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Edition: FARS 2024, annual fileNHTSA released it on Release dates

Grundy County, Illinois: fatal crash statistics

FARS records 9 deaths in 9 fatal crashes in Grundy County in 2024.

FARS records 88 deaths in 83 fatal crashes in the county from 2015 to 2024.

From 2015 to 2024 the rate is 16.9 deaths for each 100,000 residents in a year.

The rate of Illinois in the same years is 9.0.

By deaths from 2015 to 2024, Grundy County was number 25 of 102 counties of Illinois.

Deaths in Grundy County rose by 1.1% between the ten years 2005 to 2014 (87) and the ten years 2015 to 2024 (88).

In the counties of Illinois the deaths rose by 8.4% between the same years.

From 2015 to 2024, 53.0% of the fatal crashes in Grundy County with a known setting were rural, against 33.6% in Illinois.

To qualify as a FARS case, the crash had to involve a motor vehicle traveling on a trafficway customarily open to the public and must have resulted in the death of a motorist or a non-motorist within 30 days of the crash.

The set of first files, known as the Annual Report File (ARF), is released following the crash year. The ARF is replaced about a year later with a final file, which contains additional cases or updates to cases that had become available after the ARF was released.

NHTSA's words. Source: NHTSA, Fatality Analysis Reporting System Analytical User's Manual, 1975-2024 (DOT HS 813 794, April 2026), copied on .

This page rests on the FARS 2024 annual file. NHTSA released it on . NHTSA can revise the counts in the final file. Release dates

Figure 1.Deaths in Grundy County by year, 2015 to 2024

Table 1 has the numbers. Go to the table

Since the last update: no figure of this county has a change on record.

Deaths and fatal crashes by year

Table 1.Grundy County: deaths and fatal crashes by year, 2015 to 2024
YearDeathsFatal crashesCrashes with a driver recorded as drinking
2024991 or 2
2023774
2022650
20211091 or 2
202013121 or 2
201913135
20181094
2017443
2016983
2015771 or 2
2015 to 2024888326
Each year from 1975
Figure 2.Deaths in Grundy County by year, 1975 to 2024

Tallest column: 19 (1998)2024: 9

The columns with a stronger shade are the years 2015 to 2024.

Table 2.Grundy County: deaths and fatal crashes by year, 1975 to 2024
YearDeathsFatal crashes
202499
202377
202265
2021109
20201312
20191313
2018109
201744
201698
201577
201487
201388
201266
201155
201088
20091010
20081410
20071212
20061 or 21 or 2
20051413
20041713
20031010
20021111
200143
20001010
19991210
19981916
199787
199676
19951210
1994119
199396
199296
199199
1990139
19891412
19881515
19871311
198688
198544
1984107
198365
19821110
198187
19801212
197988
19781514
197798
19761412
19751510

Note: a count of 1 or 2 is written "1 or 2". A death is in FARS when it occurs in 30 days or less after the crash.

Rate for each 100,000 residents

Table 3.Grundy County beside Illinois and the United States: deaths for each 100,000 residents
PeriodGrundy CountyIllinoisUnited States
202416.89.311.5
2015 to 2024, in a year16.99.011.8

Note: the rate divides the deaths in the county by its residents. Persons who do not live in the county are in the deaths, not in the residents.

Population: Census Bureau estimates, vintage 2025. Grundy County had 53,721 residents in 2024.

Factors that NHTSA records

Table 4.Grundy County: counts by recorded factor, 2015 to 2024
FactorCountCounted amongShareShare in Illinois
A driver recorded as drinkingof 83 fatal crashes2683 fatal crashes27.2%
A speeding-related driverof 83 fatal crashes3483 fatal crashes36.5%
No restraint usedof 47 occupant deaths with restraint use known2347 occupant deathswith restraint use known46.8%
Pedestriansof 88 deaths1088 deaths15.5%
Bicyclistsof 88 deaths1 or 288 deaths2.5%
Motorcyclistsof 88 deaths1888 deaths13.3%
On a rural roadof 83 fatal crashes with the condition reported4483 fatal crasheswith the condition reported33.6%
In the darkof 81 fatal crashes with the condition reported3281 fatal crasheswith the condition reported48.7%

Note: FARS records a driver as drinking when police reported alcohol involvement or a test of the driver was positive for alcohol. It is not NHTSA's alcohol-impaired measure, which uses a blood alcohol concentration of .08 g/dL or higher. One crash can be in two or more rows. NHTSA's definitions

Note that alcohol data is often missing. For that reason, this data element may under-count the actual number of drinking drivers.

NHTSA's words. Source: NHTSA, Fatality Analysis Reporting System Analytical User's Manual, 1975-2024 (DOT HS 813 794, April 2026), copied on .

