Some people wanted to see maps of the distributions of specific drugs, to which I say: very well! Here are some more maps derived from the SAMHSA report's own maps. First, weed:
Here's a heroin map, based on a different SAMHSA report (note this one shows "TEDS treatment admissions," rather than actual use):
And here's a map for meth (from a previous post; also shows admissions rather than drug use per se):
Some interesting stuff here. I wonder how it's possible for New York to be in the top quintile for cocaine use, and New Jersey to be in the bottom quintile. And I wonder why heroin is so heavily concentrated in the Northeast Corridor while that same region is practically meth-free. And I wonder why the Mountain West uses tons of drugs, but the Plains states not so much. And I wonder why Mississippians don't like to do drugs. I wonder many things.
There are more maps in the SAMHSA report, but again I warn you: their color scheme is profoundly misguided.
UPDATE: All right, one more. Here's overall drug use, non-marijuana division: