According to a Jan. 5, 2018 Pew Research Center survey, as of last October, 61 percent of Americans support the legalization of marijuana. This is up a bit from a year ago, when that figure was 57 percent, but almost double what it was in 2000, 31 percent.
The Pew survey found that support varies widely between different groups. For example, millennials (born between 1980-1994), Gen-Xers (born between 1965-1979), and baby boomers (born between 1946-1964) support legalization at rates of 70 percent, 66 percent and 56 percent respectively. In contrast, 58 percent of the silent generation, those born between mid- 1925 and 1945, oppose legalization, while only 35 percent favor it.