In adults, vaping has been increasing as some smokers switch to e-cigarettes or new users pick up vaping. In 2023, 6.5% of U.S. adults reported using e-cigarettes, up from 4.5% in 2019. This upward trend means roughly 16 million adult vapers (since there are ~250 million adults in the U.S.).
Notably, young adults (age 21–24) have the highest vaping rate at 15.5% in 2023, suggesting that many nicotine users of the younger generation prefer vaping over traditional smoking.
Overall, when combining adults and youth, the number of people using electronic cigarettes is substantial. An estimated 26.6 million Americans vaped nicotine in the past month in 2023 (this includes all ages 12 and up)