Counties in Illinois by traffic fatalities

Cook County had the highest traffic fatalities of 102 counties in 2020, at 371. Wabash County had the lowest, at 0. The median was 5 and the figure for Illinois was 1,193. Source: National Highway Traffic Safety Administration.

Highest371Cook County

Lowest0Wabash County

Median5102 counties

Illinois1,193History

Top 40 counties, 2020

count. Source: NHTSA, Fatality Analysis Reporting System (FARS), national CSV files: people killed (sum of FATALS in accident.csv) by county of the crash. Retrieved 2026-10-12.

Full ranking

Rank	Counties	2020 count	Change on 2019
1	Cook County	371	+25.8%
2	Will County	61	+13%
3	Lake County	50	+16.3%
4	DuPage County	49	+28.9%
5	Madison County	32	-11.1%
5	St. Clair County	32	+23.1%
7	Peoria County	26	+136.4%
8	Winnebago County	25	-13.8%
9	LaSalle County	23	+130%
9	McHenry County	23	+9.5%
11	Kane County	22	-31.3%
11	Macon County	22	+100%
13	Sangamon County	18	+20%
14	Bureau County	15	+275%
14	Champaign County	15	+150%
14	Kankakee County	15	-16.7%
17	Grundy County	13	0%
17	Rock Island County	13	+62.5%
19	Woodford County	12	+500%
20	Adams County	11	+1,000%
20	Coles County	11	+450%
20	McLean County	11	-21.4%
20	Williamson County	11	+57.1%
24	DeKalb County	9	+50%
24	Iroquois County	9	-18.2%
24	Livingston County	9	-18.2%
24	Vermilion County	9	-18.2%
28	Jackson County	8	-27.3%
28	Jefferson County	8	0%
28	Whiteside County	8	+166.7%
31	Christian County	7	+250%
31	Clark County	7	+250%
31	Fayette County	7	+133.3%
31	Fulton County	7	+16.7%
31	Kendall County	7	0%
31	Macoupin County	7	+75%
31	Pike County	7	+40%
31	Tazewell County	7	-36.4%
39	Clinton County	6	+200%
39	Douglas County	6	+100%
39	Effingham County	6	-53.8%
39	Jo Daviess County	6	+200%
39	Lawrence County	6	+200%
39	Logan County	6	+200%
39	Marion County	6	-25%
39	Randolph County	6	+100%
39	Washington County	6	+50%
48	Boone County	5	+400%
48	Ford County	5	+25%
48	Franklin County	5	-58.3%
48	Hancock County	5	+400%
48	Knox County	5	+66.7%
48	Montgomery County	5	-61.5%
48	Ogle County	5	-44.4%
48	Richland County	5	+400%
48	Schuyler County	5	+400%
57	Bond County	4	+33.3%
57	Jersey County	4	-42.9%
57	Johnson County	4	n/a
57	Lee County	4	+33.3%
57	Mason County	4	+33.3%
57	Massac County	4	0%
57	Morgan County	4	-42.9%
57	Piatt County	4	+300%
57	Saline County	4	+33.3%
57	Stark County	4	+300%
57	Wayne County	4	+300%
68	Alexander County	3	-40%
68	Carroll County	3	+50%
68	Clay County	3	+50%
68	Crawford County	3	+200%
68	Edgar County	3	+50%
68	Pope County	3	+200%
68	Shelby County	3	-57.1%
68	Warren County	3	+50%
76	De Witt County	2	0%
76	Gallatin County	2	-33.3%
76	Henry County	2	-75%
76	Marshall County	2	-50%
76	McDonough County	2	-66.7%
76	Menard County	2	0%
76	Moultrie County	2	0%
76	Putnam County	2	-33.3%
76	Stephenson County	2	-77.8%
76	White County	2	-50%
86	Cumberland County	1	-50%
86	Greene County	1	-50%
86	Hamilton County	1	0%
86	Hardin County	1	-50%
86	Monroe County	1	-66.7%
86	Perry County	1	-75%
86	Pulaski County	1	0%
86	Scott County	1	-50%
86	Union County	1	-66.7%
95	Brown County	0	n/a
95	Calhoun County	0	-100%
95	Cass County	0	-100%
95	Edwards County	0	n/a
95	Henderson County	0	-100%
95	Jasper County	0	-100%
95	Mercer County	0	n/a
95	Wabash County	0	-100%

Other periods

About this ranking

People killed in motor vehicle traffic crashes during the year. FARS counts people who die within 30 days of a crash involving a motor vehicle travelling on a public road, by the place of the crash, not of residence.

