How to vote for Bernie Sanders in Colorado

Colorado has semi-closed primaries

Coloradans must register as democrat or undeclared to vote for Bernie!

Register By

February 24 (2020)

Same-Day Registration Colorado has Same-Day Registration on March 3 Must be unaffiliated or new

Not a democrat? Colorado has a special deadline for changing affiliation: Mon, February 3

Primary On

March 3 (2020)

Colorado Primary: Tue, March 3

It's still very early in the election season, and dates often change. Please sign up below for Voter Alerts in Colorado and we'll send you an email if the dates change!

Coloradans must register as democrat or unaffiliated to vote for Bernie!

Colorado Voter Information

Get Registered

Colorado has semi-closed primaries — Coloradans must register as democrat or undeclared to vote for Bernie!

Register as a democrat or undeclared now!

In Colorado, you must be affiliated as a democrat by Mon, February 3, which is before the registration deadline!

Colorado has Same-Day Registration which allows you to register to vote at the primaries on Tue, March 3 Must be unaffiliated or new

Not sure if you are registered, or what you're registered as? Check your current registration status online.

Go Vote!

Vote in Colorado on 3/3/2020 from 7:00AM – 7:00PM,
Find your polling place here:

You can still register in person up until the day of the election.

Check out the official Colorado 2020 Elections Calendar here:

Id Requirement

All voters who vote in-person must provide identification. While there are many forms of acceptable identification, most voters find it convenient to bring their Colorado driver’s license or Colorado ID. A Colorado ID is available at no cost to those who are eligible. For more information on obtaining a Colorado ID, please contact the Colorado Department of Revenue.

More info here:

Voter Workplace Protection

Paid time off, up to two hours. Not required if employee has three non-work hours available while polls are open.

Early Voting

Vote Early in Colorado! Coloradans can vote in-person before election day! If you'll be out of town on March 3 or simply find it more convenient, vote early!

Early voting in Colorado begins February 10 and ends on March 3.

Every voter receives a mail ballot. Ballots begin mailing on February 10, 2020. The ballot will be sent to the mailing address you provided for your voter registration file. To check the address on file, or to make any changes to your voter registration visit
Every valid mail ballot is counted. Be sure to sign the envelope when you return your mail ballot. Your county clerk must receive your ballot no later than 7:00 PM on Election Day. If you are not sure if your ballot will arrive in time, drop it off in person. Contact your county clerk and recorder for drop-off and drop-box locations.

Only 17?

You may still vote in Colorado's primaries if you will be 18 years old by November 3, 2020.

College Students

If you are a college student not living in your home state, you can vote for Bernie in either your home state or in the state in which you are attending school!

Military/Overseas Voters

If you are a Military Voter or a US Citizen living abroad, you are able to request a ballot here to vote for Bernie.

More Information

If you have any questions about voting in Colorado you may contact your state official elections office or Democratic party.

Find local Bernie supporters and get help from /r/Colorado4Sanders

Will you help Bernie win?

"I've said it since day one: I can't do it alone." - Bernie Sanders

This grassroots campaign depends on grassroots supporters like you! Sign up as a volunteer with the official campaign to find opportunities to help the campaign directly.

Bernie wants 1,000,000 volunteers, and it's up to us to make that happen.

Volunteer for Bernie

Bernie continues to fund his campaign from small donations from people like us. Show your support by donating to the campaign!

Donate to the Bernie Sanders Campaign

Bernie needs you in Colorado!

For more questions, comments, and concerns check out the Colorado Voter Guide here:

Get your absentee ballot here:

If you need help call the Official Colorado Election Voter Hotline at:
866-OUR-VOTE | 866-687-8683