Register or check your record
Register or update online by October 26 to receive a ballot by mail. After that date, register and vote in person at a Voter Service and Polling Center in your home county through Election Day.
Official voter resources
Make your Colorado voting plan
Colorado automatically mails a ballot to every active registered voter. Check your record, ballot status, voter center, and drop box through official state services, then make sure the county clerk receives your ballot by 7 p.m. on Election Day.
First steps
Start with these three actions
Find your exact ballot and voting options
Go Vote Colorado shows your sample ballot, registration, ballot status, voter centers, drop boxes, and county clerk information.
Return and track your ballot
Sign the return envelope and return the ballot early by mail, at a voter center, or at a county drop box. The county clerk must receive it by 7 p.m. on November 3. Postmarks do not count.
October 2mailing may begin
October 26mail-ballot registration cutoff
November 3General Election Day
7 a.m. to 7 p.m.Election Day voter center hours
Election timeline
Regular mail-ballot mailing may begin
County clerks may begin mailing general election ballot packets to active eligible voters.
Initial mail-ballot mailing deadline
County clerks must finish sending the initial mail-ballot packets to active eligible voters.
Required drop boxes begin
The minimum required county ballot drop boxes must begin accepting ballots and remain available through Election Day.
Required voter centers begin
The minimum required Voter Service and Polling Centers begin operating. County schedules and additional locations vary.
Registration deadline to receive a ballot by mail
Register or update online, by mail, through a voter registration agency, or at a driver's license office by this date to receive a ballot by mail.
Register and vote in person
Eligible voters who missed the mail-ballot cutoff can register or update at a Voter Service and Polling Center in their home county and vote there.
General Election Day and ballot receipt deadline
Voter centers are open from 7 a.m. to 7 p.m. Anyone in line by 7 p.m. may finish voting. The county clerk must receive every nonmilitary and nonoverseas ballot by 7 p.m. Postmarks do not count.
Ballot cure deadline
A voter correcting a missing or discrepant signature or missing identification must complete the cure process by this deadline.
Check the current rule: To register, you must be a U.S. citizen, be 18 by Election Day, and have lived in Colorado for at least 22 days. People on probation, parole, awaiting trial, or serving a misdemeanor sentence may vote. A voter currently incarcerated for a felony sentence may not vote, but may register after release. Use a voter center in your home county to receive the full ballot tied to your residence. Sign the mail-ballot return envelope. First-time mail voters may need to include acceptable identification. Check county locations and hours before traveling.
14 certified statewide measures
Colorado's official Blue Book explains every statewide amendment and proposition. Amendments 81 through 86 require 55 percent approval. Amendment 87 and Propositions NN and 132 through 137 pass with a majority. Front Range Passenger Rail District Ballot Issue 7A is local to parts of 13 counties and is not counted here.
- Amendment 81Law Enforcement Communication with Federal Immigration Authorities. Citizen initiative. Requires 55 percent.
- Amendment 82Constitutional Right to Purchase and Sell Natural Gas. Citizen initiative. Requires 55 percent.
- Amendment 83Constitutional Right to Hunt and Fish. Citizen initiative. Requires 55 percent.
- Amendment 84Mail Ballot Voter Identification. Citizen initiative. Requires 55 percent.
- Amendment 85Plain Language Ballot Titles. Citizen initiative. Requires 55 percent.
- Amendment 86Requirements for Off-Cycle Congressional Redistricting. Citizen initiative. Requires 55 percent.
- Amendment 87Graduated Income Tax. Citizen initiative. Passes with a majority.
- Proposition NNKeep and Spend Money for Education and Other Purposes. Legislative referral. Passes with a majority.
- Proposition 132Increase Penalties for Fentanyl Crimes. Citizen initiative. Passes with a majority.
- Proposition 133Penalties for Human Trafficking of a Minor. Citizen initiative. Passes with a majority.
- Proposition 134Male and Female Participation in School and Collegiate Sports. Citizen initiative. Passes with a majority.
- Proposition 135Prohibit Surgery on Minors in Response to Perception of Sex or Gender. Citizen initiative. Passes with a majority.
- Proposition 136Income Tax Rate Limit. Citizen initiative. Passes with a majority.
- Proposition 137Direct Sporting Goods Sales Tax Revenue for Conservation. Citizen initiative. Passes with a majority.
7 statewide appellate retention questions
Every Colorado voter will see Supreme Court Justice William W. Hood, III and Court of Appeals Judges Rebecca Rankin Freyre, Elizabeth L. Harris, Katharine E. Lum, Pax Moultrie, Karl L. Schock, and Grant Sullivan. The State Commission rated each as meeting performance standards. District and county retention questions vary by address.
Read the official judicial evaluationsRead the Blue Book and check your sample ballot
The state Blue Book covers all 14 statewide measures and judicial evaluations. Go Vote Colorado shows the exact contests and local questions tied to your residence.
Open the official 2026 Blue BookOfficial voter links
2026 Election CalendarOfficial statewide schedule, updated July 31, 2026.Go Vote ColoradoRegister, check your record, view your sample ballot, and find county voting options.Mail-in Ballot FAQsOfficial mailing, return, signature, and replacement ballot guidance.Acceptable Forms of IdentificationOfficial identification list and rules for in-person and first-time mail voters.Know Your Voting RightsOfficial eligibility, registration, criminal-record, and voting-rights booklet.County election officesOfficial contact list for locations, hours, and local ballot questions.BallotTraxOfficial Colorado ballot tracking service.Accessible ballot informationOfficial accessible ballot and voting service.
Dates checked September 30, 2026. Confirm them at the linked official source.