Fatal Crash Data

Fatal crashes in Will County, Illinois

In 2024, 58 people died in 54 fatal crashes in Will County, 38.1% more than in 2023. From 2015 to 2024 the county recorded 508 fatal crashes and 563 deaths, the 2nd most of any county in Illinois.

8.2 deaths per 100,000 residents, against 9.3 across Illinois in 2024; 8.1 against 9 a year over 2015 to 2024. Population 708,583, Census Bureau estimate. All fatal crashes in Illinois.

Deaths in Will County by year

204060201620182020202220242021: 702024: 58
YearFatal crashesDeaths
20245458
20233642
20225965
20216070
20205761
20195454
20185258
20174759
20164245
20154751

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

The deadliest roads in Will County

I-55 had the most fatal crashes of any numbered road in Will County from 2015 to 2024: 60, with 65 deaths. The 15 roads listed held 50% of all fatal crashes in Will County from 2015 to 2024; 4 are interstates, 4 US routes, 7 state highways. Interstate, US and state routes with 5 or more fatal crashes in the county; county roads and city streets are in the county's total but not listed.

RoadFatal crashesDeaths2022 to 2024
1I-55606518
2I-8040467
3State Highway 5326287
4US 3023259
5US 5216203no page
6State Highway 17113154
7State Highway 713146no page
8US 612133
9US 4510114
10I-579122
11State Highway 18101
12State Highway 3948102no page
13State Highway 507112
14I-355552no page
15State Highway 59551no page

Cities NHTSA filed, with their fatal crashes from 2015 to 2024: Joliet 77, Bolingbrook 26, Lockport 18, Romeoville 14, Crest Hill 13, Plainfield 11, Naperville 9, New Lenox 7. The city is not filed for crashes outside a city.

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

When fatal crashes happen in Will County

The heaviest slot is Thursday, 4 to 8 pm, with 25 fatal crashes from 2015 to 2024. The worst hour is 5 pm to 6 pm; the worst month is August.

Share of fatal crashes in Will County 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
Sun3.7 percent, 19 fatal crashes1.8 percent, 9 fatal crashes1.8 percent, 9 fatal crashes2.2 percent, 11 fatal crashes4.1 percent, 21 fatal crashes3.5 percent, 18 fatal crashes
Mon2.2 percent, 11 fatal crashes1.6 percent, 8 fatal crashes2.4 percent, 12 fatal crashes2.8 percent, 14 fatal crashes2.6 percent, 13 fatal crashes2.0 percent, 10 fatal crashes
Tue1.0 percent, 5 fatal crashes1.2 percent, 6 fatal crashes0.6 percent, 3 fatal crashes2.6 percent, 13 fatal crashes3.0 percent, 15 fatal crashes2.0 percent, 10 fatal crashes
Wed1.2 percent, 6 fatal crashes1.6 percent, 8 fatal crashes1.8 percent, 9 fatal crashes3.0 percent, 15 fatal crashes4.1 percent, 21 fatal crashes2.4 percent, 12 fatal crashes
Thu1.0 percent, 5 fatal crashes2.0 percent, 10 fatal crashes2.2 percent, 11 fatal crashes2.6 percent, 13 fatal crashes4.9 percent, 25 fatal crashes3.1 percent, 16 fatal crashes
Fri1.4 percent, 7 fatal crashes1.8 percent, 9 fatal crashes1.8 percent, 9 fatal crashes1.8 percent, 9 fatal crashes1.4 percent, 7 fatal crashes4.7 percent, 24 fatal crashes
Sat2.8 percent, 14 fatal crashes1.8 percent, 9 fatal crashes2.4 percent, 12 fatal crashes2.4 percent, 12 fatal crashes3.3 percent, 17 fatal crashes4.1 percent, 21 fatal crashes

By hour

By month

  • Jan7.1%
  • Feb6.1%
  • Mar8.9%
  • Apr6.1%
  • May9.3%
  • Jun9.8%
  • Jul8.9%
  • Aug10.0%
  • Sep9.1%
  • Oct9.3%
  • Nov7.3%
  • Dec8.3%

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

What fatal crashes in Will County first hit

The first harmful event was a collision with another vehicle in 50%; a fixed object such as a tree, pole or barrier in 26%, a pedestrian in 12%, a rollover in 5.7%.

First harmful eventFatal crashesShare
Collision with another vehicle25450%
Fixed object (tree, pole, barrier, ditch)13026%
Pedestrian6112%
Rollover295.7%
Other214.1%
Cyclist71.4%
Parked vehicle61.2%
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 in Will County compare with Illinois

A drinking driver was recorded in 30% of fatal crashes in Will County from 2015 to 2024, above the Illinois share of 27%; speeding in 43%, above the Illinois share of 37%; a hit-and-run in 5.7%, below the Illinois share of 8.4%; a driver recorded as distracted in 6.9%, below the Illinois share of 9.8%; 43% of passenger-vehicle occupants killed with belt use known were unbelted, below the Illinois share of 46%. Shares of fatal crashes from 2015 to 2024, against the share across all of Illinois. A share is only given over 20 crashes.

WillIllinois
On rural roads13%34%below the Illinois share
At or near an intersection29%30%below the Illinois share
In the dark, road unlit27%25%above the Illinois share
A drinking driver30%27%above the Illinois share
Speeding43%37%above the Illinois share
A distracted driver (as recorded)6.9%9.8%below the Illinois share
Occupants killed unbelted43%46%below the Illinois share
Hit-and-run5.7%8.4%below the Illinois share
A motorcycle involved19%14%above the Illinois share
Pedestrians among the dead12%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

Questions about fatal crashes in Will County

How many people died in car accidents in Will County in 2024?
58 people died in 54 fatal crashes in Will County, Illinois, in 2024, 38.1% more than in 2023. That is 8.2 deaths per 100,000 residents, against 9.3 across Illinois.
What is the deadliest road in Will County?
I-55 had the most fatal crashes of any numbered road in Will County from 2015 to 2024: 60, with 65 deaths.
When do fatal crashes in Will County happen most often?
The heaviest slot from 2015 to 2024 was Thursday, 4 to 8 pm, with 25 fatal crashes.
How many fatal crashes in Will County involved a drinking driver?
152 of 508 fatal crashes in Will County from 2015 to 2024 involved a driver NHTSA recorded as drinking, 30%, against 27% across Illinois.

Other counties in Illinois with a page

All fatal crashes in Illinois, with every county ranked.

Where the Will County numbers come from

Counted from NHTSA's Fatality Analysis Reporting System, 2024 Annual Report File: every fatal crash NHTSA filed in Will County (county code 197). A fatal crash is one in which someone died within 30 days. The rate per 100,000 uses the Census Bureau's population estimate for the county; it is the only figure here not counted from FARS. The full method.