Weekday, time and road class

Table 5.Grundy County: fatal crashes by weekday and time of day, 2015 to 2024
WeekdayMidnight to 6 a.m.6 a.m. to noonNoon to 6 p.m.6 p.m. to midnightAll
Sunday538420
Monday31 or 23512
Tuesday1 or 21 or 21 or 21 or 27
Wednesday00437
Thursday1 or 2531 or 212
Friday1 or 2091 or 213
Saturday1 or 243312
All days1614322183

Note: a cell with a stronger shade has a larger count. The table has the fatal crashes with a known hour and weekday.

Table 6.Grundy County: fatal crashes by road function class, 2015 to 2024
Road function classFatal crashesShareShare in Illinois
Interstate2934.9%14.2%
Other freeways and expressways00.0%0.7%
Other principal arterial1012.0%29.1%
Minor arterial1416.9%24.5%
Major collector1012.0%17.0%
Minor collector33.6%2.0%
Local1720.5%12.5%
Not reported0n/an/a

Note: the classes are those of the Federal Highway Administration. The shares are of the crashes with a reported class. Road function classes

Light condition and weather
Table 7.Grundy County: fatal crashes by light condition, 2015 to 2024
Light conditionFatal crashes
Daylight46
Dark, not lighted24
Dark, lighted3
Dawn1 or 2
Dusk1 or 2
Dark, lighting unknown5
Other or unknown1 or 2
Table 8.Grundy County: fatal crashes by weather, 2015 to 2024
WeatherFatal crashes
Clear71
Cloudy1 or 2
Rain5
Snow, sleet or freezing rain0
Fog, smog or smoke1 or 2
Crosswinds or blowing sand/snow0
Other or not reported3

Routes in the county

Table 9.Signed routes in Grundy County that have a page: fatal crashes, 2015 to 2024
RouteTypeIn GrundyIn all of Illinois
Interstate 55Interstate9263
Interstate 80Interstate20133
State Route 47State highway1050
State Route 53State highway1 or 246
US Route 6US highway775

Note: the table has each route with a page that has a fatal crash in the county, in name order. Local streets and county roads have no page. Their crashes are in the county totals. All routes in Illinois

Adjacent counties

These lists are for navigation. They are in name order.

Figure 3.Grundy County on the county map of Illinois

Deaths for each 100,000 residents in a year, 2015 to 2024

  • Fewer than 1016 counties
  • 10 to 14.926 counties
  • 15 to 19.927 counties
  • 20 to 29.928 counties
  • 30 or more5 counties
  • Grundy County: 16.9

The limits of the classes are the same for every state. A county with few residents can show a high rate from few deaths. A class is not a judgement of a county. The full map and the table of counties of Illinois

Table 10.Counties that share a boundary line with Grundy County
CountyStateDeaths, 2024Deaths, 2015 to 2024For each 100,000 residents in a year
Kankakee CountyIllinois2316615.3
Kendall CountyIllinois12916.9
LaSalle CountyIllinois2918617.1
Livingston CountyIllinois88122.7
Will CountyIllinois585638.1

Source of the list: Census Bureau county adjacency file, 2026 edition.

Counties of similar population

These counties of Illinois have a population nearest to that of Grundy County. The list is for navigation and is in name order. The number is the deaths from 2015 to 2024.

Official channels

These links go to the sites of the agencies. They were checked on .

Cite this page

Fatal Roads. Grundy County, Illinois: fatal crash statistics. https://fatalroads.com/county/il/grundy/. Source: National Highway Traffic Safety Administration, Fatality Analysis Reporting System, FARS 2024 annual file. Data to .

The address of this page does not change.

Source of the figures

Counts: National Highway Traffic Safety Administration, Fatality Analysis Reporting System, national files of 1975 to 2024. The factors use the vehicle and person files from 2015. Residents: Census Bureau, Population Estimates Program, vintage 2025. Map: Census Bureau cartographic boundary file, 2021 edition. Data to . The figures are totals. No page of this site is about one crash or one person.

How the figures are made. Data sources and licences. Corrections.

Questions

How many deaths did FARS record in Grundy in the ten years before 2015?

FARS records 87 deaths in Grundy County from 2005 to 2014. It records 88 deaths from 2015 to 2024.

What was the rate of Grundy in 2024?

The rate of Grundy County in 2024 was 16.8 deaths for each 100,000 residents. The rate of Illinois was 9.3. The rate of the United States was 11.5.

How many fatal crashes in Grundy had a driver recorded as drinking?

FARS records a driver as drinking in 26 of 83 fatal crashes from 2015 to 2024. This count is not NHTSA's alcohol-impaired measure. NHTSA says that alcohol data is often missing, so the count may be too low.

How many fatal crashes did FARS record on signed routes in Grundy?

5 signed routes in the county have a page. FARS records 47 fatal crashes on them in the county from 2015 to 2024. The table of routes on this page gives the count for each route.