Fatal Crash Data

Fatal crashes in Illinois

In 2024, 1,177 people died in 1,085 fatal crashes on Illinois roads, 5.2% fewer than in 2023. That is about 3 deaths a day, and 3% of all road deaths in the United States.

Illinois ranks 8th of 51 by road deaths in 2024, and 38th by deaths per resident. Every state in 2024.

Road deaths in Illinois since 1975

5001k1.5k2k198019902000201020241978: 2,1402024: 1,177

Road deaths in Illinois peaked in 1978 at 2,140; 2024's 1,177 is 45% below that. The lowest year was 2009 with 911. 2024 is 17% below 2000 and 42% below 1975.

YearDeathsFatal crashesChange
20241,1771,085-5.2%
20231,2411,143-2.1%
20221,2681,147-4.9%
20211,3341,210+11.8%
20201,1931,086+18.2%
20191,009938-2.5%
20181,035951-5.0%
20171,090998+1.1%
20161,0781,000+8.0%
2015998914+8.0%
Show 1975 to 2014
YearDeathsFatal crashesChange
2014924845-6.8%
2013991895+3.7%
2012956886+4.1%
2011918835-1.0%
2010927858+1.8%
2009911832-12.7%
20081,043950-16.4%
20071,2481,126-0.5%
20061,2541,136-8.0%
20051,3631,233+0.6%
20041,3551,224-6.8%
20031,4541,308+2.4%
20021,4201,273+0.4%
20011,4141,274-0.3%
20001,4181,274-2.6%
19991,4561,295+4.5%
19981,3931,241-0.3%
19971,3971,261-5.4%
19961,4771,312-6.9%
19951,5861,402+2.1%
19941,5541,395+11.6%
19931,3921,250+0.6%
19921,3841,249-4.4%
19911,4481,289-8.9%
19901,5891,430-9.1%
19891,7481,545-4.8%
19881,8371,666+11.1%
19871,6541,483+3.6%
19861,5961,449+4.0%
19851,5341,364-0.8%
19841,5471,385+1.4%
19831,5261,379-7.6%
19821,6511,475-9.3%
19811,8211,642-7.8%
19801,9751,776-2.1%
19792,0171,777-5.7%
19782,1401,877+0.7%
19772,1261,873+4.7%
19762,0311,781-0.5%
19752,0411,823No data

Deaths within 30 days of a crash on a public road, as NHTSA counts them. 2024 is the latest year NHTSA has published; the 2024 figures are from the Annual Report File and may be revised when NHTSA releases the final file. The 2025 file is expected in spring 2027.

The deadliest roads and most dangerous highways in Illinois

I-55 had the most fatal crashes of any numbered road in Illinois from 2015 to 2024: 251, with 285 deaths. The 20 roads listed held 22% of all fatal crashes in Illinois from 2015 to 2024; 8 are interstates, 6 US routes, 6 state highways. Interstate, US and state routes ranked by fatal crashes from 2015 to 2024; ramps and frontage roads are left out (97 crashes). Roads with 15 or more fatal crashes in 2022 to 2024 have their own page. Every numbered road in Illinois, ranked.

RoadFatal crashesDeaths2022 to 2024Counties with the most
1I-5525128583Will, Cook, McLean
2I-5721625764Cook, Champaign, Jefferson
3I-9415416454Cook, Lake
4US 4513014849Kankakee, Champaign, Saline
5I-8012714928Will, Cook, Grundy
6State Highway 8311912839Cook, DuPage, Lake
7State Highway 111112942Cook, Kankakee, Will
8State Highway 5010611242Cook, Kankakee, Will
9US 2010511832Winnebago, Cook, Jo Daviess
10US 3010111440Cook, Will, Whiteside
11I-9010111245Cook, Kane, Boone
12US 419610436Cook, Lake
13US 129010028Cook, Lake, McHenry
14State Highway 3909935St. Clair, Madison, Monroe
15I-74869529Vermilion, Peoria, McLean
16I-290829820Cook, DuPage
17US 6758022Cook, Will, LaSalle
18State Highway 43718023Cook, Lake
19State Highway 64717525Cook, DuPage, Kane
20I-70707823Effingham, Fayette, Madison

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

Download every numbered road in Illinois as CSV. Free to reuse with credit: “Fatal Crash Data, fatalcrashdata.com/fatal-crashes/illinois/, from NHTSA FARS (2024 Annual Report File).”

The deadliest counties in Illinois

Cook County had the most fatal crashes in Illinois from 2015 to 2024: 3,087, with 3,325 deaths. Cook, Will and Lake counties together held 39% of fatal crashes in Illinois from 2015 to 2024; the 20 listed held 71%. 102 counties in Illinois recorded a fatal crash in those years; the 20 with the most are listed, with deaths per 100,000 residents where the county had 10 or more deaths in 2024.

