FBI data shows Black Americans were arrested for marijuana at 3.73x (2013) and 3.64x (2020) the rate of white Americans — despite roughly equal rates of cannabis use — with disparities persisting in every state, including those with legalization.
Anyone interested in the intersection of drug policy and racial justice, policymakers designing equity provisions in cannabis legislation, advocates for criminal justice reform, and researchers studying enforcement disparities.
3.73 times — the rate at which Black Americans are arrested for marijuana compared to white Americans, despite roughly equal rates of cannabis use. The disparity exists in every state.
The Backstory
Everyone knew it was happening. Civil rights organizations had been saying it for decades. But in 2013, the ACLU published the numbers — and the numbers were devastating. Ezekiel Edwards, Will Bunting, and Lynda Garcia analyzed every marijuana arrest reported to the FBI over a decade and produced one statistic that would reshape the entire cannabis policy debate: Black Americans were arrested for marijuana at 3.73 times the rate of white Americans. Despite using marijuana at roughly the same rate.
Seven years later, after a wave of state-level legalization, decriminalization, and reform unlike anything in American drug policy history, the ACLU updated the analysis. The new number: 3.64 times. A decade of reform had barely moved the needle.
Two Reports, One Story
The ACLU's marijuana enforcement analyses came in two landmark installments, each based on the FBI's own arrest data.
Research Timeline
The ACLU Marijuana Enforcement Reports
"The War on Marijuana in Black and White"
"A Tale of Two Countries"
ACLU 2013, 2020
Together, these reports documented over 14 million marijuana arrests across nearly two decades of American law enforcement — making marijuana the single most common arrest offense in the United States for much of this period. And they showed, with granular county-level data, that the enforcement of marijuana prohibition was one of the most racially unequal features of the American criminal justice system.
The Core Numbers
Racial Disparities
Marijuana Arrest Disparities: Black vs. White Americans
3.73x
Arrest disparity (2001-2010)
Black Americans arrested at nearly 4x the rate of white Americans
3.64x
Arrest disparity (2010-2018)
Barely improved despite legalization wave
6.1M
Total arrests (2010-2018)
Nearly 700,000 in 2018 alone
96%+
Counties with disparity
Present in every single state
ACLU analysis of FBI Uniform Crime Reporting data
Let those numbers sink in. In over 96% of American counties, Black people were more likely to be arrested for marijuana than white people. Not in a few notoriously racist jurisdictions — everywhere. And the disparity wasn't shrinking in response to reform. Between the first and second report, the national ratio moved from 3.73x to 3.64x — a change so small it's statistically meaningless against the backdrop of 6.1 million arrests.
The Usage Gap That Doesn't Exist
The arrest disparity is not explained by differential drug use. The National Survey on Drug Use and Health (NSDUH), administered by SAMHSA, consistently shows that marijuana use rates are roughly similar across racial groups. White Americans and Black Americans report using marijuana at comparable rates, with some surveys showing slightly higher rates among white respondents.
Myth vs. Reality
Black Americans are arrested more for marijuana because they use it more.
NSDUH data consistently shows roughly equal marijuana use rates across racial groups. The arrest disparity reflects enforcement patterns — where police are deployed, who they stop, and what discretionary decisions they make — not differential drug use. A Black person and a white person using marijuana at the same rate face dramatically different odds of being arrested for it.
The Evidence
ACLU analysis combined FBI UCR arrest data with NSDUH prevalence data to demonstrate that the arrest-to-use ratio is approximately 3.7x higher for Black Americans.
ACLU (2013, 2020); NSDUH data
This is perhaps the most important point in the entire analysis. If Black Americans used marijuana at nearly four times the rate of white Americans, the arrest disparity would be troubling but at least partially explicable. They don't. The disparity is a measure of enforcement, not behavior.
Where the Disparities Are Worst
The national 3.73x average obscures enormous variation. In some counties, the disparity exceeded 10 to 1. In several states, it exceeded 5 to 1.
