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League of Women Voters

Colorado ID Needed for Voting

If you are voting by mail for the first time you may need to provide a photocopy of your identification with your ballot. Voters who recently registered for the first time and are voting by mail are required to provide a photocopy of their identification.

When voting in person you will need one of the following types of identification:

  • A valid Colorado driver's license
  • A valid identification card issued by the Colorado Department of Revenue
  • A valid U.S. passport
  • A valid employee identification card with a photograph of the eligible elector issued by any branch, department, agency, or entity of the U.S. government or Colorado, or by any Colorado county, municipality, board, authority, or other political subdivision of this state
  • A valid pilot's license issued by the Federal Aviation Administration or other authorized agency of the United States
  • A valid U.S. military identification card with photograph of the elector
  • A copy of a current utility bill, bank statement, government check, paycheck, or other government document that shows the name and address of the elector. A cable bill, a telephone bill, documentation from a public institution of higher education in Colorado containing at least the name, date of birth, and residence address of the student elector, or a paycheck from a government institution are also sufficient forms of identification
  • A valid Medicare or Medicaid card
  • A certified copy of a U.S. birth certificate
  • Certified documentation of naturalization
  • A valid student identification card with a photograph of the eligible elector issued by an institute of higher education in Colorado.
  • A valid veteran identification card issued by the United States department of veterans affairs veterans health administration with a photograph of the eligible election
  • A valid identification card issued by a federally recognized tribal government certifying tribal membership
  • A Certificate of Degree of Indian or Alaskan Native Blood
  • Verification that a voter is a resident of a group residential facility
  • Verification that a voter is a person committed to the department of human services and confined and eligible to register and vote

A Social Security number (or last four digits) is NOT a legal form of identification for voting in person. Neither is any document produced by Colorado's statewide registration system.

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