| Region 4 | ||||||||||||
| Adult Violent Crime Arrests - Rate Per 1000 | ||||||||||||
| Including homicide, rape, robbery, and aggravated assault | ||||||||||||
| Source: Crime in Idaho Report | ||||||||||||
| 1996 | 1997 | 1998 | 1999 | 2000 | 2001 | 2002 | 2003 | 2004 | 2005 | 2006 | 2007 | |
| Ada | 0.75 | 0.83 | 0.89 | 0.76 | 0.80 | 0.75 | 0.83 | 0.70 | 0.71 | 0.82 | 0.98 | 0.94 |
| Boise | 0.20 | 1.19 | 1.76 | 1.32 | 1.20 | 2.28 | 1.56 | 0.69 | 0.68 | 0.66 | 0.13 | 0.53 |
| Elmore | 1.57 | 0.89 | 0.67 | 0.90 | 0.93 | 0.48 | 0.54 | 0.55 | 0.48 | 0.77 | 0.28 | 0.55 |
| Valley | 0.88 | 1.61 | 0.62 | 0.76 | 1.57 | 1.04 | 2.39 | 1.42 | 1.13 | 1.20 | 1.61 | 1 |