National average
3.73x2001-2010 period
Black arrest rate vs. white arrest rate
Worst states
>5xMultiple states exceeded 5:1 ratios
Including states with relatively small Black populations
Worst counties
>10xIndividual counties showed extreme disparities
Often in areas with aggressive policing strategies
Legalized states
Still >2xEven in states that legalized, remaining enforcement was racially skewed
The disparity shrinks in absolute arrests but persists in relative terms
ACLU (2013, 2020)
The geographic pattern reveals something uncomfortable: the disparity isn't concentrated in the South or in areas with historically overt racial hostility. It exists in liberal and conservative jurisdictions, in cities and rural areas, in states with large and small Black populations. It is a feature of American policing, not a regional anomaly.
The Methodology: FBI Data Made Visible
How They Did It
How the ACLU Built Its Case
The primary data source: arrest records voluntarily submitted by law enforcement agencies to the FBI. Covers the vast majority of US jurisdictions. This is the same data the FBI itself uses for its annual crime reports.
Used to calculate per-capita arrest rates by race. Without population denominators, raw arrest counts would be misleading.
National Survey on Drug Use and Health provided estimated marijuana use rates by race, demonstrating that the arrest disparity cannot be explained by differential use.
The ACLU didn't just report a national average. They calculated disparities for every state and thousands of counties, revealing the geographic pattern of enforcement inequality.
The 2020 report specifically examined whether the reform wave (2010-2018) had reduced disparities. Answer: barely.
ACLU methodology, both reports
The strength of this analysis lies in its data source. The ACLU didn't conduct surveys or rely on estimates — they used the FBI's own arrest records, the most comprehensive database of law enforcement activity in the country. The data is imperfect (UCR reporting is voluntary, and not all agencies participate), but it is the standard source for US crime statistics and is as authoritative as arrest data gets.
Why Reform Hasn't Fixed It
The 2020 report's most troubling finding wasn't the disparity itself — it was its persistence in the face of reform. Between 2010 and 2018, state after state decriminalized or legalized marijuana. Public attitudes shifted dramatically. Yet the racial enforcement gap barely moved.
Process
Why Legalization Hasn't Eliminated the Disparity
Even in legalized states, marijuana laws include age restrictions, public consumption bans, and quantity limits. Enforcement of these residual offenses remains racially disproportionate.
Police are deployed more heavily in Black neighborhoods. More police contact means more marijuana detection, regardless of actual use rates.
Officers exercise discretion in who to stop, search, cite, and arrest. Implicit and explicit bias affect these decisions. A white college student smoking on a porch is less likely to encounter police than a Black teenager on a street corner.
Prior marijuana convictions (themselves racially biased) create a feedback loop: criminal records lead to more police scrutiny, more stops, and more arrests.
Social equity licensing, expungement programs, and reinvestment mandates exist in many legalized states but have been slow, underfunded, and bureaucratically complex.
Synthesis of ACLU 2020, academic research on legalization outcomes
A 2022 study published in Social Science & Medicine confirmed this pattern: cannabis decriminalization reduces absolute arrest numbers but does not reliably reduce the racial disparity in arrest rates. A 2023 analysis titled "A tale of two cities" found that even in cities with full legalization, racialized arrest patterns persisted. And a 2024 Department of Justice investigation of the Memphis Police Department found a 5.2x Black-white disparity in marijuana citations — years after Tennessee had decriminalized possession.
The Human Cost
- Employment critical
A criminal record — even for simple marijuana possession — disqualifies applicants from many jobs. Background checks screen for any drug arrest. The lifetime earnings reduction from a criminal record has been estimated at 40%.
- Housing critical
Federally subsidized housing excludes individuals with drug convictions. Private landlords routinely screen criminal records. A marijuana arrest can lead to homelessness for already vulnerable individuals.
- Education high
Drug convictions can disqualify students from federal financial aid. College admissions often ask about criminal history. The educational pipeline is disrupted for those arrested during school years.
