| Region 4 | |||||||||
| Trend Analysis of Adult Clients in Idaho by Region | |||||||||
| Source: IDHW Client Information System | |||||||||
| 1999 | 2000 | 2001 | 2002 | 2005 | 2006 | 2007 | 2008 | ||
| Ada | 628 | 657 | 702 | 512 | 70 | 233 | 388 | 411 | |
| Boise | 17 | 13 | 13 | 11 | 0 | 4 | 5 | 3 | |
| Elmore | 96 | 110 | 117 | 97 | 83 | 87 | 68 | 18 | |
| Valley | 55 | 26 | 52 | 59 | 3 | 6 | 10 | 9 | |
| Total | 796 | 806 | 884 | 679 | 156 | 330 | 471 | 441 | |