| Region 4 | ||||||||
| Adolescent Primary Drug of Abuse | ||||||||
| Source: IDHW Client Information System | ||||||||
| 1999-2000 | 2000-2001 | 2001-2002 | 2002-2003 | 2004-2005 | 2005-2006 | 2006-2007 | 2007-2008 | |
| Alcohol | 41 | 48 | 66 | 39 | 12 | 12 | 14 | 31 |
| Methamphetamines | 17 | 26 | 21 | 14 | 22 | 36 | 20 | 19 |
| Marijuana | 67 | 112 | 91 | 53 | 33 | 60 | 87 | |
| Cocaine | 2 | 2 | 1 | 1 | 0 | 2 | 2 | 5 |
| Heroin | 1 | 2 | 0 | 0 | 1 | 0 | 0 | 0 |
| Other Compounds | 1999-2000 | 2000-2001 | 2001-2002 | 2002-2003 | 2004-2005 | 2005-2006 | 2006-2007 | 2007-2008 |
| Non-Rx Methadone | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 |
| Other Opiates/Synth | 0 | 1 | 0 | 1 | 0 | 2 | 1 | 6 |
| PCP | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 |
| Hallucinogens | 2 | 3 | 0 | 1 | 0 | 0 | 0 | 2 |
| Other Amphetamines | 1 | 1 | 0 | 0 | 0 | 0 | 2 | 3 |
| Other Inhalants | 0 | 0 | 0 | 0 | ||||
| Benzodiazpine | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 |
| Other Tranquilizers | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 |
| Barbituates | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 |
| Other Sedatives | 0 | 0 | 0 | 1 | 0 | 0 | 0 | 0 |
| Inhalants | 0 | 0 | 1 | 0 | 0 | 2 | 2 | 1 |
| Over-the-Counter | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 |
| Other | 0 | 0 | 1 | 0 | 0 | 0 | 0 | 0 |
| None | 1 | 0 | 0 | 0 | 0 | 0 | 0 | 0 |