- Child custody high
Drug arrests and convictions are used in custody proceedings. Parents can lose access to their children based on a marijuana possession charge.
- Immigration critical
A single marijuana conviction can trigger deportation proceedings, denial of citizenship applications, and permanent bars to legal status — regardless of state legalization.
- Civic participation high
Felony convictions (including marijuana in some jurisdictions) result in loss of voting rights in many states. Jury service is restricted. Professional licensing can be denied.
ACLU reports; criminal justice impact research
These consequences fall 3.7 times more heavily on Black Americans. Over 14 million marijuana arrests in two decades means millions of criminal records, millions of disrupted lives, millions of cascading consequences — distributed along racial lines with mathematical precision.
The Author: Ezekiel Edwards
Ezekiel Edwards directed the ACLU's Criminal Law Reform Project and was the principal architect of both marijuana enforcement reports. His work transformed the ACLU's approach to drug policy from a traditional civil liberties framework (government overreach) to an explicit racial justice framework (racially targeted enforcement). The 2013 report is credited with shifting the national conversation about marijuana from a public health debate to a racial equity debate — providing the empirical ammunition that advocacy organizations, legislators, and ballot measure campaigns would cite for the next decade.
What Changed — and What Didn't
The ACLU reports are among the most cited analyses in American drug policy. They directly influenced:
- Ballot measure campaigns: Legalization initiatives in Colorado, Oregon, Illinois, New York, and other states cited ACLU disparity data in their equity arguments.
- Social equity provisions: Many state legalization laws now include equity licensing programs, reinvestment mandates, and expungement provisions — all justified by the data in these reports.
- Federal reform efforts: Congressional proposals for marijuana descheduling and rescheduling consistently reference ACLU arrest disparity data.
- DOJ investigations: Federal investigations of police departments (including Memphis, Ferguson, and others) have examined marijuana enforcement disparities as evidence of racially biased policing.
What hasn't changed is the fundamental finding: even with all this reform, racial disparities in marijuana enforcement persist. The data suggests that marijuana policy reform is necessary but not sufficient for addressing racial inequity in the criminal justice system. The problem isn't just the law — it's the system that enforces it.
Don't Black Americans use marijuana more than white Americans?
No. The National Survey on Drug Use and Health consistently shows roughly similar marijuana use rates across racial groups. Some surveys show slightly higher use among white respondents. The arrest disparity — nearly 4 to 1 — cannot be explained by differential use rates. It reflects enforcement patterns, not drug use patterns.
Has legalization fixed the racial disparity in marijuana arrests?
Not fully. While total marijuana arrests drop dramatically in legalized states, the racial disparity in remaining enforcement actions persists. Some studies find the relative disparity actually increases after legalization, because the remaining arrests are even more disproportionately of Black individuals. Legalization is necessary but not sufficient.
What about expungement programs?
Most states with legalization have created expungement pathways, but they've been slow and underfunded. In many states, expungement requires individuals to petition courts, hire lawyers, and navigate bureaucratic processes — barriers that disproportionately affect the communities most impacted by enforcement. Automatic expungement (where the state proactively clears records) is more effective but available in only a few jurisdictions.
Is the ACLU biased?
The ACLU is an advocacy organization that supports marijuana policy reform and civil liberties. However, the data in these reports comes from official FBI Uniform Crime Reporting statistics and US Census population data — government sources. The analysis has been independently confirmed by academic researchers. The advocacy perspective shapes the framing but not the underlying numbers.
Why does the disparity persist even where marijuana is legal?
Multiple factors: police are deployed more heavily in communities of color; residual marijuana offenses (public consumption, age restrictions, quantity limits) are enforced disproportionately; prior criminal records create feedback loops of increased scrutiny; and implicit bias affects discretionary decisions at every stage of law enforcement contact. Changing the law is one piece; changing policing is another.
