According to data collected by the FBI, law enforcement officers in the U.S. arrested approximately 663,000 people for marijuana-related offenses in 2018, the latest year for which data is available. It's still the most commonly charged drug in the U.S., despite the fact that 33 states have at least partially legalized it.
Even though more and more states have legalized marijuana, the overall number of arrests for marijuana offenses continued to rise in 2018, according to new data from the FBI. There were 663,367 marijuana arrests nationwide last year, up from 659,700 in 2017. That itself was a jump from 2016's total of 653,249. Before that, marijuana arrests had been dropping steadily for more than a decade.
Marijuana arrests make up over half of all drug arrests in the U.S., and approximately 88 percent of marijuana arrests are for possession. Enforcing our state and federal marijuana laws costs the U.S. about $3.6 billion every year, yet doing so has had virtually no measurable impact on the availability of marijuana. It also ensnares hundreds of thousands of people in the criminal justice system.