Is voter fraud a problem in the US?

No, voter fraud is not a significant or widespread problem in U.S. elections. It occurs occasionally as isolated incidents (mostly by individuals), but documented rates are vanishingly small—typically measured in thousandths or hundred-thousandths of a percent of votes cast—and it has not been shown to alter the outcomes of modern national or most statewide elections.[1]

Key Data and Studies

Multiple independent analyses, government reviews, academic research, and even databases from conservative sources consistently reach this conclusion:

•The Heritage Foundation (a conservative think tank) maintains a database of “proven” election fraud cases (criminal convictions, civil penalties, diversions, or official findings). It lists roughly 1,500–1,620 cases spanning from the 1980s to recent years (a sampling, not exhaustive). These cover decades and hundreds of millions to billions of ballots cast nationwide. Brookings Institution analyses of this data show rates like 0.0000845% in Arizona (36 cases over 25 years and ~42.6 million ballots) and similarly tiny figures in Pennsylvania (~39 cases over 30 years and >100 million ballots). Most cases involve one person; few are organized schemes.[2]

•The Brennan Center for Justice reviewed carefully studied elections and found fraud rates of 0.0003% to 0.0025% of votes cast. In-person voter impersonation is especially rare—more likely that a person is struck by lightning than successfully impersonates another voter at the polls. A Washington Post analysis identified just 31 credible in-person impersonation cases out of >1 billion ballots (2000–2014).[3]

•A specialized U.S. Department of Justice unit examining the 2002 and 2004 federal elections found a fraudulent-ballot rate of about 0.00000013%, with no evidence of coordinated efforts or in-person impersonation. Other reviews (e.g., Kansas Secretary of State across 84 million votes in 22 states) referred tiny numbers for prosecution.[3]

•Mail-in/absentee ballot fraud (often highlighted in debates) is also rare. A Brookings analysis of 2016–2022 elections estimated about 4 cases per 10 million mail ballots on average (0.000043%). Heritage’s database includes hundreds of absentee-related cases over decades, still a tiny fraction. Studies (including from the American Statistical Association) find no evidence that mail voting systematically increases fraud risk; universal mail systems can even have lower rates than request-based absentee ones due to better tracking.[4]

•Noncitizen voting is vanishingly rare. Heritage lists around 100 cases over decades. Intensive recent federal efforts have produced hundreds of investigations/arrests or charges (e.g., ~160 arrests in one reported push), but these are a tiny share of >200 million registered voters and do not indicate systemic issues. State audits and studies (Brennan Center of 42 jurisdictions covering 23.5 million 2016 votes) find suspected cases at rates like 0.0001% or lower; many “matches” in data cross-checks prove false positives.[5]

•Post-2020 reviews (Associated Press in battleground states, audits, recounts, >60 lawsuits) found fewer than 475 potential problematic votes across six key states—far too few to affect Biden’s margins—and no coordinated fraud. Statistical claims of anomalies were systematically debunked in peer-reviewed work (e.g., Proceedings of the National Academy of Sciences). CISA and election officials repeatedly described recent elections (including 2020 and 2024) as highly secure, with no evidence of compromised systems or material fraud impacting outcomes.[6]

Context on Scale and Impact

U.S. elections involve enormous volumes: presidential elections alone cast 140–160+ million votes recently; over decades, billions of ballots. A few hundred or thousand fraud cases nationwide over 40 years is statistically negligible. Fraud has occasionally affected small local races (e.g., via vote-buying or absentee schemes in low-turnout contests), and there are historical examples (like aspects of the 1948 Texas Senate race). However, experts (including analyses of Heritage data) state that ballot fraud has not altered modern federal election outcomes.[2]

Why is it so rare? Serious criminal penalties (felonies, jail time, fines), bipartisan oversight, decentralized administration (thousands of jurisdictions), paper ballot trails in most places, signature verification, voter ID requirements in many states, audits, cross-checks (e.g., ERIC or DMV data), and the practical difficulty of scaling fraud without detection all act as strong deterrents. Most alleged “fraud” turns out to be clerical errors, misunderstandings, or double-counting issues that are corrected.[1]

Caveats

No large system is perfect—some fraud goes undetected, databases like Heritage are samples, and enforcement varies. Isolated cases continue to be prosecuted (including recent noncitizen and absentee ones). Safeguards should be maintained and improved where vulnerabilities exist (e.g., better list maintenance). However, the overwhelming evidence from courts, officials of both parties, academics, and data shows it is not a systemic problem capable of swinging national results. Inflated claims can erode trust more than the actual (tiny) incidence of fraud does.

Citations (6)

1newsweek.comNews and mediaquality 0.82
https://www.newsweek.com/voter-fraud-us-elections-data-research-1978342
Backs: “It occurs occasionally as isolated incidents (mostly by individuals), but documented rates are vanishingly small—typically measured in thousandths or hundred-thousandths of a percent of votes cast—and it has not been shown to alter the outcomes of modern national or most statewide elections.”
2brookings.eduNonprofits and think tanks
https://www.brookings.edu/articles/how-widespread-is-election-fraud-in-the-united-states-not-very/
Backs: “Brookings Institution analyses of this data show rates like 0.0000845% in Arizona (36 cases over 25 years and ~42.6 million ballots) and similarly tiny figures in Pennsylvania (~39 cases over 30 years and >100 million ballots). Most cases involve one person; few are organized schemes.”
3legalclarity.orgCommercial content
https://legalclarity.org/voter-fraud-statistics-rates-enforcement-and-laws/
Backs: “A Washington Post analysis identified just 31 credible in-person impersonation cases out of >1 billion ballots (2000–2014).”
4nytimes.comNews and mediaquality 0.86
https://www.nytimes.com/2026/04/07/us/politics/trump-mail-voting-elections-fact-check.html
Backs: “Studies (including from the American Statistical Association) find no evidence that mail voting systematically increases fraud risk; universal mail systems can even have lower rates than request-based absentee ones due to better tracking.”
5pbs.orgNews and mediaquality 0.87
https://www.pbs.org/newshour/politics/trumps-focus-on-noncitizen-voting-has-led-to-160-arrests-that-shows-its-rare-experts-say
Backs: “State audits and studies (Brennan Center of 42 jurisdictions covering 23.5 million 2016 votes) find suspected cases at rates like 0.0001% or lower; many “matches” in data cross-checks prove false positives.”
6apnews.comNews and mediaquality 1.00
https://apnews.com/article/voter-fraud-election-2020-joe-biden-donald-trump-7fcb6f134e528fee8237c7601db3328f
Backs: “CISA and election officials repeatedly described recent elections (including 2020 and 2024) as highly secure, with no evidence of compromised systems or material fraud impacting outcomes.”