Fatal Crash Data

I-57 in Illinois: fatal crashes

From 2015 to 2024, 216 fatal crashes on I-57 in Illinois killed 257 people, the 2nd most of any numbered road in Illinois. In 2024 there were 20 fatal crashes and 24 deaths on the road.

An interstate running through 18 counties of Illinois. All fatal crashes in Illinois.

Deaths on I-57 in Illinois by year

102030201620182020202220242017: 342024: 24
YearFatal crashesDeaths
20151313
20162125
20172634
20182629
20191721
20202330
20212632
20222324
20232125
20242024

Source: NHTSA Fatality Analysis Reporting System (FARS), 2024 Annual Report File (released April 2026, subject to revision). How we count

Where on I-57 in Illinois: the counties with the most fatal crashes

Cook County had the most fatal crashes on I-57 from 2015 to 2024: 71, with 80 deaths. Counties are listed from 5 fatal crashes.

County20242015 to 2024Deaths
1Cook107180
2Jefferson11720
3Champaign01717
4Franklin01520
5Williamson21518
6Kankakee21314
7Iroquois01013
8Marion01012
9Will1912
10Union0711
11Coles1710
12Effingham178
13Cumberland056

Source: NHTSA Fatality Analysis Reporting System (FARS), 2024 Annual Report File (released April 2026, subject to revision). How we count

When fatal crashes happen on I-57 in Illinois

The heaviest slot is Sunday, midnight to 4 am, with 18 fatal crashes from 2015 to 2024. The worst hour is 1 am to 2 am; the worst month is June.

Share of fatal crashes in I-57 in Illinois by weekday and time of day, 2015 to 2024, in percent
Midnight to 44 to 8 am8 to noonNoon to 44 to 8 pm8 to midnight
Sun8.4 percent, 18 fatal crashes2.8 percent, 6 fatal crashes1.4 percent, 3 fatal crashes3.3 percent, 7 fatal crashes5.1 percent, 11 fatal crashes2.3 percent, 5 fatal crashes
Mon3.3 percent, 7 fatal crashes2.3 percent, 5 fatal crashes1.4 percent, 3 fatal crashes0.9 percent, 2 fatal crashes1.9 percent, 4 fatal crashes2.3 percent, 5 fatal crashes
Tue2.8 percent, 6 fatal crashes0.9 percent, 2 fatal crashes1.9 percent, 4 fatal crashes0.9 percent, 2 fatal crashes2.3 percent, 5 fatal crashes1.4 percent, 3 fatal crashes
Wed2.8 percent, 6 fatal crashes0.5 percent, 1 fatal crashes5.1 percent, 11 fatal crashes4.2 percent, 9 fatal crashes1.9 percent, 4 fatal crashes1.9 percent, 4 fatal crashes
Thu1.4 percent, 3 fatal crashes2.3 percent, 5 fatal crashes2.3 percent, 5 fatal crashes3.3 percent, 7 fatal crashes2.3 percent, 5 fatal crashes1.9 percent, 4 fatal crashes
Fri2.3 percent, 5 fatal crashes0.9 percent, 2 fatal crashes2.3 percent, 5 fatal crashes3.3 percent, 7 fatal crashes2.3 percent, 5 fatal crashes1.4 percent, 3 fatal crashes
Sat3.7 percent, 8 fatal crashes3.3 percent, 7 fatal crashes0.5 percent, 1 fatal crashes1.9 percent, 4 fatal crashes0.5 percent, 1 fatal crashes1.9 percent, 4 fatal crashes

By hour

By month

  • Jan4.6%
  • Feb5.6%
  • Mar5.6%
  • Apr9.7%
  • May8.3%
  • Jun13.4%
  • Jul9.7%
  • Aug8.8%
  • Sep6.5%
  • Oct11.6%
  • Nov6.9%
  • Dec9.3%

Source: NHTSA Fatality Analysis Reporting System (FARS), 2024 Annual Report File (released April 2026, subject to revision). How we count

What fatal crashes on I-57 in Illinois first hit

First harmful eventFatal crashesShare
Collision with another vehicle8740%
Fixed object (tree, pole, barrier, ditch)7535%
Pedestrian188.3%
Rollover188.3%
Other104.6%
Parked vehicle83.7%
Cyclist00.0%
Not reported00.0%

Source: NHTSA Fatality Analysis Reporting System (FARS), 2024 Annual Report File (released April 2026, subject to revision). How we count

How fatal crashes on I-57 in Illinois compare with the state

Shares of fatal crashes from 2015 to 2024, against the share across all of Illinois. A share is only given over 20 crashes.

I-57Illinois
On rural stretches49%34%above the Illinois share
At or near an intersection0.5%30%below the Illinois share
In the dark, road unlit26%25%above the Illinois share
A drinking driver24%27%below the Illinois share
Speeding44%37%above the Illinois share
Occupants killed unbelted51%46%above the Illinois share
Hit-and-run5.6%8.4%below the Illinois share
A motorcycle involved6.9%14%below the Illinois share
Pedestrians among the dead8.6%16%below the Illinois share

Source: NHTSA Fatality Analysis Reporting System (FARS), 2024 Annual Report File (released April 2026, subject to revision). How we count

Other roads in Illinois with a page

All fatal crashes in Illinois, with every road ranked.

Where the I-57 numbers come from

Counted from NHTSA's Fatality Analysis Reporting System, 2024 Annual Report File: every fatal crash whose road NHTSA filed as I-57 in Illinois (filed under 18 spellings, such as "I- 57", "I-57", "I-57 (KEN GRAY EXPRESSWAY)", "I-57 KEN GRAY EXPRES"). Ramps, frontage and service roads are left out. A fatal crash is one in which someone died within 30 days. The full method.