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Mar 5
Colorado Presidential Primary Election

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Registration Summary

Colorado offers online voter registration. You can register by mail to vote in Colorado by printing a voter registration form, filling it out, and mailing it to your local election office. You can also register to vote in person if you prefer.

Voting Summary

A few weeks before the election, Colorado will mail a ballot to every voter registered at least eight (8) days before Election Day. Keep an eye on the mailbox! Be sure to mail it back so that it is received by Election Day, or drop it in a drop box before or on Election Day! You can also vote in person during early voting and on Election Day if you prefer to do so. If you register to vote less than eight (8) days before Election Day, you can vote in person.

Election Day is today!

  • Don't forget to vote and drop off your ballot. Find drop-off locations.
  • If you're an active registered voter and you submitted your voter registration application by Feb 26, you should have received your ballot in the mail. If you don't have your ballot, you can still vote in person today. Find where to vote and check voting location hours. Text a friend to go with you!
  • If you’re not registered, you can register at your voting location.

Do I have to register with a party to vote in this election?

You are NOT required to register with a party to participate in Colorado partisan primary elections. If you do not register with a party, you may choose the party primary you wish to vote in. If you choose to register with a party, you can only vote in that party's primary. If you are an unaffiliated voter and return a ballot with more than one political party, the ballot will be rejected and none of the votes will be counted.

How do I register with a party?

You will be able to select a party affiliation when you register to vote. If you register to vote and affiliate with a political party, you may only vote in that party’s primary election.

If you are an unaffiliated voter, you may choose to vote in either the Democratic or Republican Party’s primary election by selecting and voting that party’s ballot. Choosing a primary ballot does NOT affiliate you with the corresponding party. Minor political parties may allow unaffiliated voters to participate in their primary elections.

How do I vote in a primary?

Colorado conducts elections primarily by mail. If you are an active registered voter and you submitted your voter registration application at least eight days before Election Day, then you can expect to receive a ballot in the mail. If you are an unaffiliated voter, you will receive ballots for both major political parties, and you may return only one party’s ballot.

You may choose to vote a party’s primary ballot if you visit a Voter Service and Polling Center during early voting or on Election Day.

Can I still vote in a primary election if I do not register with a party?

If you do not register with a party in Colorado, you can choose to vote in either the Democratic or Republican Party’s primary election by selecting and voting that party’s ballot. Minor political parties may allow unaffiliated voters to participate in their primary elections.

How do I vote in person?

Where can I vote on Election Day?

You can look up where to vote on Colorado's site.

Can I vote early?

  • Yes, early voting is offered in this election. You can choose whether to vote on Election Day or during the early voting period, whichever is easier for you. This can be especially helpful if it would be difficult or not possible for you to vote on Election Day. Early voting locations may be less crowded, as well.
  • Learn more about voting early in Colorado.
  • Early voting locations may be different from where you vote on Election Day. Check Colorado’s site to find where to vote early.

What do I need to bring?

If you choose to vote in person in Colorado, you will need to show ID. If your form of identification shows your address, that address must be in the state of Colorado.

Acceptable forms include:
  • Colorado driver's license
  • valid ID card issued by the Colorado Department of Revenue
  • US passport
  • employee ID with photo issued by any entity of the US government or Colorado
  • pilot's license issued by the FAA or other authorized agency of the US
  • US military ID with photo
  • ID card issued by a federally recognized tribal government
  • Medicare or Medicaid card
  • certified copy of your US birth certificate
  • certificate of Degree of Indian or Alaskan Native Blood
  • certified documentation of naturalization
  • student ID with photo issued by a Colorado institute of higher education
  • veteran's ID with photo issued by the VA
  • current utility bill, bank statement, government check, paycheck, or other government document showing name and address (within last 60 days)

Voters without ID: If you are unable to provide ID, you will be able to vote a provisional ballot, or you may request a mail ballot to take home, sign, and return to your county clerk. Your signature is used to verify your identity on a mail ballot.

Can I register to vote online?

  • Colorado offers online voter registration.
  • You should know: you need a Colorado driver's license, Colorado ID card, or valid Social Security number to use Colorado's online voter registration system. If you don't have a Colorado-issued ID or Social Security number, you can still submit a voter registration application in person or by mail.

Can I submit voter registration forms by mail?

Use the National Voter Registration Form

  1. Print and fill out the National Voter Registration Form.
  2. Box 6 - ID Number: Your completed voter registration form must contain your Colorado driver's license number or identification card number. If you do not have a driver's license or Colorado-issued ID, you must include the last four digits of your Social Security number. If you do not have a Colorado driver's license or a Colorado-issued identification or a Social Security number, please write "NONE" on the form. A unique identifying number will be assigned by the State.
  3. Box 7 - Choice of Party: You are NOT required to register with a party to participate in Colorado partisan primary elections. If you do not register with a party, you may choose the party primary you wish to vote in. If you choose to register with a party, you can only vote in that party's primary. If you are an unaffiliated voter and return a ballot with more than one political party, the ballot will be rejected and none of the votes will be counted.
  4. Box 8 - Race or Ethnic Group: Leave blank. This information is not required.
  5. Review the "Who can register to vote?" section above and check that you're eligible.
  6. Sign the form.
  7. Send the completed form to your local election office
  8. If you are registering to vote for the first time in your jurisdiction and are mailing this registration application, federal law requires you to show proof of identification the first time you vote. Proof of identification includes current and valid photo identification OR current utility bill, bank statement, government check, paycheck or government document that shows your name and address. More information here.