Per resident, Washington County has the highest rate in Illinois: 41.9 road deaths per 100,000 residents a year from 2015 to 2024, against 9.0 for the state as a whole. Counties with fewer than 10,000 residents are hatched rather than shaded: a few crashes on a highway through a small county make a rate that says more about its population than its roads.

Road deaths per 100,000 residents a year, 2015 to 2024up to 12.012.0 to 17.017.0 to 24.0over 24.0Highest in IllinoisUnder 10,000 residentsShades are the same in every state: the steps are the quartiles of all US counties. Outlines: US Census Bureau.
County20242015 to 2024DeathsDeaths per 100,000100K, 2024
1Cook County3333,0873,3257.0
2Will County545085638.2
3Lake County484394727.0
4DuPage County543994246.0
5St. Clair County4034637117.9
6Madison County3731934414.8
7Kane County293183445.8
8Winnebago County262893089.5
9Sangamon County2020321210.8
10McHenry County241962288.5
11LaSalle County2717118626.8
12Peoria County1616618011.1
13Kankakee County1915616621.6
14Champaign County101511634.7
15McLean County111391446.4
16Macon County1312813612.9
17Tazewell County1610611612.3
18Vermilion County8105115Not enough data
19DeKalb County8101109Not enough data
20Williamson County109510614.9

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

Download every county with a page as CSV. Free to reuse with credit: “Fatal Crash Data, fatalcrashdata.com/fatal-crashes/illinois/, from NHTSA FARS (2024 Annual Report File).”

The deadliest counties in America: every county ranked nationally, and per resident

When fatal crashes happen in Illinois

The heaviest slot is Sunday, midnight to 4 am (the night from Saturday), with 449 fatal crashes from 2015 to 2024. The worst hour is 6 pm to 7 pm; the worst month is July.

Share of fatal crashes 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
Sun4.3 percent, 449 fatal crashes2.1 percent, 217 fatal crashes1.5 percent, 159 fatal crashes2.5 percent, 261 fatal crashes3.5 percent, 361 fatal crashes3.0 percent, 314 fatal crashes
Mon1.9 percent, 197 fatal crashes1.8 percent, 187 fatal crashes1.8 percent, 187 fatal crashes2.7 percent, 277 fatal crashes3.0 percent, 312 fatal crashes2.2 percent, 229 fatal crashes
Tue1.2 percent, 124 fatal crashes1.5 percent, 156 fatal crashes1.5 percent, 154 fatal crashes2.3 percent, 237 fatal crashes2.6 percent, 274 fatal crashes2.2 percent, 232 fatal crashes
Wed1.3 percent, 133 fatal crashes1.6 percent, 167 fatal crashes1.9 percent, 199 fatal crashes2.3 percent, 244 fatal crashes2.7 percent, 280 fatal crashes2.4 percent, 250 fatal crashes
Thu1.2 percent, 126 fatal crashes1.7 percent, 174 fatal crashes1.9 percent, 193 fatal crashes2.6 percent, 272 fatal crashes3.0 percent, 311 fatal crashes2.8 percent, 294 fatal crashes
Fri1.8 percent, 190 fatal crashes1.7 percent, 178 fatal crashes1.9 percent, 193 fatal crashes3.0 percent, 310 fatal crashes3.1 percent, 325 fatal crashes3.6 percent, 374 fatal crashes
Sat3.8 percent, 400 fatal crashes2.1 percent, 223 fatal crashes2.0 percent, 206 fatal crashes2.5 percent, 263 fatal crashes3.3 percent, 345 fatal crashes4.3 percent, 447 fatal crashes

By hour

By month

  • Jan6.8%
  • Feb5.9%
  • Mar6.9%
  • Apr7.5%
  • May9.1%
  • Jun9.4%
  • Jul9.8%
  • Aug9.7%
  • Sep9.6%
  • Oct9.6%
  • Nov8.3%
  • Dec7.5%

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

Where fatal crashes happen in Illinois: rural or urban, intersection, dark or daylight

34% of fatal crashes in Illinois from 2015 to 2024 were on rural roads, below the US share of 43%; 30% happened at or near an intersection, above the US share of 25%; 25% in the dark on unlit roads, below the US share of 28%. Shares of fatal crashes from 2015 to 2024, against the share across the United States.

IllinoisUS
On rural roads34%43%below the US share
At or near an intersection30%25%above the US share
In daylight47%46%about the same as the US share
In the dark, road lit23%21%above the US share
In the dark, road unlit25%28%below the US share

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

Who died on Illinois roads in 2024

Vehicle occupants were 65% of the 1,177 people killed on Illinois roads in 2024; pedestrians 18% (213), motorcyclists 13% (150), cyclists 3.1% (37).

