US 41 in Illinois: fatal crashes
From 2015 to 2024, 96 fatal crashes on US 41 in Illinois killed 104 people, the 12th most of 212 numbered roads in Illinois. In 2024 there were 14 fatal crashes and 15 deaths on the road.
A US route running through 2 counties of Illinois. All fatal crashes in Illinois.
Deaths on US 41 in Illinois by year
| Year | Fatal crashes | Deaths |
|---|---|---|
| 2024 | 14 | 15 |
| 2023 | 11 | 13 |
| 2022 | 11 | 13 |
| 2021 | 11 | 13 |
| 2020 | 10 | 11 |
| 2019 | 11 | 11 |
| 2018 | 4 | 4 |
| 2017 | 10 | 10 |
| 2016 | 10 | 10 |
| 2015 | 4 | 4 |
Source: NHTSA Fatality Analysis Reporting System (FARS), 2024 Annual Report File (released April 2026, subject to revision). How we count
Where on US 41 in Illinois: the counties with the most fatal crashes
Cook County had the most fatal crashes on US 41 from 2015 to 2024: 64, with 71 deaths. Counties are listed from 5 fatal crashes.
| County | 2024 | 2015 to 2024 | Deaths | |
|---|---|---|---|---|
| 1 | Cook County | 10 | 64 | 71 |
| 2 | Lake County | 4 | 32 | 33 |
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 US 41 in Illinois
The heaviest slot is Saturday, midnight to 4 am (the night from Friday), with 10 fatal crashes from 2015 to 2024. The worst hour is 1 am to 2 am; the worst month is November.
| Midnight to 4 | 4 to 8 am | 8 to noon | Noon to 4 | 4 to 8 pm | 8 to midnight | |
|---|---|---|---|---|---|---|
| Sun | 7.3 percent, 7 fatal crashes | 4.2 percent, 4 fatal crashes | 2.1 percent, 2 fatal crashes | 1.0 percent, 1 fatal crash | 2.1 percent, 2 fatal crashes | 4.2 percent, 4 fatal crashes |
| Mon | 3.1 percent, 3 fatal crashes | 2.1 percent, 2 fatal crashes | 0.0 percent, 0 fatal crashes | 2.1 percent, 2 fatal crashes | 3.1 percent, 3 fatal crashes | 5.2 percent, 5 fatal crashes |
| Tue | 0.0 percent, 0 fatal crashes | 0.0 percent, 0 fatal crashes | 1.0 percent, 1 fatal crash | 2.1 percent, 2 fatal crashes | 0.0 percent, 0 fatal crashes | 2.1 percent, 2 fatal crashes |
| Wed | 1.0 percent, 1 fatal crash | 2.1 percent, 2 fatal crashes | 0.0 percent, 0 fatal crashes | 0.0 percent, 0 fatal crashes | 2.1 percent, 2 fatal crashes | 2.1 percent, 2 fatal crashes |
| Thu | 1.0 percent, 1 fatal crash | 0.0 percent, 0 fatal crashes | 2.1 percent, 2 fatal crashes | 2.1 percent, 2 fatal crashes | 1.0 percent, 1 fatal crash | 3.1 percent, 3 fatal crashes |
| Fri | 6.2 percent, 6 fatal crashes | 0.0 percent, 0 fatal crashes | 0.0 percent, 0 fatal crashes | 2.1 percent, 2 fatal crashes | 2.1 percent, 2 fatal crashes | 5.2 percent, 5 fatal crashes |
| Sat | 10.4 percent, 10 fatal crashes | 5.2 percent, 5 fatal crashes | 2.1 percent, 2 fatal crashes | 1.0 percent, 1 fatal crash | 3.1 percent, 3 fatal crashes | 4.2 percent, 4 fatal crashes |
By hour
By month
- Jan6.2%
- Feb9.4%
- Mar8.3%
- Apr7.3%
- May9.4%
- Jun4.2%
- Jul9.4%
- Aug10.4%
- Sep7.3%
- Oct10.4%
- Nov12.5%
- Dec5.2%
Source: NHTSA Fatality Analysis Reporting System (FARS), 2024 Annual Report File (released April 2026, subject to revision). How we count
What fatal crashes on US 41 in Illinois first hit
The first harmful event was a collision with another vehicle in 39%; a fixed object such as a tree, pole or barrier in 32%, a pedestrian in 21%, a cyclist in 4.2%.
| First harmful event | Fatal crashes | Share |
|---|---|---|
| Collision with another vehicle | 37 | 39% |
| Fixed object (tree, pole, barrier, ditch) | 31 | 32% |
| Pedestrian | 20 | 21% |
| Cyclist | 4 | 4.2% |
| Other | 2 | 2.1% |
| Rollover | 1 | 1.0% |
| Parked vehicle | 1 | 1.0% |
| 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 US 41 in Illinois compare with the state
The largest difference from Illinois: from 2015 to 2024, 0.0% of fatal crashes on US 41 in Illinois were on rural roads, against 34% across Illinois. Also above the Illinois share: distracted drivers. Below it: unlit roads at night and unbelted occupants. Shares of fatal crashes from 2015 to 2024, against the share across all of Illinois. A share is only given over 20 crashes; above or below means more than chance would give on 96 crashes.
| US 41 | Illinois | ||
|---|---|---|---|
| On rural stretches | 0.0% | 34% | below the Illinois share |
| At or near an intersection | 25% | 30% | about the same as the Illinois share |
| In the dark, road unlit | 12% | 25% | below the Illinois share |
| A drinking driver | 26% | 27% | about the same as the Illinois share |
| Speeding | 38% | 37% | about the same as the Illinois share |
| A distracted driver (as recorded) | 29% | 9.8% | above the Illinois share |
| Occupants killed unbelted | 34% | 46% | below the Illinois share |
| Hit-and-run | 7.3% | 8.4% | about the same as the Illinois share |
| A motorcycle involved | 13% | 14% | about the same as the Illinois share |
| Pedestrians among the dead | 21% | 16% | about the same as the Illinois share |
Source: NHTSA Fatality Analysis Reporting System (FARS), 2024 Annual Report File (released April 2026, subject to revision). How we count
Questions about fatal crashes on US 41 in Illinois
- How many fatal crashes have there been on US 41 in Illinois?
- 96 fatal crashes killed 104 people on US 41 in Illinois from 2015 to 2024. In 2024 there were 14 fatal crashes and 15 deaths. Source: NHTSA's Fatality Analysis Reporting System (FARS).
- Where on US 41 in Illinois do the most fatal crashes happen?
- Cook County had the most fatal crashes on US 41 from 2015 to 2024: 64, with 71 deaths. Lake County was second with 32.
- When do fatal crashes on US 41 in Illinois happen most often?
- The heaviest slot from 2015 to 2024 was Saturday, midnight to 4 am (the night from Friday), with 10 fatal crashes.
Other roads in Illinois with a page
All fatal crashes in Illinois, with every road ranked.
Where the US 41 numbers come from
Counted from NHTSA's Fatality Analysis Reporting System, 2024 Annual Report File: every fatal crash whose road NHTSA filed as US 41 in Illinois (filed under 26 spellings, such as "US- 41", "US-41", "US-41 (LAKE SHORE DRIVE)", "US-41 (SKOKIE HWY)"). Ramps, frontage and service roads are left out. Where two routes share a road, NHTSA files each crash under one of them, so a shared stretch counts on one route only. A fatal crash is one in which someone died within 30 days. Totals in state and news reports for a road usually differ: they include ramps and frontage roads, or count from preliminary reports. The full method.