Current Marijuana and Other Illegal Substance Use and Trends in the US

"The estimated 30.5 million people aged 12 or older who were current illicit drug users in 2017 represent 11.2 percent of the population aged 12 or older (Figures 11 and 12). Stated another way, 1 in 9 individuals aged 12 or older in the United States used illicit drugs in the past month. Approximately 2.0 million adolescents aged 12 to 17 in 2017 were current users of illicit drugs, which represents 7.9 percent of adolescents. Approximately 1 in 4 young adults aged 18 to 25 (24.2 percent) were current users of illicit drugs in 2017.