What percentage of US votes used Dominion systems in 2024?

1. What the prominent fact-checkers reported: state count, not a national percentage

FactCheck reported that Dominion “will be used by 27 states in the 2024 election” and framed the claim under scrutiny as one about whether the company’s systems would operate in Florida ^[1]. Reuters also confirmed Dominion systems operated in Florida and described county-level deployment there (18 counties using Dominion, 49 using ES&S) — both sources therefore focus on how many states or counties used Dominion technology rather than giving a share of all U.S. votes cast on Dominion machines ^{[2] [1]}.

2. Local deployment matters more than raw state count for national vote share

Counting states that use a vendor’s equipment is a blunt metric: a single large state using a vendor covers far more voters than several small states combined. The available sources repeatedly cite “27 states” ^[1] or county maps for Florida ^[2], but none of the supplied reporting converts those jurisdiction counts into a percentage of total U.S. votes in 2024. Therefore, the state-count figures do not directly answer “what percentage of US votes used Dominion systems” ^{[1] [2]}.

3. Conflicting and broader descriptions in later reporting

Some outlets and summaries use broader language: The Guardian (in a 2025 piece) said Dominion systems “were used in over half the United States during the 2024 election” and that Dominion’s products “were used by millions of US voters across 27 states last year,” but that wording mixes geographic scope (“over half the United States”) and state-count figures without giving a vote-percent calculation ^{[4] [6]}. These characterizations illustrate how different reporters emphasize different metrics (states, counties, voter counts) while not reporting a single national percentage ^{[4] [6]}.

4. Vendor statements and audits emphasize ballots and audits, not vote share

Dominion itself highlights the paper-based or auditable nature of its systems and publishes resources to “set the record straight,” but these company materials in the supplied list focus on security, audits, and rebutting misinformation rather than providing a one-line national vote-share statistic for 2024 ^[7]. Likewise, Reuters and other fact-checkers quote Dominion spokespeople about deployments (for instance in Florida) but do not present a consolidated national percentage ^{[2] [8]}.

5. Expert trackers could produce an estimate — but are not in the supplied set

Advocacy and research groups (for example, Verified Voting and the Brennan Center) routinely track equipment usage and precinct-level machine types; the Brennan Center piece references Verified Voting data for equipment counts heading into November 2024 ^[9]. However, the specific percentage of total 2024 votes cast on Dominion systems is not provided in the supplied excerpts, and the current set of sources does not include a direct calculation based on county- or precinct-level turnout that would convert the “27 states” figure into a national vote share ^[9].

6. Bottom line and recommended next steps for a precise figure

Bottom line: reporting in the supplied sources documents that Dominion equipment was deployed in 27 states (and in many counties within states such as Florida) and was used by “millions” of voters, but none of the provided sources directly state the percentage of total U.S. votes cast on Dominion systems in 2024 ^{[1] [2] [6] [4]}. To produce a precise percentage, one would need county- or precinct-level deployment maps cross-referenced with official 2024 turnout figures (for example, Verified Voting’s equipment map plus state turnout data) — those underlying datasets are not included in the provided reporting ^{[9] [10]}.

Limitations: this article uses only the sources you supplied; available sources do not mention a definitive national percentage of 2024 votes on Dominion machines and therefore I do not assert one ^{[1] [2] [4]}.