"Among people aged 12 or older in 2024, 73.6 million people used illicit drugs in the past year (Figure 13). The most commonly used illicit drug in the past year was marijuana, which was used by 64.2 million people. In the past year, 10.4 million people used hallucinogens, and 7.6 million people misused prescription opioids (shown as “Rx Opioid Misuse” in the figure). Smaller numbers of people were past year users or misusers of the other illicit drugs shown in Figure 13.25"
Substance Abuse and Mental Health Services Administration. (2025). Key substance use and mental health indicators in the United States: Results from the 2024 National Survey on Drug Use and Health (HHS Publication No. PEP25-07-007, NSDUH Series H-60). Center for Behavioral Health Statistics and Quality, Substance Abuse and Mental Health Services Administration.