All states

Colorado registration starts closing Mon Oct 26.

Starts closing Mon Oct 26

OnlineMon Oct 26 to still be mailed a ballotBy mailReceived by Mon Oct 26In personSame day at voter service centers through Tue Nov 3

Source: coloradosos.gov · checked Sep 21, 2026

Check my registrationRegister on Vote.org

A student?

Register at school or at home, not both.

The form wants the building you sleep in, not your campus mailbox.

A parent, aunt, uncle?

Students ignore ads. They ignore you too, but less.

Get the text to send

On the move?

Your deadline belongs to your home state, not the parking lot you're texting from.

Voting by mail from elsewhere? Your absentee request deadline matters more. Find it at Vote.org, or FVAP.gov if you're overseas.