| Region 4 | ||||||||||||
| Number of Alcohol-Related Crashes with Fatalities or Injuries, Region 4 | ||||||||||||
| Source: Idaho Department of Transportation | ||||||||||||
| 1995 | 1996 | 1997 | 1998 | 1999 | 2000 | 2001 | 2002 | 2003 | 2004 | 2005 | 2006 | |
| Ada | 188 | 180 | 196 | 189 | 194 | 213 | 212 | 229 | 251 | 208 | 226 | 248 |
| Boise | 17 | 25 | 14 | 13 | 15 | 14 | 9 | 15 | 17 | 11 | 13 | 15 |
| Elmore | 33 | 37 | 27 | 15 | 20 | 22 | 18 | 24 | 27 | 15 | 25 | 11 |
| Valley | 17 | 16 | 15 | 15 | 2 | 12 | 7 | 13 | 13 | 18 | 9 | 14 |
| Region Total | 255 | 258 | 252 | 232 | 231 | 261 | 246 | 281 | 308 | 252 | 273 | 288 |