- May 8: Preferred date by which unaffiliated voters who would like only one ballot sent to them, select their ballot preference (see below)
- May 29:
- If registered with a political party, last day to change party change party affiliation if you want to switch parties
- If registered as an unaffiliated (sometimes referred to as “independent” voter), last day to update your registration with a party preference IF you know which party’s primary you want to vote in. Otherwise, you will receive both major party ballots in the mail (Democratic and Republican) BUT may only vote and return one.
- June 4: Ballots mailed to registered voters this week
- June 4: 22-day Colorado residency deadline
- June 4: In-person voting available at the Boulder office of the Clerk & Recorder
- June 18: Last day to request a replacement mail ballot or register to vote and be sent a ballot in the mail
- June 18: Voter Service Centers open
- June 26: Election Day, ballots must be received by 7pm
What’s new in 2018?
- Unaffiliated voters are eligible to participate in the Primary Election; Active voters will automatically receive their ballot(s) in the mail
- Unaffiliated voters who have not indicated a party ballot preference will receive two ballots, one for Democratic Party races and one for Republican Party races
- Unaffiliated voters without a party preference who receive both ballots in the mail should select, vote, and return only one ballot
For more information, see Unaffiliated Voters FAQ.
- Ballot content for the state and local races for both the Democratic and Republican ballots will be posted on or after May 1.