Road userDeathsShare
Vehicle occupants76765%
Pedestrians21318%
Motorcyclists15013%
Cyclists373.1%
Others (on personal conveyances, in parked vehicles, in buildings)100.8%

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

How fatal crashes happen in Illinois: alcohol, speeding, seat belts, hit-and-run

A drinking driver was recorded in 27% of fatal crashes in Illinois from 2015 to 2024, about the US share; speeding in 37%, above the US share of 27%; a hit-and-run in 8.4%, above the US share of 6.5%; a driver recorded as distracted in 9.8%, above the US share of 8.7%; 46% of passenger-vehicle occupants killed with belt use known were unbelted, below the US share of 49%.

Shares of fatal crashes from 2015 to 2024 with the factor recorded, against the US share. "A drinking driver" is NHTSA's drinking-driver flag (police-reported drinking or any positive alcohol test), not its "alcohol-impaired" figure. "Unbelted" is the share of passenger-vehicle occupants killed whose belt use is known (5,853 in Illinois).

IllinoisUS
A drinking driver27%26%about the same as the US share
Speeding37%27%above the US share
A distracted driver (as recorded)9.8%8.7%above the US share
Occupants killed unbelted46%49%below the US share
Hit-and-run8.4%6.5%above the US share
A motorcycle involved14%16%below the US share

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

What the first harmful event was

The first harmful event was a collision with another vehicle in 42%; a fixed object such as a tree, pole or barrier in 28%, a pedestrian in 16%, a rollover in 5.9%. What each fatal crash first hit, 2015 to 2024.

First harmful eventFatal crashesShare
Collision with another vehicle4,36842%
Fixed object (tree, pole, barrier, ditch)2,88228%
Pedestrian1,65316%
Rollover6205.9%
Other4844.6%
Cyclist2832.7%
Parked vehicle1801.7%
Not reported20.0%

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

Vehicles in fatal crashes in Illinois

Cars were 42% of the 15,808 vehicles in fatal crashes in Illinois from 2015 to 2024, SUVs 21%, pickups 11%, motorcycles 9.8%. Every vehicle in a fatal crash from 2015 to 2024, by body type.

TypeVehiclesShare
Cars6,69042%
SUVs3,27721%
Pickups1,80411%
Motorcycles1,5449.8%
Truck-tractors1,1377.2%
Vans7945.0%
Other trucks4953.1%
Buses670.4%

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

Road deaths in Illinois per resident and per mile driven

IllinoisUS
Deaths per 100,000 residents, 20249.311.5below the US rate
Deaths per 100,000 residents a year, 2015 to 20249.011.8below the US rate
Deaths per 100 million vehicle-miles, 20241.131.19below the US rate

Population 12,710,158 (Census Bureau estimate, 2024); 104,290 million vehicle-miles (FHWA Highway Statistics 2024, table VM-2). The only figures on this page not counted from FARS.

Questions about fatal crashes in Illinois

How many people died in car accidents in Illinois in 2024?
1,177 people died in 1,085 fatal crashes on Illinois roads in 2024, 5.2% fewer than in 2023. That is 9.3 deaths per 100,000 residents, against 11.5 across the United States. Source: NHTSA's Fatality Analysis Reporting System (FARS).
What is the deadliest road in Illinois?
I-55 had the most fatal crashes of any numbered road in Illinois from 2015 to 2024: 251, with 285 deaths. I-57 was second with 216.
Which county in Illinois has the most fatal crashes?
Cook County, with 3,087 fatal crashes and 3,325 deaths from 2015 to 2024, 333 of them in 2024.
When do fatal crashes in Illinois happen most often?
The heaviest slot from 2015 to 2024 was Sunday, midnight to 4 am (the night from Saturday), with 449 fatal crashes.
How many fatal crashes in Illinois involved a drinking driver?
2,847 of 10,472 fatal crashes in Illinois from 2015 to 2024 involved a driver NHTSA recorded as drinking, 27%, against 26% across the United States.

County pages for Illinois

Every county in Illinois with 30 or more fatal crashes from 2015 to 2024, each with its crashes by year, roads, hour and weekday, and deaths per 100,000 residents.

Road pages for Illinois

Every numbered road in Illinois with 15 or more fatal crashes from 2022 to 2024, each with its crashes by year, county, hour and weekday.

Where the Illinois numbers come from

Every figure on this page except the rates is counted from NHTSA's Fatality Analysis Reporting System, the federal census of fatal crashes on US public roads, 2024 Annual Report File. A fatal crash is one in which someone died within 30 days. Road names are normalised ("I-35", "I 35" and "I-35/PURPLE HEART TRL" are the same road); frontage roads and ramps ("I35 FRONTAGE") are left out of road counts. Totals from the state highway department and news reports can differ by a few: they count from the state's own crash reports, often before every death within 30 days is known, while NHTSA's file is checked and revised once a year. Fields NHTSA coded as unknown show as "Not reported"; a share is only given over 20 crashes, otherwise "Not enough data". Rates per resident and per mile use Census Bureau population estimates and FHWA vehicle-miles, the only figures not counted from FARS. The full method.