Figure 2.22 is a U.S. map showing any illicit drug use other than marijuana in past month among persons aged 18 to 25, 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 (9.39 to 13.37 percent) were Colorado, Delaware, Kentucky, Maine, Massachusetts, New Hampshire, New Mexico, Oklahoma, Rhode Island, and Washington. States in the next highest group (8.42 to 9.38 percent) were Alaska, Arizona, Arkansas, Louisiana, Missouri, Nevada, New Jersey, Oregon, South Carolina, and Vermont. States in the mid group (7.96 to 8.41 percent) were Alabama, Florida, Georgia, Indiana, Nebraska, North Carolina, Pennsylvania, Texas, West Virginia, Wisconsin, and Wyoming. States in the next lowest group (7.40 to 7.95 percent) were Connecticut, Idaho, Illinois, Maryland, Michigan, New York, Ohio, South Dakota, Tennessee, and Virginia. States in the lowest group (6.65 to 7.39 percent) were California, District of Columbia, Hawaii, Iowa, Kansas, Minnesota, Mississippi, Montana, North Dakota, and Utah.

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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.