CrashRate

Fatal crash rate · Illinois

Fatal crash rate in Lake County, Illinois

Fatal crashes recorded by NHTSA in Lake County, Illinois, 2020 to 2024, divided by the people who live there. Fatal crashes only: not injuries, not all crashes, not traffic in general.

Lake County, Illinois2024 · fatal crashes recorded by NHTSA

6.7fatal crashes per 100,000 residents in 2024

In 2024, NHTSA recorded 48 fatal crashes in Lake County, Illinois, where 718,490 people lived. That is 6.7 fatal crashes for every 100,000 residents, and 50 people died in those crashes. Over 2020 to 2024 the average was 6.7.

The road is a scale of fatal crashes per 100,000 residents in 2024, 0 to 40. The yellow post is Lake County; the white posts are Illinois and the United States.

Per 100,000
48 fatal crashes ÷ 718,490 residents × 100,000 = 6.7
Five-year
240 crashes (2020 to 2024) ÷ 3,571,707 resident-years × 100,000 = 6.7
Same year
Illinois: 1,085 ÷ 12,703,033 = 8.5 · United States: 36,297 ÷ 340,003,797 = 10.7

Every year, 2020 to 2024

YearFatal crashesDeathsPopulationPer 100,000
20204450713,3776.2
20213637713,7755.0
20225560712,4127.7
20235760713,6538.0
20244850718,4906.7

2024 is NHTSA’s Annual Report File and will be revised when the final file replaces it. Populations are July 1 estimates, Census Vintage 2025.

What the record says about those crashes, 2020 to 2024

Every figure is a count of the 240 fatal crashes NHTSA coded to Lake County, Illinois over five years, from the fields FARS records. Nothing is estimated or inferred.

Road typeCrashesShare
Interstate146%
Other freeway or expressway21%
Other principal arterial9941%
Minor arterial8435%
Major collector188%
Minor collector31%
Local road198%
Unknown or not reported10%
Rural31%
Urban23698%
Time of dayCrashesShare
Midnight to 5:59 am5021%
6 am to 11:59 am4619%
Noon to 5:59 pm5523%
6 pm to 11:59 pm8837%
Hour unknown10%
LightCrashesShare
Daylight10845%
Dark, not lighted (or lighting unknown)6125%
Dark, lighted6326%
Dawn or dusk52%
Unknown or not reported31%
WeatherCrashesShare
Clear20385%
Cloudy104%
Rain167%
Snow, sleet or freezing rain83%
Fog, smog or smoke10%
Severe wind, blowing sand or other00%
Unknown or not reported21%
InvolvingCrashesShare
A pedestrian4117%
A bicyclist or other cyclist83%
A speeding-related vehicle7632%
A driver police reported as drinking2310%
Most-named roadsCrashes
I-9412
US-4110
US-128
LEWIS AVE7
SR-837

Road type is FARS FUNC_SYS; speeding is any vehicle coded SPEEDREL 2 to 5; drinking is any driver coded DRINKING = 1 (police-reported, not a blood-alcohol test). Road names are the trafficway strings as the police coded them, counted as written, so the same road can appear under two spellings.

How this is counted

  • Fatal crashes are rows in NHTSA’s Fatality Analysis Reporting System (FARS) file FARS2024NationalCSV.zip, accident.csv, one row per crash on a public road in which someone died within 30 days. Deaths are the FATALS field. Counties are the FARS STATE and COUNTY codes joined to Census FIPS codes.
  • Population is the Census Bureau’s July 1 estimate for the same year, county totals, Vintage 2025. Rate per 100,000 = crashes ÷ population × 100,000.
  • The five-year average is total crashes over the years with both inputs ÷ total population over those years × 100,000, the rolling form in 23 CFR 490.207.
  • What it cannot say. FARS has no injury-only or property-damage crashes, no congestion, and nothing about any one driver, trip or road’s risk. A crash is counted where it happened, not where the people lived. Rates are not ranked here; comparing two places means comparing both sets of inputs.

Informational only, not professional advice. Last reviewed: October 2026. Data snapshot built 2026-10-28.