Idaho Traffic Safety Resource Prosecutor

Facts about DUI in Idaho and Throughout the Nation

Online Edition of the Idaho DUI Factbook

This online edition of the Idaho DUI Factbook is as accurate as possible at the time of publication. This manual does not cover every aspect of Idaho's DUI laws and should not be cited as a legal authority in court.

In Idaho in 2012:

  • There were more than 21,402 vehicle collisions resulting in 184 fatalities.
  • Impaired driving resulted in 1,593 collisions..
  • 73 people were killed in impaired driving collisions.  Approximately 40 percent of all fatalities were the result of an impaired driving collision.
  • The Idaho State Police, Bureau of Criminal Identification, recorded 9,141 DUI arrests in 2012.
  • The estimated cost of Idaho impaired driving collisions in 2012 exceeded $605 million dollars.
  • Drivers ages 17-39 are over-represented in impaired driving collisions.  The most over-represented group is ages 19-23.  This group of drivers was involved in more than twice as many driving collisions as would be expected. Nearly 13% of the impaired drivers involved in crashes were under 21 years of age.


  • In 2011, 32,367 people were killed in the estimated 5,338,000 police-reported
    motor vehicle traffic crashes; 2,217,000 people were injured; and 3,778,000 crashes resulted in property damage only.
  • An average of 89 people died each day in motor vehicle crashes in 2011—one every16 minutes.
  • In 2011, there were 9,878 alcohol-impaired-driving fatalities. This is a decrease of 2.5 percent compared to 2010 (10,136), and it represents an average of one alcohol impaired-driving fatality every 53 minutes.

Facts about .08 BAC levels:

  • All 50 states, the District of Columbia and Puerto Rico have .08 BAC per se laws.
  • At .08 all drivers are impaired to the point that critical driving skills are greatly diminished.  Laboratory and on-road research shows that the vast majority of drivers, even experienced drinkers, are significantly impaired at .08 with regard to critical driving tasks such as braking, steering, changing lanes, divided attention tasks and judgment.
  • To reach .08, a 170-pound male would have to consume four or more drinks in a one-hour period on an empty stomach.  A 137-pound female would have to consume three drinks in one-hour period on an empty stomach to reach .08.  A drink is considered a 12-oz beer, a 5-oz glass of wine or a cocktail containing 1.5 ounces of 80-proof liquor.
  • At .08, a driver is three times more likely to be involved in a car crash than a sober driver, and 11 times more likely to be killed in a single-vehicle crash.