| Region 3 | ||||||||
| Adolescent IDU Clients by County | ||||||||
| Source: IDHW Client Information System | ||||||||
| 1999-2000 | 2000-2001 | 2001-2002 | 2002-2003 | 2005 | 2006 | 2007 | 2008 | |
| Adams | 0 | 0 | 0 | |||||
| Canyon | 10 | 5 | 7 | 3 | ||||
| Gem | 0 | 3 | 1 | 2 | ||||
| Owyhee | 0 | 1 | 0 | 0 | ||||
| Payette | 1 | 4 | 3 | 1 | ||||
| Washington | 0 | 0 | 0 | 0 | ||||
| Total | 11 | 13 | 11 | 6 | 8 | 11 | 11 | 3 |