Colorado Election Dates and Deadlines

Welcome to the Colorado Election Dates and Deadlines listing from U.S. Vote Foundation.

Here you can find out when Colorado elections will be held at the local, state and federal election level. There are many different deadlines associated with Colorado elections, such as voter registration deadlines, absentee ballot request and ballot return deadlines, date ranges for early voting, and in-person voting options. No matter the type of election, or whether you are voting at home or voting from abroad, this service will provide you with comprehensive election dates and deadlines for your voting state of Colorado.

Colorado Federal and State Elections

Tue Mar 5, 2024 - Colorado Presidential Primary

Voter Registration Deadline

  • At Registration Drive by
    Mon Feb 12, 2024
  • In the Mail by
    Mon Feb 26, 2024
  • Online by
    Mon Feb 26, 2024
  • Election Day Registration & Voting
    Tue Mar 5, 2024
  • In-Person, Received by
    Tue Mar 5, 2024

Absentee Ballot Request Deadline

Not Necessary: All Elections in this State are Vote-by-Mail

Every voter receives a mail ballot. The ballot will be sent to the mailing address you provided for your voter registration file.

Absentee Ballot Return Deadline

Received by
Tue Mar 5, 2024 7:00PM MST

Early Voting Available

Early Voting
From Mon Feb 26, 2024 to Mon Mar 4, 2024

Feb 12, 2024: Last day for voters who are affiliated with a political party to change or withdraw their affiliation if they wish to vote in a different party's primary election for the March 5th Presidential Primary Election.

Tue Nov 5, 2024 - Colorado General Election

Voter Registration Deadline

  • At Registration Drive by
    Mon Oct 14, 2024
  • In the Mail by
    Mon Oct 28, 2024
  • Online by
    Mon Oct 28, 2024
  • Election Day Registration & Voting
    Tue Nov 5, 2024
  • In-Person, Received by
    Tue Nov 5, 2024

Absentee Ballot Request Deadline

Not Necessary: All Elections in this State are Vote-by-Mail

Every voter receives a mail ballot. The ballot will be sent to the mailing address you provided for your voter registration file.

Absentee Ballot Return Deadline

Received by
Tue Nov 5, 2024 7:00PM

Early Voting Available

Early Voting
From Mon Oct 21, 2024 to Mon Nov 4, 2024

Colorado Local Elections

There are currently no upcoming local elections identified for this state.

Colorado Federal and State Elections

Tue Mar 5, 2024 - Colorado Presidential Primary

Voter Registration Deadline

Submitted by
Tue Mar 5, 2024

Absentee Ballot Request Deadline

No Deadline

Absentee Ballot Return Deadline

  • Email, Online or Fax by
    Tue Mar 5, 2024 7:00PM MST
  • Postmarked On or Before Election Day and Received by
    Wed Mar 13, 2024 7:00PM MDT

Tue Nov 5, 2024 - Colorado General Election

Voter Registration Deadline

Received by
Tue Nov 5, 2024

Absentee Ballot Request Deadline

  • Request to Receive Blank Ballot by Mail by
    Tue Oct 29, 2024
  • Request for Email, Online or Fax Ballot by
    Tue Nov 5, 2024

Absentee Ballot Return Deadline

  • Email, Online or Fax by
    Tue Nov 5, 2024 7:00PM
  • Postmarked On or Before Election Day and Received by
    Wed Nov 13, 2024 7:00PM

Colorado Local Elections

There are currently no upcoming local elections identified for this state.

Select a State to View Election Dates and Deadlines

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