Colorado Elections

Colorado has a unique voter-centric model for elections. For elections conducted by the County Clerk (Primaries, General, Presidential or odd-year coordinated November election), every active voter will receive their ballot by mail. Voter centers become available early and through election day for full voter services: registration, ballot replacement, accessible voting, etc. So the steps to voter are easy:

1. Register or update your voter registration.

2. Review your ballot.

3. Mail or drop off your ballot.

Need help? Go to for online registration information.

2020 Presidential Primary Election

Saturday Jan. 18th

Military and absentee voter ballots mailed

Monday Feb. 3rd

Last day for affiliated voters to change or withdraw their affiliation if they wish to vote in a different party’s primary. Register or update at

Monday Feb. 10th

Ballots mailings begin- view your sample ballot at

Monday Feb. 24th

Vote centers open- look for your county locations at

Tuesday March 3rd- ELECTION DAY- Last chance to vote

Ballots must be dropped off no later than 7:00 pm. Vote centers open 7 a.m. to 7 p.m. Find your county locations on county clerk websites or at

#DYK that 17 year-old voters that will be 18 years old by November 3, 2020 may register and are eligible to vote in the Colorado primaries? This law was passed by the Colorado General Assembly in 2019.

Need more info?

Contact your county clerk or Executive Director Pam Anderson at