Prevalence of "Heavy" Alcohol Use in the US: "The estimate of 17.3 million people aged 12 or older in 2015 who were heavy alcohol users in the past month (Figure 21) represents 6.5 percent of the population aged 12 or older (Figure 23). In 2015, 221,000 adolescents aged 12 to 17 were current heavy alcohol users. Stated another way, about 1 out of 100 adolescents (0.9 percent) engaged in binge drinking on 5 or more days in the past 30 days. About 1 out of every 10 young adults aged 18 to 25 (10.9 percent) were heavy alcohol users in the past month, which corresponds to 3.8 million young adults. An estimated 6.4 percent of adults aged 26 or older in 2015 were current heavy alcohol users. This percentage corresponds to about 13.3 million adults aged 26 or older who were heavy alcohol users in the past month.