Information below last updated in Fall 2014. Please check back soon for 2015 registration dates and election information.
Election Day: 7:00 a.m. to 7:00 p.m.
Colorado also allows early voting beginning ten days before a primary election and fifteen days before a general election. See below for more information.
Colorado allows you to register to vote through Election Day. However, how you register to vote matters.
2014 Primary Election: June 2, 2014 (when at a voter registration), June 16, 2014 (when registering online).
2014 General Election: October 14, 2014 (when at a voter registration), October 27 (when registering online and requesting a mail-in ballot). You can register to vote on Election Day at the polls.
How to Check if You Are Registered
Verify your registration status online here.
Contact your County Election Office.
How to Register
Individuals may register to vote online in Colorado. Online voter registration requires that you have a valid Colorado Driver’s License number or Colorado ID card number (to obtain a Colorado ID card, you must visit a DMV location in person). If you have moved, you must first update your address with the DMV, which you can do through the Colorado DMV website, or else at the Colorado Secretary of State’s website. Online applications must be submitted on or before the deadline to be valid for any specific election.
In-Person or by Mail
You may also register to vote in person at any of the following locations:
Voter registration forms may also be downloaded from the Colorado Secretary of State’s website. Applicants can mail, scan, or deliver the voter registration forms to their County Clerk and Recorder office (find yours here), or to the Colorado Department of State, Elections Division, at:
Colorado Department of State
1700 Broadway, Suite 200
Denver, CO 80290
To be eligible to register in Colorado you MUST:
Identification Required for Registration
Applicant must provide a Colorado driver’s license, a Colorado ID card, social security number, or one of the approved forms of identification below. You may provide the last four digits of your Social Security number only if you don’t have either a Colorado driver’s license or ID card. However, if you do have either a Colorado driver’s license or ID card, you must use one of those forms of identification to complete your application; you cannot use your Social Security number. If you do not have any of these forms of identification and do not have a social security number, you may also provide one of the following approved forms of identification, so long as if it shows your address, that address is in Colorado:
If an applicant does not provide this identification information at the time of application, he/she will be required to a copy of it when mailing in his/her ballot.
You can vote early in person 10 days before a primary election and fifteen days before a general election at your early vote polling place. Call your county clerk to find your early voting polling place.
If You Want to Vote Early
Mail-in ballots will begin being mailed out 22 days before the election, at which point ballots will be mailed within 72 hours after the voter’s request for a mail-in ballot is received. Any eligible voter who receives a mail ballot may cast it at a Voter Service and Polling Center prior to Election Day.
If You Want to Vote Absentee
Any eligible voter may elect to vote by mail-in (or absentee) ballot either permanently or for just the current year by filling out and returning the Application for Mail-In Voting.
If you requested an absentee ballot but have not yet received it, or if you spoiled it, you may request that the designated election official at your polling place issue you a replacement mail-in ballot. You can check the status of your absentee ballot online. If you still have questions, contact your County Clerk.
Your ballot must be returned to your County Clerk’s office by 7:00p.m.on the day of the election. Be sure to carefully follow the instructions on your absentee ballot. You may return the ballot personally or by mail. Please note your ballot must be received, not postmarked, by 7:00p.m. on the day of the election.
Voting in Person after Requesting an Absentee Ballot
If you requested an absentee ballot, you don't have to surrender your mail ballot. You can just vote in person with an ID at your polling place. Polling centers open 15 days before the election.
Procedures for Voting by Absentee Ballot
If you wish to have your mail-in ballot mailed to you, the application must be received by your County Clerk's Office by close of business on the Tuesday that is seven days before the election.
You can also obtain a mail-in ballot in person at the County Clerk's Office until close of business on the Friday before the election.
You can submit your absentee/mail-in ballot either by mail or by dropping it off at a designated site. Contact your County Clerk’s Office for drop-off locations.
Absentee ballots must be received by the County Clerk no later than 7:00 p.m. on Election Day.
Identification Requirements to Register to Vote
Applicant must provide a Colorado driver’s license, a Colorado ID card, a social security number, or one of the forms of identification listed below. You may provide the last four digits of your Social Security number only if you don’t have either a Colorado driver’s license or ID card. However, if you do have either a Colorado driver’s license or ID card, you must use one of those forms of identification to complete your application; you cannot use your Social Security number. If you do not have any of these forms of identification and do not have a social security number, you may also provide one of the following acceptable forms of ID, so long as if it shows your address, that address is in Colorado:
Identification Requirements to Cast a Ballot
All voters who vote in-person will be required to show one of the approved forms of identification listed below. Voters who are casting mail-in ballots for the first time will be required to provide a photocopy of their identification.
