Colorado primary election
June 30, 2026
- Election type: primary
- Region: Colorado
- Description: Colorado statewide primary election
Visit Ballotpedia.org(Opens in a new window) to learn what you're voting on this election.
Key deadlines in Colorado
Voter registration deadlines
- Online: 8 days before Election Day
- By mail: Received by 8 days before Election Day
- In person: Election Day (via same-day registration)
Absentee ballot request deadlines
- By mail: N/A
- In person: N/A
Absentee ballot return deadlines
- By mail: Received by Election Day
- In person: Received by Election Day
Voting dates
- Early voting starts: 15 days before Election Day
- Early voting ends: 1 day before Election Day
- Election Day: June 30, 2026