How do I vote by mail?

Colorado conducts elections primarily by mail. If you are an active registered voter and you submitted your voter registration application at least eight days before Election Day, then you can expect to receive a ballot in the mail. It will be sent to the mailing address on your voter registration file.

If you are voting by mail for the first time, you may also need to provide a copy of your ID when you return your mail ballot. For more information, please visit the Colorado Secretary of State's website.

What should I do if I don’t get my ballot?

If you don’t receive your ballot in the mail, then contact your local election office. You can also vote in person at a voter service and polling center.

How do I return my ballot?

What do I need to do if I’ve moved?

What’s on your ballot depends on where you live, so your voter registration is tied to your exact address. If you’ve moved, you need to re-register with your new address.

How can I check the status of my ballot?

You can check the status of your ballot on Colorado’s site.

Can I register to vote on Election Day?

Yes, you can register at your voting location on Election Day.

Can I submit voter registration forms in person?

What are key deadlines for this election?

Do I need to bring an ID to vote in person?

If you choose to vote in person in Colorado, you will need to show ID. If your form of identification shows your address, that address must be in the state of Colorado.

Acceptable forms include:
  • Colorado driver's license
  • valid ID card issued by the Colorado Department of Revenue
  • US passport
  • employee ID with photo issued by any entity of the US government or Colorado
  • pilot's license issued by the FAA or other authorized agency of the US
  • US military ID with photo
  • ID card issued by a federally recognized tribal government
  • Medicare or Medicaid card
  • certified copy of your US birth certificate
  • certificate of Degree of Indian or Alaskan Native Blood
  • certified documentation of naturalization
  • student ID with photo issued by a Colorado institute of higher education
  • veteran's ID with photo issued by the VA
  • current utility bill, bank statement, government check, paycheck, or other government document showing name and address (within last 60 days)

Voters without ID: If you are unable to provide ID, you will be able to vote a provisional ballot, or you may request a mail ballot to take home, sign, and return to your county clerk. Your signature is used to verify your identity on a mail ballot.

How do I get help registering to vote?

TurboVote can help you make your plan to vote. They can help you start the registration process, learn how to vote by mail, send you election reminders, and more.

Who can register to vote?

To register in Colorado you must:
  • be a citizen of the United States
  • be a resident of Colorado for at least 22 days immediately before the election in which you intend to vote
  • be at least 16 years old, and you must be at least 18 on or before election day to be eligible to vote
  • not be serving a sentence of detention or confinement for a felony conviction

How do I vote if I'm in the military or live overseas?

Active-duty military, their families, and overseas citizens can register to vote and request their absentee ballot using the Federal Post Card Application (FPCA). The FPCA process is done by mail, but your state may offer other options to request and return ballots. Please contact your local election office for more information about delivery and return methods, including email, fax, and state online portals. To follow the FPCA process:
  1. Fill out the Federal Post Card Application (FPCA), or download a copy. Your local election office may have questions, so please provide an email address or phone number where they can reach you.
  2. Send the application to your local election office.
  3. It is never too early to submit an FPCA! Please do so as soon as possible.
  4. Please fill out and send back your ballot as soon as you receive it.
  5. States begin mailing absentee ballots at least 45 days before Election Day. If you haven't received your ballot by 30 days before Election Day, contact your local election office.
If your ballot does not arrive after you submit your FPCA, contact your local election office first. Then:
  • You can still vote using the Federal Write-In Absentee Ballot (FWAB). Print, sign, and mail your FWAB to your local election office.
  • If you mail a FWAB and then receive your regular absentee ballot, you should complete and mail your absentee ballot also. Election officials will ensure that only one ballot is counted.
The Federal Voting Assistance Program offers additional information on military and overseas voting in Colorado. You can also call 1-800-438-VOTE (8683) or email vote@fvap.gov

How can I check my voter registration status?

You can look up your voter registration record and verify that your information is correct using Colorado's voter registration lookup tool.

How do I contact my state election office?

Which election office should I contact?

  • In Colorado, your local election office runs the elections in your area. They can help you with questions about registering to vote, voting by mail, and local elections.
  • The Secretary of State oversees elections and election administration in Colorado. They can help you with questions about voting in your state, election security, or issues you might have at the polls. If you have concerns about voter intimidation, reach out immediately.

How do I contact my local election office?

Visit your state’s site to find your local election office.