| Dem Presidential Primary/Caucus Day: | March 5, 2024 |
|---|---|
| Dem Presidential Primary/Caucus Ballots Mailed: | February 2, 2024 |
| GOP Presidential Primary/Caucus Day: | March 5, 2024 |
| GOP Presidential Primary/Caucus Ballots Mailed: | February 2, 2024 |
| Primary Election Day: | June 25, 2024 |
| Primary Ballots Mailed: | June 7, 2024 |
| Primary In-Person Early Voting Opens: | June 17, 2024 |
| General Election Day: | November 5, 2024 |
| General Election Ballots Mailed: | October 4, 2024 |
| General Election In-Person Early Voting Opens: | October 21, 2024 |
| Additional Voting Information: | Colorado Elections Information Website |
This state has all mail voting.