Smoke em if you got em. The California coast, parts of Colorado, Oregon and Washington lead the nation in cannabis consumption, new federal survey data reveals.

On Tuesday the Substance Abuse and Mental Health Services Administration (SAMHSA) released pot survey data of Americans age 12 and older.

Over 15 percent of San Franciscans age 12 and over used pot in the last month, which the Washington Post called “the highest rate in the country”.

San Francisco spearheaded both the adult-use and medical cannabis movements, beginning in the late ‘60s. Today it sports record-low unemployment and record-high housing prices as local innovators reshape the global marketplace.

Southern Texas near the Mexico border sports the lowest pot use rates at less than four percent.

Nationally, about 7.7 percent of Americans 12 and older used weed in the last month — 20.3 million people. Personal cannabis use is a federal crime, and about 700,000 people will get arrested for it this year. Americans consume an estimated 4,000 to 8,000 metric tons of marijuana each year.

Survey data mirrors trends in state-level legalization, as politics catches up to culture. From the latest data showing years 2012-2014, 204,000 respondents described their cannabis use.

Despite the widespread adoption of medical cannabis laws since California first went medical in 1996, monthly use rate have moved less than one percentage point from 2010 to 2014.

Since legalization in Colorado, teen use of pot has gone down, studies show.