To be eligible to vote, you must be:

• A U.S. Citizen
• 16 years of age, but you must be at least 18 years old to vote in an other election
• A Colorado resident for at least 22 days before an election
• Not serving a sentence for a felony conviction

Incarcerated Voters & Returning Citizens: 

In Colorado, you only lose your right to vote if you are currently incarcerated for a felony conviction. If you lost your voting rights because of a conviction, you could register to vote immediately after release. Your voting rights are not restricted by pretrial detention, misdemeanors, probation, or parole. 

Voters without traditional residence: 

When registering to vote, providing a residential address is unnecessary if a voter lacks a fixed permanent address. For instance, if a voter resides permanently in an RV, they may utilize a campground as their "home base" for the purpose of voter registration. Similarly, individuals who are unable to afford regular or adequate housing can use locations such as a park, vacant lot, or homeless shelter as their "home base" for voter registration. The voter is allowed to provide any physical location as an address as long as they consider it their "home base." As for mailing addresses, post office boxes can be used. This means that if an unhoused voter selects a physical location without a specific mailing address (such as a park), they can provide a post office as their mailing address. However, it's important to note that post office boxes are never acceptable for residency purposes. 

College students that are residents of Colorado may keep their registration in their hometown and vote by mail.