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 Nov 7, 2023 - Colorado State Constitution Amendment Election

Voter Registration Deadline

  • At Registration Drive by
    Mon Oct 16, 2023
  • In the Mail by
    Mon Oct 30, 2023
  • Online by
    Mon Oct 30, 2023
  • Election Day Registration & Voting
    Tue Nov 7, 2023
  • In-Person, Received by
    Tue Nov 7, 2023 7:00PM MST

Absentee Ballot Request Deadline

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

Absentee Ballot Return Deadline

  • Email, Online or Fax by
    Tue Nov 7, 2023 7:00PM MST
  • In-Person, Received by
    Tue Nov 7, 2023 7:00PM MST
  • Postmarked by
    Election Day and Received by Wed Nov 15, 2023 7:00PM MST

Early Voting Available

  • Early Voting
    From Mon Oct 23, 2023 to Mon Nov 6, 2023
  • In-person Absentee Voting
    From Mon Oct 30, 2023 to Mon Nov 6, 2023
Voters can contact their local election office (https://www.usvotefoundation.org/election-offices) to preview the wording of the two proposed state constitutional amendments that will be on the ballot.

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

Absentee Ballot Return Deadline

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

Early Voting Available

  • In-person Absentee Voting
    From Mon Feb 26, 2024 to Mon Mar 4, 2024
  • Early Voting
    From Mon Feb 19, 2024 to Mon Mar 4, 2024

Colorado Local Elections

Tue Nov 7, 2023 - Colorado Coordinated Elections

Voter Registration Deadline

  • At Registration Drive by
    Mon Oct 16, 2023
  • In the Mail by
    Mon Oct 30, 2023
  • Online by
    Mon Oct 30, 2023
  • Election Day Registration & Voting
    Tue Nov 7, 2023
  • In-Person, Received by
    Tue Nov 7, 2023 7:00PM MST

Absentee Ballot Request Deadline

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

Absentee Ballot Return Deadline

  • Email, Online or Fax by
    Tue Nov 7, 2023 7:00PM MST
  • In-Person, Received by
    Tue Nov 7, 2023 7:00PM MST
  • Postmarked by
    Election Day and Received by Wed Nov 15, 2023 7:00PM MST

Early Voting Available

  • In-person Absentee Voting
    From Mon Oct 30, 2023 to Mon Nov 6, 2023
  • Early Voting
    From Mon Oct 23, 2023 to Mon Nov 6, 2023

Tue Nov 7, 2023 - City of Aurora

Voter Registration Deadline

  • At Registration Drive by
    Mon Oct 16, 2023
  • In the Mail by
    Mon Oct 30, 2023
  • Online by
    Mon Oct 30, 2023
  • Election Day Registration & Voting
    Tue Nov 7, 2023
  • In-Person, Received by
    Tue Nov 7, 2023 7:00PM MST

Absentee Ballot Request Deadline

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

Absentee Ballot Return Deadline

  • Email, Online or Fax by
    Tue Nov 7, 2023 7:00PM MST
  • In-Person, Received by
    Tue Nov 7, 2023 7:00PM MST
  • Postmarked by
    Election Day and Received by Wed Nov 15, 2023 7:00PM MST

Early Voting Available

  • Early Voting
    From Mon Oct 23, 2023 to Mon Nov 6, 2023
  • In-person Absentee Voting
    From Mon Oct 30, 2023 to Mon Nov 6, 2023
The City of Aurora participates in Coordinated Elections with Arapahoe County, Adams County, and Douglas County.

Tue Nov 7, 2023 - City of Fort Collins

Voter Registration Deadline

  • At Registration Drive by
    Mon Oct 16, 2023
  • In the Mail by
    Mon Oct 30, 2023
  • Online by
    Mon Oct 30, 2023
  • Election Day Registration & Voting
    Tue Nov 7, 2023
  • In-Person, Received by
    Tue Nov 7, 2023 7:00PM MST

Absentee Ballot Request Deadline

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

Absentee Ballot Return Deadline

  • Email, Online or Fax by
    Tue Nov 7, 2023 7:00PM MST
  • In-Person, Received by
    Tue Nov 7, 2023 7:00PM MST
  • Postmarked by
    Election Day and Received by Wed Nov 15, 2023 7:00PM MST

Early Voting Available

  • Early Voting
    From Mon Oct 23, 2023 to Mon Nov 6, 2023
  • In-person Absentee Voting
    From Mon Oct 30, 2023 to Mon Nov 6, 2023

Colorado Federal and State Elections

Tue Nov 7, 2023 - Colorado State Constitution Amendment Election

Voter Registration Deadline

Received by
Tue Nov 7, 2023

Absentee Ballot Request Deadline

Request to Receive Blank Ballot by Mail by
Tue Oct 31, 2023

Absentee Ballot Return Deadline

  • Email, Online or Fax by
    Tue Nov 7, 2023 7:00PM MST
  • Postmarked by
    Election Day and Received by Wed Nov 15, 2023

Tue Mar 5, 2024 - Colorado Presidential Primary

Voter Registration Deadline

Received by
Tue Mar 5, 2024

Absentee Ballot Request Deadline

Received by
Tue Feb 27, 2024

Absentee Ballot Return Deadline

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

Colorado Local Elections

Tue Nov 7, 2023 - Colorado Coordinated Elections

Voter Registration Deadline

Received by
Tue Nov 7, 2023

Absentee Ballot Request Deadline

Request to Receive Blank Ballot by Mail by
Tue Oct 31, 2023

Absentee Ballot Return Deadline

  • Email, Online or Fax by
    Tue Nov 7, 2023 7:00PM MST
  • Postmarked by
    Election Day and Received by Wed Nov 15, 2023

Tue Nov 7, 2023 - City of Aurora

Voter Registration Deadline

Received by
Tue Nov 7, 2023

Absentee Ballot Request Deadline

Request to Receive Blank Ballot by Mail by
Tue Oct 31, 2023

Absentee Ballot Return Deadline

  • Email, Online or Fax by
    Tue Nov 7, 2023 7:00PM MST
  • Postmarked by
    Election Day and Received by Wed Nov 15, 2023 7:00PM MST

Tue Nov 7, 2023 - City of Fort Collins

Voter Registration Deadline

Received by
Tue Nov 7, 2023

Absentee Ballot Request Deadline

Request to Receive Blank Ballot by Mail by
Tue Oct 31, 2023

Absentee Ballot Return Deadline

  • Email, Online or Fax by
    Tue Nov 7, 2023 7:00PM MST
  • Postmarked by
    Election Day and Received by Wed Nov 15, 2023 7:00PM MST

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