TrustVotingAtlas
Stateus-co

ColoradoPaper + scan

All-mail-ballot state — every active registered voter is automatically mailed a paper ballot for every election (C.R.S. § 1-7.5-104 et seq.). In-person voting is at Voter Service and Polling Centers with BMDs and precinct optical scanners. Colorado was the first US state to implement a statewide risk-limiting audit (C.R.S. § 1-7-515). Foundational law: Colorado Revised Statutes Title 1 (Elections). Source: leg.colorado.gov.

Overall44.5%EAdI 21.9%EAI 50.0%ECI 57.7%EDRI 63.6%EVCI 75.0%EII 37.7%
Paper + scanVoting method

Voting Channels

How voters cast a ballot

The voting channels available under current law, each verified against the cited statute.

  • Election dayElection-day in personall

    In-person voting at a Voter Service and Polling Center on election day.

    C.R.S. Title 1

  • EarlyEarly in personall-voters

    In-person voting at Voter Service and Polling Centers during the days before election day.

    C.R.S. Art. 7.5 (Voter Service and Polling Centers)

  • PostalPostal / mailno-excuse

    Colorado is an all-mail-ballot state: every active registered voter is mailed a ballot; no excuse required.

    C.R.S. § 1-7.5-104 et seq. (Mail Ballot Act)

  • ProxyProxynot available

    No proxy voting.

  • InternetInternetnot available

    No internet voting for general voters.

Methodology Radar

Dimension Breakdown

EAdI21.9%
Election Administration Index
Accountability50%
Commission10%
Funding0%
Staff Training0%
Vendor Oversight67%
EAI50.0%
Electoral Access Index
Administration0%
Eligibility20%
Identification40%
Registration86%
Roll Integrity0%
Voter Assistance67%
Voting Methods50%
ECI57.7%
Election Campaign-Finance Index
Contributions67%
Disclosure80%
Enforcement25%
Foreign Source50%
EDRI63.6%
Election Dispute Resolution Index
Contest60%
Recount75%
Timing50%
EVCI75.0%
Election Voter-Confidence Index
Ballot Info75%
Candidate75%
Notification75%
EII37.7%
Election Integrity Index
Citizen Verifiability13%
Custody Hardware38%
Post Election Audit56%
Software Verifiability22%
Transparency Observation13%
Vendor Independence25%
Voter Access100%

Primary Instruments

CitationTypeTitleSectionsStatus
C.R.S. Title 1, Art. 1CodeC.R.S. Title 1, Art. 120active
C.R.S. Title 1, Art. 10CodeC.R.S. Title 1, Art. 1012active
C.R.S. Title 1, Art. 11CodeC.R.S. Title 1, Art. 1140active
C.R.S. Title 1, Art. 12CodeC.R.S. Title 1, Art. 1234active
C.R.S. Title 1, Art. 13CodeC.R.S. Title 1, Art. 1356active
C.R.S. Title 1, Art. 2CodeC.R.S. Title 1, Art. 256active
C.R.S. Title 1, Art. 3CodeC.R.S. Title 1, Art. 39active
C.R.S. Title 1, Art. 4CodeC.R.S. Title 1, Art. 485active
C.R.S. Title 1, Art. 40CodeC.R.S. Title 1, Art. 4033active
C.R.S. Title 1, Art. 41CodeC.R.S. Title 1, Art. 412active
C.R.S. Title 1, Art. 45CodeC.R.S. Title 1, Art. 4525active
C.R.S. Title 1, Art. 46CodeC.R.S. Title 1, Art. 466active
C.R.S. Title 1, Art. 5CodeC.R.S. Title 1, Art. 577active
C.R.S. Title 1, Art. 6CodeC.R.S. Title 1, Art. 620active
C.R.S. Title 1, Art. 7CodeC.R.S. Title 1, Art. 767active
C.R.S. Title 1, Art. 9CodeC.R.S. Title 1, Art. 98active

Methodologies — Datapoint Drill-In

Each methodology card above takes you to Colorado's scoring detail for that methodology — every datapoint, with rationale and the exact statute that justifies the score.

EAdIEAIECIEDRIEVCIEII
For a single datapoint side-by-side across every jurisdiction, see e.g. /atlas/datapoint/1.1.
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