Historical Shifts
Marijuana use among U.S. adults has more than doubled over the past decade. The survey, which relies on a two-year rolling average for accuracy, does not specify how cannabis is consumed—whether through smoking, vaping, or edibles.
Lifetime Usage Trends
Gallup’s long-term data shows that nearly half (47%) of American adults have tried marijuana at least once. This number has risen dramatically since 1969, when only 4% admitted to experimenting with cannabis. By 1977, it had surged to 24%, reaching 33% in 1985 and remaining below 40% until 2015. Today, it is just shy of 50%.
This shift reflects evolving societal attitudes and growing acceptance of marijuana, influenced by legal reforms and cultural changes.