Figure 5.19 is a U.S. map showing dependence on or abuse of any illicit drug or alcohol in past year 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 (24.62 to 29.42 percent) were Colorado, Montana, Nebraska, New Hampshire, New Mexico, North Dakota, Rhode Island, South Dakota, Wisconsin, and Wyoming. States in the next highest group (22.75 to 24.61 percent) were Alaska, Arizona, Hawaii, Illinois, Indiana, Massachusetts, Minnesota, Missouri, Vermont, and Washington. States in the mid group (21.33 to 22.74 percent) were Arkansas, Connecticut, Delaware, Iowa, Maine, Michigan, Ohio, Oregon, Pennsylvania, South Carolina, and Virginia. States in the next lowest group (20.18 to 21.32 percent) were District of Columbia, Florida, Idaho, Kansas, Louisiana, Nevada, New York, North Carolina, Oklahoma, and West Virginia. States in the lowest group (15.73 to 20.17 percent) were Alabama, California, Georgia, Kentucky, Maryland, Mississippi, New Jersey, Tennessee, Texas, 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.