This is the last day CO residents can register and still receive a mail ballot
 

Colorado residents who wish to receive a mail ballot for the Nov. 2020 election need to register or update their registration no later than Oct. 26.

Colorado voter registration and updates can be completed through the Secretary of State's website or through ASCSU.

Out-of-state residents and students can visit Rock the Vote to learn more about registering and voting in their home states. If you're in need of an absentee ballot, you can visit the National Association of Secretaries of State site to leran more about absentee and early voting.