| Region 4 | ||||||||||||
| Rate Per 1000 of Population in Alcohol-Related Crashes with Fatalities or Injuries | ||||||||||||
| 1999 | 2000 | 2001 | 2002 | 2003 | 2004 | 2005 | 2006 | |||||
| Ada | 0.7 | 0.7 | 0.7 | 0.7 | 0.8 | 0.6 | 0.6 | 0.7 | ||||
| Boise | 2.8 | 2.1 | 1.3 | 2.1 | 2.3 | 1.5 | 1.8 | 2.0 | ||||
| Elmore | 0.8 | 0.8 | 0.6 | 0.8 | 0.9 | 0.5 | 0.9 | 0.4 | ||||
| Valley | 0.3 | 1.6 | 0.9 | 1.7 | 1.7 | 2.3 | 1.1 | 1.6 | ||||