The War on Marijuana in Black and White (2013) / A Tale of Two Countries: Racially Targeted Arrests in the Era of Marijuana Reform (2020)
Edwards, Ezekiel; Bunting, Will; Garcia, Lynda (2013) / Edwards, Ezekiel; Greytak, Emily; Madubuonwu, Brooke; Sanchez, Thania; et al. (2020) (2020) · American Civil Liberties Union
What the researchers found
Black Americans arrested for marijuana at 3.73x the rate of white Americans (2013 report, 2001-2010 data) and 3.64x (2020 report, 2010-2018 data), despite roughly equal usage rates across racial groups. Disparities present in every state and 96%+ of counties, including states with legalization.
Why it matters
These reports are the empirical foundation for the racial equity arguments driving cannabis policy reform. They demonstrated that prohibition enforcement was systematically racially biased regardless of actual drug use patterns, and that reform measures (decriminalization, legalization) have failed to eliminate the disparity.
How the study worked
Analysis of FBI Uniform Crime Reporting (UCR) data on marijuana arrests, cross-referenced with US Census population data and NSDUH drug use prevalence data. National, state, and county-level analyses. The 2013 report covered arrests from 2001-2010; the 2020 report updated through 2018.
Who was studied
All marijuana possession arrests reported to the FBI Uniform Crime Reporting program by US law enforcement agencies, analyzed by race at national, state, and county levels.
What this study cannot tell us
Based on FBI UCR data, which relies on voluntary reporting by law enforcement agencies and does not capture all arrests. NSDUH usage rates rely on self-report and may not perfectly capture true prevalence differences. The ACLU is an advocacy organization, though the underlying data is official government statistics. Cannot distinguish between disparate impact (more police in Black neighborhoods) and disparate treatment (racial profiling during encounters). Does not account for differences in public vs private use patterns, quantity possessed, or circumstances of arrest.
How to read the evidence
Strong evidence based on comprehensive analysis of official FBI arrest data. The data source (UCR) is the standard for US crime statistics. The ACLU analysis has been independently replicated and confirmed by academic researchers. The advocacy context does not undermine the data validity.
When this study was published
The 2020 report used data through 2018. More recent state-level analyses (2023-2024) confirm that racial disparities in marijuana enforcement persist even in legalized states.
The bigger picture
These reports transformed marijuana policy debate from a public health question to a civil rights question. They provided the data behind equity provisions in legalization ballot measures, social equity licensing programs, automatic expungement laws, and reinvestment mandates. Subsequent research has confirmed that even legalization doesn't fully eliminate the enforcement disparity, suggesting structural racism in policing extends beyond drug policy.
Funding
American Civil Liberties Union
Conflicts of interest
ACLU is an advocacy organization that supports marijuana policy reform. This does not invalidate the data analysis (based on official FBI statistics) but reflects an advocacy perspective.
Questions still open
- Why has legalization failed to eliminate the arrest disparity?
- How do social equity licensing programs perform in practice?
- What percentage of eligible marijuana convictions have actually been expunged?
- Does the disparity reflect biased policing or biased deployment patterns (or both)?
- How do arrest disparities translate to downstream outcomes (employment, housing, education)?
Common questions
Don't Black Americans use marijuana more than white Americans?
Has legalization fixed the disparity?
What about expungement — doesn't that help?
Why does the disparity persist in legalized states?
Read the original research
The War on Marijuana in Black and White / A Tale of Two Countries: Racially Targeted Arrests in the Era of Marijuana Reform
ACLU Research Reports (2013, 2020)
Policy reports from the American Civil Liberties Union, based on FBI Uniform Crime Reporting data. Not peer-reviewed academic publications but the most comprehensive analyses of racial disparities in marijuana enforcement.
Citation
Edwards, Ezekiel; Bunting, Will; Garcia, Lynda (2013); Edwards, Ezekiel; Greytak, Emily; Madubuonwu, Brooke; Sanchez, Thania; et al. (2020). (2020). The War on Marijuana in Black and White / A Tale of Two Countries: Racially Targeted Arrests in the Era of Marijuana Reform. ACLU Research Reports (2013, 2020).