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June 2020 State Primary Election

Colorado’s June 30 State Primary will include party primary races for U.S. Senate, House of Representatives and state legislative seats. Denver voters have the opportunity to nominate candidates to compete in the November General Election for those seats. Some important things to know:

Voters registered as Democrats, Republicans, Libertarians or Unaffiliated can participate. There are currently no other minor party contests for the state primary.

Unaffiliated voters without a preference will receive both major party ballots but may only return one. If both ballots are cast, neither will count.

17 year-olds may be eligible to participate. Voters who are 18 years of age by the November 3, 2020 General Election can vote in the state primary.

Voters must change or withdraw their affiliation by June 1 if they wish to vote in a different party's primary election. 


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COVID-19 impact on elections

The Denver Elections Division is closely monitoring potential impacts to the June 30 State Primary Election due to COVID-19. This page will be updated as information becomes available, and any current information is subject to change.

Visit our Voting and Elections During COVID-19 web page for details on how we're taking precautions to ensure the safety of our staff and voters at this time.


   How to Vote

Register to vote: Register to vote and make sure your address is up-to-date on GoVoteColorado before June 22 to receive a ballot by mail. 

Check your party affiliation: The deadline to change your party affiliation for the State Primary is Monday, June 1. Visit GoVoteColorado to make sure your party affiliation is current.

Vote by mail: Ballots will be mailed to all active voters beginning the week of June 8. 

Vote in person: In-person voting may be impacted by public health orders regarding COVID-19. This page will be updated with further information.

Ballots must be received by 7 p.m. on June 30, 2020.

   Where to Vote or Drop Off Your Ballot

Vote Center operations may be impacted by public health orders regarding COVID-19. This page will be updated with further information.


   Questions? Connect With Us

Call or text: 303-653-9668






   Research Your Ballot

    Important Dates

  • June 1: Last day to change or withdraw affiliation
  • June 8: 22-day Colorado residency deadline
  • June 8: Ballots begin mailing to active voters
  • June 8: Drop-boxes open across the city
  • June 15: Elections office opens as Vote Center 
  • June 22: Vote Centers open across the city 
  • June 22: Last day to update your registration to receive a ballot by mail
  • June 22: Last day to return your ballot by mail. After this day, return only to drop-boxes
  • June 29: Additional Vote Centers open across the city 
  • June 30: Last day to vote
    • Ballots must be received by 7 p.m.

    Track Your Ballot

BallotTRACE is the Denver Elections Division’s powerful ballot tracking and communications tool—and now it’s even easier to use. Get notifications via text or email about the status of your ballot.


Location & Hours
200 W. 14th Ave #100
Denver, CO 80204
Hours: 8 a.m. - 5 p.m.


Denver Elections Division

Call: 303-653-9668
Text: 56003
Register to Vote | Track Your Ballot



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