A Social Security number is not sufficient voter ID.
Also, if any form of ID listed above shows your address, that address must be in Colorado to be valid.
An eligible elector who is unable to produce identification may cast a provisional ballot.
The designated election official shall attempt to verify that an elector who cast a provisional ballot is eligible to vote.
You will need to fill out an application to cast a provisional ballot. The provisional ballot affidavit includes a voter registration form. Note that if you are not registered to vote, but are eligible to register to vote, then as long as the affidavit contains all the needed information you will be registered to vote in the next election, regardless of whether the provisional ballot is counted this time.
If you have moved and are already registered to vote in Colorado, you can update your registration address online up until election day, or by printing and mailing this form to your County Clerk, whose address you can find here. You may also fax or scan and email the form to the County Clerk’s office, or else deliver it in person. Finally, you can update or change your address in-person at a voter service and polling center prior to or on Election Day.
If you change you address fewer than 8 days before the election, you will not recieve a mail ballot. You need to go to a county clerk or voter service center to pick it up.
Visit the Secretary of State’s Uniformed and Overseas Electors website for resources and information on voting as a member of the Armed Services or as a civilian abroad. Answers to frequently-asked questions can be found here.
Military and overseas citizens can use the Federal Post Card Application (FPCA), also known as Standard Form 76, to register to vote and to request an absentee ballot. Visit the Federal Voting Assistance Program's (FVAP) Colorado-specific FPCA page.
Military and overseas citizens can send and receive voting materials by fax and email. If you wish to use the fax or email options, you must indicate this on your FPCA. Instructions for doing so are found on the FVAP's Colorado-specific FPCA page.
Military and overseas citizens can use the Federal Write-In Absentee Ballot (FWAB) if they are concerned with receiving their printed ballot and returning it by the 7:00 p.m., Election Day deadline. The FWAB is a blank ballot on which voters write-in their choices. The FWAB may also be used to register to vote and to apply for the absentee ballot, all in one step. For specific instructions, visit the Federal Voting Assistance Program's Colorado page to download the form.
Once a person who was convicted of a felony or offense serves his/her entire sentence—including parole—he/she may register to vote. You can vote even if you have not paid all of your restitution. A person becomes eligible to register to vote on the day he or she is released from parole. You will not receive any official letter telling you that you are eligible to vote.
If you were registered to vote before your felony imprisonment, your registration will have been cancelled, and you will need to re-register to vote. You may register to vote online if you have a Colorado driver’s license or a Colorado photo ID, or at any of the following locations:
Voter registration forms may also be downloaded from the Secretary of State’s website. Applicants can mail or deliver the voter registration forms to their County Clerk and Recorder office (find yours here), or to the Colorado Department of State, Elections Division, at:
Colorado Department of State
1700 Broadway, Suite 200
Denver, CO 80290
If you submit a voter registration application, but your name still appears in the database as a person under supervision, you will receive a notice from county elections officials that you are not eligible to vote. You will have an opportunity to respond that you completed your sentence and that the cancellation was in error. You may be asked for proof that you completed your parole, such as your parole discharge documentation.
Persons serving jail sentences for misdemeanors may register to vote and vote in any election. You will need to register before the deadline, and also need to update your address information by contacting the County Clerk in your county of residence (find your County Clerk here). Pretrial detainees (those who are in jail awaiting trial) may also register to vote and vote in any election. Persons who are out on bond but facing pending criminal charges may also register to vote and may vote in any election, up until they are convicted and either imprisoned or put on parole for a felony. Persons on probation may register to vote and vote in any election (although persons on parole cannot).
For more information for voters with mental disabilities, visit The Bazelon Center for Mental Health Law and National Disability Rights Network’s document: “Voting Rights Guide for People with Mental Disabilities.”
For more information for student voters, visit the Colorado Student Voting Guide from the Brennan Center for Justice.
Information provided by Lawyers' Committee for Civil Rights
Conducting a Voter Registration Drive in your state? Here are some resources.