Hi there! Interesting question. Based on 2005 and 2006 survey data on illicit drug use in the past month among youth 12-17, states with the highest illicit drug use were Alaska, Arkansas, District of Columbia, Maine, Massachusetts, Montana, New Mexico, Oregon, Rhode Island, and Vermont. States in the next highest group (10.29 to 10.84 percent) were Alabama, Arizona, Delaware, Hawaii, Michigan, Nevada, New Hampshire, New York, North Carolina, and Wyoming. States in the mid group (9.97 to 10.28 percent) were Colorado, Connecticut, Florida, Illinois, Kentucky, Minnesota, Oklahoma, South Dakota, Tennessee, Washington, and West Virginia. States in the next lowest group (8.99 to 9.96 percent) were California, Indiana, Iowa, Louisiana, Missouri, New Jersey, Ohio, South Carolina, Virginia, and Wisconsin. States in the lowest group (6.76 to 8.98 percent) were Georgia, Idaho, Kansas, Maryland, Mississippi, Nebraska, North Dakota, Pennsylvania, Texas, and Utah. For more information go to: http://www.oas.samhsa.gov/states.cfm.