Figure 2.16 is a U.S. map showing perceptions of great risk of smoking marijuana once a month among persons aged 26 or older, by State: percentages, annual averages based on 2002 and 2003 NSDUHs. States listed here in alphabetical order within each group were divided into five groups based on the magnitude of their percentages. States in the highest group (47.08 to 54.57 percent) were Alabama, Arkansas, Georgia, Iowa, Louisiana, Mississippi, North Carolina, South Carolina, Texas, and West Virginia. States in the next highest group (43.91 to 47.07 percent) were Florida, Indiana, Kansas, Kentucky, Nebraska, New Jersey, Oklahoma, Pennsylvania, Tennessee, and Utah. States in the mid group (39.23 to 43.90 percent) were Arizona, Delaware, Idaho, Illinois, Missouri, New Mexico, North Dakota, Ohio, South Dakota, Virginia, and Wyoming. States in the next lowest group (35.49 to 39.22 percent) were California, Connecticut, District of Columbia, Hawaii, Maryland, Michigan, Montana, Nevada, New York, and Wisconsin. States in the lowest group (28.57 to 35.48 percent) were Alaska, Colorado, Maine, Massachusetts, Minnesota, New Hampshire, Oregon, Rhode Island, Vermont, and Washington.

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SAMHSA, an agency in the Department of Health and Human Services, is the Federal Government's lead agency for improving the quality and availability of substance abuse prevention, addiction treatment, and mental health services in the United States.