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Colorado Secretary of State
10/02/2026 | Press release | Archived content
October 2 - County Clerks May Begin Mailing Ballots for the 2026 General Election
Denver, October 2, 2026 - Beginning today, Colorado County Clerks may begin mailing ballots to active voters for the November 3, 2026 General Election.
"Ballots will be sent to voters earlier this election, giving voters more time to research their candidates and ballot measures and make a plan to vote by November 3, " said Secretary of State Jena Griswold. "As ballots hit mailboxes across the state in the coming days, I encourage every eligible voter to make their voices heard in the upcoming November General Election."
County Clerks must mail ballots to active voters by Friday, October 9 for the General Election.
Eligible Coloradans can register to vote and update their voter registration at GoVoteColorado.gov through October 26 in order to receive a ballot in the mail. After October 26, Coloradans can still register and vote in-person at a voting center through 7:00 PM on Election Day.
This year, 452 drop boxes will be available for voters by October 12 and 384 voter centers will be available for voters by October 19. Voters can look up their locations, opening date, and hours at GoVoteColorado.gov.
Using Trusted Sources
Coloradans should always use trusted sources when searching for information on elections. Information from the Colorado Secretary of State's Office is distributed via ColoradoSOS.gov or GoVoteColorado.gov.
Voters can visit GoVoteColorado.gov and select "Contact my County Clerk" to ensure they are only visiting legitimate Colorado Clerk websites.
Colorado voters can visit GoVoteColorado.gov to:
Register to vote or update their voter registration
Sign up to track their ballot using BallotTrax
Find their local County Clerk
Find their closest drop box or voting center
Learn about Colorado's secure election processes
Find accurate election information
Important upcoming dates for the 2026 General Election in Colorado
October 2 - First day County Clerks may send mail ballots to active voters for the 2026 General Election.
October 9 - Deadline for initial mail ballots to be sent to active voters for the 2026 General Election.
October 12 - The minimum number of required drop boxes must be open.
October 19 - The minimum number of required voter centers must be open.
October 26 - Deadline to register to vote and still be mailed a ballot.
After this date, register and then vote in person.
October 26 - Last suggested day to return a ballot by mail.
October 27 - Voters should return their ballot to a voting center or drop box, or vote in-person up to Election Day.
November 3 - Election Day. Voters must submit their ballot or be in line to vote by 7:00 PM for their ballot to be counted.
Ballots cast by military and overseas voters must be sent no later than 7:00 PM on Election Day and received close of business on the 8th day after the election.
November 12 (following Veterans Day Holiday) -
Deadline for ballots cast by military and overseas voters to be received by County Clerks.
Deadline for voters to cure a signature discrepancy or missing signature (if notified by County Clerk).
Colorado Secretary of State published this content on October 02, 2026, and is solely responsible for the information contained herein. Distributed via Public Technologies (PUBT), unedited and unaltered, on October 05, 2026 at 05:25 UTC. If you believe the information included in the content is inaccurate or outdated and requires editing or removal, please contact us at [email protected]