Current Marijuana and Other Illegal Substance Use and Trends in the US
"The estimated 28.6 million people aged 12 or older who were current illicit drug users in 2016 represent 10.6 percent of the population aged 12 or older (Figures 15 and 16). Stated another way, 1 in 10 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 2016 were current users of illicit drugs, which represents 7.9 percent of adolescents. Approximately 1 in 4 young adults aged 18 to 25 (23.2 percent) were current users of illicit drugs in 2016. This percentage corresponds to about 8.0 million young adults who were current users of illicit drugs. An estimated 8.9 percent of adults aged 26 or older were current users of illicit drugs, or about 18.6 million adults in this age group.
"As noted in the illicit drug use section, an estimated 24.0 million Americans aged 12 or older in 2016 were current users of marijuana (Figure 15). This number of past month marijuana users corresponds to 8.9 percent of the population aged 12 or older (Figure 17). The percentage of people aged 12 or older who were current marijuana users in 2016 was higher than the percentages from 2002 to 2015. This increase in marijuana use among people aged 12 or older reflects the increase in marijuana use by adults aged 26 or older and, to a lesser extent, the increase in marijuana use among young adults aged 18 to 25."
Substance Abuse and Mental Health Services Administration. (2017). Key substance use and mental health indicators in the United States: Results from the 2016 National Survey on Drug Use and Health (HHS Publication No. SMA 17-5044, NSDUH Series H-52). Rockville, MD: Center for Behavioral Health Statistics and Quality, Substance Abuse and Mental Health Services Administration, pp. 14-15. Retrieved from https://www.samhsa.gov/data/