
- Fill out all the required fields.
- You will be registered to vote as soon as you finish the workflow.
- You should receive your voter registration card in the mail within 2-3 weeks. If not, you might want to follow up with your local election office.
- The deadline to register to vote online is 8 days before Election Day.
Colorado by-mail voter registration
- Download and fill out the National Voter Registration Form.
- Box 6 - ID Number: Provide your Colorado driver’s license number or identification number. If you do not have either of these numbers, provide the last 4 digits of your social security number. If you do not have any of these numbers, write "NONE" in this space.
- Box 7 - Choice of Party: You may register with a party. If you leave this section blank you will not be registered with any party.
- Box 8 - Race or Ethnic Group: Leave blank.
- Print, date, and sign the form. If you do not have a printer, you can print the form out at any local library. If you do not have a stamp, you can buy one from any grocery store: just ask the cashier to sell you one.
- Mail your voter registration form to the mailing address below. For faster delivery, send the form directly to your local election office.
- Your voter registration form must be postmarked 8 days before Election Day
Colorado in-person voter registration
- Contact your local election office to find where to register to vote in person.
- Bring your Colorado driver's license or state ID card with you. If you don't have one, bring one photo ID issued by any state or federal government, and bring one document that shows your name and current address. Acceptable documents include a recent utility bill, bank statement, paycheck, residential lease, or any government document that shows your name and address.
Colorado same day registration
- Summary: Colorado has same day registration. You can register and vote during the early voting period and on Election Day.
- Where to go:
Go to your designated voting location. Click here to find out where to vote.
- What to bring:
Bring your Colorado driver's license or state ID card with you. If you don't have one, bring one photo ID issued by any state or federal government, and bring one document that shows your name and current address. Acceptable documents include a recent utility bill, bank statement, paycheck, residential lease, or any government document that shows your name and address.
- Need help? Contact your local election office if you have questions.
Registering to vote in Colorado with a felony conviction
If you have been convicted of a felony and would like to register to vote, please visit Restore Your Vote. They will help you determine your eligibility and guide you through the process.
Local election office
Contact your local election office if you have questions.
Statewide election office
This is the statewide agency that is ultimately responsible for Colorado elections. You can contact them with questions, but your local election office will probably respond faster.
Colorado Secretary of State 1700 Broadway, Suite 200 Denver, CO 80290
- Colorado online voter registration
- Colorado voter status lookup
- Colorado absentee ballot tracker
- Colorado polling place locator