The Illinois Secretary of State maintains a fact book with important considerations for driving under the influence (DUI), including several detailed statistical breakdowns. Before delving into the details, it is important to note that the statistics below represent 2016 data. The Illinois Secretary of State will update the handbook once 2017 data is available.
Illinois DUI Statistics for Average Offender
The average DUI offender in Illinois is overwhelmingly male, with men representing approximately 75% of total DUIs. The average offender is also 34 years old, with offenders aged 35 or less representing approximately 57% of total DUIs.
Additionally, the average DUI offender in Illinois was arrested:
Between 11 p.m. and 4 a.m.;
During a weekend; and
With a BAC of 0.16.
Illinois DUI Statistics Based on BAC
Illinois DUIs based on BAC have the following distribution:
Drivers with a BAC between 0.08 and 0.09 represented approximately 7% of Illinois