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The use and possession of marijuana is illegal under U.S. federal law, but about three-quarters of states have legalized the drug for medical or recreational purposes. The changing legal landscape has coincided with a decades-long rise in public support for legalization, which a majority of Americans now favor.
Here are nine facts about Americans’ views of and experiences with marijuana, based on Pew Research Center surveys and other sources.
As more states legalize marijuana, Pew Research Center looked at Americans’ opinions on legalization and how these views have changed over time.
Data comes from surveys by the Center, Gallup, and the 2022 National Survey on Drug Use and Health from the U.S. Substance Abuse and Mental Health Services Administration. Information about the jurisdictions where marijuana is legal at the state level comes from the National Organization for the Reform of Marijuana Laws.
More information about the Center surveys cited in the analysis, including the questions asked and their methodologies, can be found at the links in the text.
Around nine-in-ten Americans say marijuana should be legal for medical or recreational use, according to a January 2024 Pew Research Center survey. An overwhelming majority of U.S. adults (88%) say either that marijuana should be legal for medical use only (32%) or that it should be legal for medical and recreational use (57%). Just 11% say the drug should not be legal in any form. These views have held relatively steady over the past five years.
Views on marijuana legalization differ widely by age, political party, and race and ethnicity, the January survey shows.
While small shares across demographic groups say marijuana should not be legal at all, those least likely to favor it for both medical and recreational use include:
Support for marijuana legalization has increased dramatically over the last two decades. In addition to asking specifically about medical and recreational use of the drug, both the Center and Gallup have asked Americans about legalizing marijuana use in a general way. Gallup asked this question most recently, in 2023. That year, 70% of adults expressed support for legalization, more than double the share who said they favored it in 2000.
Half of U.S. adults (50.3%) say they have ever used marijuana, according to the 2022 National Survey on Drug Use and Health. That is a smaller share than the 84.1% who say they have ever consumed alcohol and the 64.8% who have ever used tobacco products or vaped nicotine.
While many Americans say they have used marijuana in their lifetime, far fewer are current users, according to the same survey. In 2022, 23.0% of adults said they had used the drug in the past year, while 15.9% said they had used it in the past month.
While many Americans say legalizing recreational marijuana has economic and criminal justice benefits, views on these and other impacts vary, the Center’s January survey shows.
Democrats and adults under 50 are more likely than Republicans and those in older age groups to say legalizing marijuana has positive impacts in each of these areas.
Most Americans support easing penalties for people with marijuana convictions, an October 2021 Center survey found. Two-thirds of adults say they favor releasing people from prison who are being held for marijuana-related offenses only, including 41% who strongly favor this. And 61% support removing or expunging marijuana-related offenses from people’s criminal records.
Younger adults, Democrats and Black Americans are especially likely to support these changes. For instance, 74% of Black adults favor releasing people from prison who are being held only for marijuana-related offenses, and just as many favor removing or expunging marijuana-related offenses from criminal records.
Twenty-four states and the District of Columbia have legalized small amounts of marijuana for both medical and recreational use as of March 2024, according to the National Organization for the Reform of Marijuana Laws (NORML), an advocacy group that tracks state-level legislation on the issue. Another 14 states have legalized the drug for medical use only.
Of the remaining 12 states, all allow limited access to products such as CBD oil that contain little to no THC – the main psychoactive substance in cannabis. And 26 states overall have at least partially decriminalized recreational marijuana use, as has the District of Columbia.
In addition to 24 states and D.C., the U.S. Virgin Islands, Guam and the Northern Mariana Islands have legalized marijuana for medical and recreational use.
More than half of Americans (54%) live in a state where both recreational and medical marijuana are legal, and 74% live in a state where it’s legal either for both purposes or medical use only, according to a February Center analysis of data from the Census Bureau and other outside sources. This analysis looked at state-level legislation in all 50 states and the District of Columbia.
In 2012, Colorado and Washington became the first states to pass legislation legalizing recreational marijuana.
About eight-in-ten Americans (79%) live in a county with at least one cannabis dispensary, according to the February analysis. There are nearly 15,000 marijuana dispensaries nationwide, and 76% are in states (including D.C.) where recreational use is legal. Another 23% are in medical marijuana-only states, and 1% are in states that have made legal allowances for low-percentage THC or CBD-only products.
The states with the largest number of dispensaries include California, Oklahoma, Florida, Colorado and Michigan.
Note: This is an update of a post originally published April 26, 2021, and updated April 13, 2023.
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About Pew Research Center Pew Research Center is a nonpartisan fact tank that informs the public about the issues, attitudes and trends shaping the world. It conducts public opinion polling, demographic research, media content analysis and other empirical social science research. Pew Research Center does not take policy positions. It is a subsidiary of The Pew Charitable Trusts.
