SurveyUSA is out with a new poll on marijuana legalization, and find that 56% of adults support it, with 42% opposed and 3% undecided. Some of the interesting crosstabs include:

Age 18-34: 74% yes, 25% no

35-49: 46% yes, 50% no

50-64: 49% yes, 49% no

65+: 39% yes, 54% no

Men: 65% yes, 32% no

Women: 46% yes, 51% no

Republicans: 46% yes, 53% no

Democrats: 59% yes, 37% no

Independents: 62% yes, 36% no

Of the four racial categories given, (white, black, Hispanic, Asian) only Hispanics oppose it, 45% to 53%.

The poll results aren’t all that surprising. Last year Nate Silver also noticed that Generation X, currently between their early 30s and their late 40s, is less supportive of marijuana legalization and much less likely to have used it themselves. But the Boomer generation is evenly split, and Millennials are overwhelmingly supportive of legalization.

For supporters, this gives a rough road map to victory in November. Turning out Millennial voters is absolutely essential. Boomers seem gettable too. A concerted push targeting female and Latino voters also strikes me as wise. Particularly necessary is making the case that this actually helps parents protect their children, not harm them. Initative supporters should start planning a pre-emptive strike before opponents pull a Prop 8 and make this a “what about the children?” campaign.

The poll appears to be of all adults, and not of likely voters, so this should not be taken as a sure sign of victory in November. There’s a lot of work to be done between now and then to ensure this initiative passes.