Voting Rules in Colorado

Source: www.sos.state.co.us · Last verified May 2026
Voter ID Requirement
Non-Strict Non-Photo ID

ID requested; non-photo accepted. Voters who return ballots by mail are verified by signature.

Mail-In Ballot Eligibility
All-Mail State

Colorado mails a ballot to every active registered voter. Drop boxes and in-person voting also available.

Early Voting
Available

Voter service centers open 15 days before Election Day.

Registration Deadline
8 Days Before Election Day (Online/Mail); Same-Day Registration At Vote Centers

Voter registration must be completed by October 26, 2026. Online registration is available.

Same-Day Registration
Yes

Voters may register and vote on Election Day at voter service centers.

Polling Hours
7:00 AM – 7:00 PM

Polls are open from 7:00 AM – 7:00 PM on Election Day. If you are in line when polls close you are entitled to vote.

Candidates on the Ballot

Sources: Ballotpedia · Official state election filings

Candidate data will be added as 2026 races are formally declared.

Check back as filing deadlines approach · www.sos.state.co.us

Upcoming Election Dates

Jun23
Primary Election Day
Republican and Democratic primaries · Determines nominees for the General Election
Upcoming
Oct26
Voter Registration Deadline
Last day to register for the November 2026 General Election · 8 days before Election Day (online/mail); same-day registration at vote centers
Upcoming
Nov3
General Election Day
Polls open 7:00 AM – 7:00 PM · If you are in line when polls close you are entitled to vote
Upcoming

Polling Place Finder

Powered by Google Civic Information API · Official government data

Enter Your Address

Find your assigned polling location, hours, and early voting sites. Data is pulled directly from official government sources via the Google Civic Information API.

Powered by Google Civic Information API · Data sourced from official government records

Register to Vote in Colorado

Official Colorado Voter Registration

Register online, by mail, or in person at your local election office. You must be a U.S. citizen, a Colorado resident, and at least 18 years old by Election Day.

Register at www.sos.state.co.us →
Deadline: 8 days before Election Day (online/mail); same-day registration at vote centers
Online: Yes — www.sos.state.co.us/voter/pages/pub/home.xhtml
By Mail: Yes — received by deadline
In Person: Yes
Same-Day Reg: Yes
Citizenship: U.S. Citizen required