| Region 4 | ||||||||
| Homicides Rate Per 1000 | ||||||||
| Source: Crime in Idaho Report | ||||||||
| 1999 | 2000 | 2001 | 2002 | 2003 | 2004 | 2005 | 2006 | |
| Ada | 0.0106 | 0.0066 | 0.0096 | 0.0188 | 0.0215 | 0.0000 | 0.0203 | 0.0138 |
| Boise | 0.0000 | 0.0000 | 0.1426 | 0.0000 | 0.0000 | 0.0000 | 0.0000 | 0.0000 |
| Elmore | 0.0000 | 0.0343 | 0.0000 | 0.1018 | 0.0346 | 0.0346 | 0.0349 | 0.0000 |
| Valley | 0.0000 | 0.0000 | 0.0000 | 0.1329 | 0.0000 | 0.0000 | 0.0000 | 0.0000 |
| *Numbers beginning in 2002 are murders reported per county. | ||||||||