I-90 in Illinois: fatal crashes
From 2015 to 2024, 101 fatal crashes on I-90 in Illinois killed 112 people, the 11th most of any numbered road in Illinois. In 2024 there were 21 fatal crashes and 22 deaths on the road.
An interstate running through 5 counties of Illinois. All fatal crashes in Illinois.
Deaths on I-90 in Illinois by year
| Year | Fatal crashes | Deaths |
|---|---|---|
| 2015 | 9 | 9 |
| 2016 | 8 | 9 |
| 2017 | 7 | 7 |
| 2018 | 4 | 4 |
| 2019 | 10 | 10 |
| 2020 | 9 | 9 |
| 2021 | 9 | 10 |
| 2022 | 15 | 23 |
| 2023 | 9 | 9 |
| 2024 | 21 | 22 |
Source: NHTSA Fatality Analysis Reporting System (FARS), 2024 Annual Report File (released April 2026, subject to revision). How we count
Where on I-90 in Illinois: the counties with the most fatal crashes
Cook County had the most fatal crashes on I-90 from 2015 to 2024: 76, with 78 deaths. Counties are listed from 5 fatal crashes.
| County | 2024 | 2015 to 2024 | Deaths | |
|---|---|---|---|---|
| 1 | Cook | 17 | 76 | 78 |
| 2 | Kane | 2 | 9 | 9 |
| 3 | Boone | 0 | 7 | 7 |
| 4 | Winnebago | 2 | 5 | 6 |
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-90 in Illinois
Too few crashes to name a heaviest slot. The grid shows the shares; a share is only given over 20 crashes.
| Midnight to 4 | 4 to 8 am | 8 to noon | Noon to 4 | 4 to 8 pm | 8 to midnight | |
|---|---|---|---|---|---|---|
| Sun | 7.9 percent, 8 fatal crashes | 4.0 percent, 4 fatal crashes | 2.0 percent, 2 fatal crashes | 2.0 percent, 2 fatal crashes | 3.0 percent, 3 fatal crashes | 3.0 percent, 3 fatal crashes |
| Mon | 1.0 percent, 1 fatal crashes | 0.0 percent, 0 fatal crashes | 4.0 percent, 4 fatal crashes | 2.0 percent, 2 fatal crashes | 3.0 percent, 3 fatal crashes | 4.0 percent, 4 fatal crashes |
| Tue | 1.0 percent, 1 fatal crashes | 0.0 percent, 0 fatal crashes | 3.0 percent, 3 fatal crashes | 0.0 percent, 0 fatal crashes | 1.0 percent, 1 fatal crashes | 1.0 percent, 1 fatal crashes |
| Wed | 1.0 percent, 1 fatal crashes | 2.0 percent, 2 fatal crashes | 3.0 percent, 3 fatal crashes | 1.0 percent, 1 fatal crashes | 2.0 percent, 2 fatal crashes | 1.0 percent, 1 fatal crashes |
| Thu | 2.0 percent, 2 fatal crashes | 0.0 percent, 0 fatal crashes | 3.0 percent, 3 fatal crashes | 2.0 percent, 2 fatal crashes | 3.0 percent, 3 fatal crashes | 0.0 percent, 0 fatal crashes |
| Fri | 3.0 percent, 3 fatal crashes | 4.0 percent, 4 fatal crashes | 3.0 percent, 3 fatal crashes | 3.0 percent, 3 fatal crashes | 2.0 percent, 2 fatal crashes | 6.9 percent, 7 fatal crashes |
| Sat | 5.0 percent, 5 fatal crashes | 3.0 percent, 3 fatal crashes | 1.0 percent, 1 fatal crashes | 3.0 percent, 3 fatal crashes | 2.0 percent, 2 fatal crashes | 3.0 percent, 3 fatal crashes |
By hour
By month
- Jan5.9%
- Feb5.9%
- Mar8.9%
- Apr9.9%
- May7.9%
- Jun15.8%
- Jul7.9%
- Aug5.0%
- Sep7.9%
- Oct10.9%
- Nov5.9%
- Dec7.9%
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-90 in Illinois first hit
| First harmful event | Fatal crashes | Share |
|---|---|---|
| Collision with another vehicle | 42 | 42% |
| Fixed object (tree, pole, barrier, ditch) | 29 | 29% |
| Pedestrian | 12 | 12% |
| Other | 7 | 6.9% |
| Rollover | 6 | 5.9% |
| Parked vehicle | 5 | 5.0% |
| Cyclist | 0 | 0.0% |
| Not reported | 0 | 0.0% |
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-90 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-90 | Illinois | ||
|---|---|---|---|
| On rural stretches | 11% | 34% | below the Illinois share |
| At or near an intersection | 0.0% | 30% | below the Illinois share |
| In the dark, road unlit | 4.0% | 25% | below the Illinois share |
| A drinking driver | 26% | 27% | below the Illinois share |
| Speeding | 55% | 37% | above the Illinois share |
| Occupants killed unbelted | 48% | 46% | above the Illinois share |
| Hit-and-run | 11% | 8.4% | above the Illinois share |
| A motorcycle involved | 12% | 14% | below the Illinois share |
| Pedestrians among the dead | 13% | 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-90 numbers come from
Counted from NHTSA's Fatality Analysis Reporting System, 2024 Annual Report File: every fatal crash whose road NHTSA filed as I-90 in Illinois (filed under 36 spellings, such as "I- 90", "I-90", "I-90 I-94 DAN RYAN EXPWY", "I-90 JANE ADAMS MEMORIAL TOLL"). Ramps, frontage and service roads are left out. A fatal crash is one in which someone died within 30 days. The full method.