Voting ends Tuesday - Voting Centers open today until 1 p.m.

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Boulder County Elections Division banner

Tuesday is Election Day – Last day to vote!

Voter Service Centers open today until 1 p.m. (and open Mon & Tues) 

Voter Service and Polling Centers are open today, Saturday, June 25 from 9 a.m. – 1 p.m.; Monday, June 27 from 8 a.m. – 6 p.m. and Tuesday, June 28, Primary Election Day from 7 a.m. – 7 p.m.


Ballot Drop Box

Returning your Mail Ballot

If you have not yet mailed your ballot, we now recommend dropping your ballot off as all ballots are due by 7 p.m. on Election Day. Postmarks do not count.

 For your convenience, we have TEN 24-hour mail ballot drop off locations and 

THREE Drive-by Drop-off locations (open today, Monday, and Tuesday)


Please visit our Voter Service Center and Ballot Drop-off Location page for a full list of all your ballot drop-off locations.

Bike dropping off ballot

Photo of Envelope Sorting Machine

Love Elections? Come to our open house and see how we process ballots!

Ballot Processing Facilities Tour
1750 33rd Street in Boulder

Monday, June 27, 5:30 p.m. – 7 p.m.


Tours take place approximately every 30 minutes. RSVP requested. Email:

Visit a Voter Service and Polling Center to:

✭ Drop off a ballot 

✭ Cast a ballot in person

✭ Request a replacement ballot

✭ Register to vote or update voter registration information

✭ Drop off a ballot 

✭ Vote using equipment and facilities for persons with disabilities

Voter Service Center Sign

Frequently Asked Questions:


If I don't vote in this primary election, will I still get a ballot for the General Election?  


Yes!  But, please make sure to keep your voter registration up-to-date with your correct mailing address. 


Why are there no presidential candidates on the ballot?


Presidential candidates in Colorado are selected through a party caucus system. Democratic and Republican caucuses were held on March 1, 2016. Contact your local party for more information. 

Can I check to see if you got my ballot?


Yes. Log-in or sign-up for Ballot Track to see if we received your mail ballot.

Why am I getting this email?

You are receiving this correspondence because you provided your email to the Colorado Secretary of State when you registered to vote. The Boulder County Elections Division will not be sending emails on a regular basis. We intend to only send important voting information during the election period.