A police-based count of deaths. It differs from death certificate counts (CDC) and from the WHO road traffic death rate (road_traffic_death_rate), which is modelled for international comparison.

Every value in the ranking comes from the same publisher and the same period, so the counties are compared on one definition. Equal values share a rank.

How to cite

National Highway Traffic Safety Administration (NHTSA), Fatality Analysis Reporting System. Fatality Analysis Reporting System (FARS), national CSV files: people killed (sum of FATALS in accident.csv) by county of the crash. https://static.nhtsa.gov/nhtsa/downloads/FARS/2020/National/FARS2020NationalCSV.zip. Retrieved 2026-10-12.

Citation styles

The publisher is the author. Invokely is named only as the place the figures were read, where a style asks for it.

APA 7

National Highway Traffic Safety Administration. (2026). Fatality Analysis Reporting System (FARS), national CSV files: people killed (sum of FATALS in accident.csv) by county of the crash (Counties in Illinois by traffic fatalities, 2020) [Data set]. Retrieved October 12, 2026, from https://static.nhtsa.gov/nhtsa/downloads/FARS/2020/National/FARS2020NationalCSV.zip

MLA 9

Fatality Analysis Reporting System (FARS), national CSV files: people killed (sum of FATALS in accident.csv) by county of the crash, Counties in Illinois by traffic fatalities, 2020. National Highway Traffic Safety Administration, 24 June 2026, https://static.nhtsa.gov/nhtsa/downloads/FARS/2020/National/FARS2020NationalCSV.zip. Invokely, https://invokely.ai/rankings/traffic-fatalities/illinois-counties?period=2020. Accessed 12 Oct. 2026.

Chicago (author-date)

National Highway Traffic Safety Administration. 2026. Fatality Analysis Reporting System (FARS), national CSV files: people killed (sum of FATALS in accident.csv) by county of the crash. Counties in Illinois by traffic fatalities, 2020. Dataset. Accessed October 12, 2026. https://static.nhtsa.gov/nhtsa/downloads/FARS/2020/National/FARS2020NationalCSV.zip. Also distributed by Invokely, https://invokely.ai/rankings/traffic-fatalities/illinois-counties?period=2020.

Harvard

National Highway Traffic Safety Administration (2026) Fatality Analysis Reporting System (FARS), national CSV files: people killed (sum of FATALS in accident.csv) by county of the crash, Counties in Illinois by traffic fatalities, 2020 [Dataset]. Available at: https://static.nhtsa.gov/nhtsa/downloads/FARS/2020/National/FARS2020NationalCSV.zip, via Invokely: https://invokely.ai/rankings/traffic-fatalities/illinois-counties?period=2020 (Accessed: 12 October 2026).

BibTeX

@misc{national_counties_in_illinois_by_2020,
  author = {{National Highway Traffic Safety Administration}},
  title = {{Fatality Analysis Reporting System (FARS), national CSV files: people killed (sum of FATALS in accident.csv) by county of the crash: Counties in Illinois by traffic fatalities, 2020}},
  year = {2026},
  howpublished = {Data set},
  url = {https://static.nhtsa.gov/nhtsa/downloads/FARS/2020/National/FARS2020NationalCSV.zip},
  urldate = {2026-10-12},
  note = {Accessed via Invokely, https://invokely.ai/rankings/traffic-fatalities/illinois-counties?period=2020. Publisher attribution: National Highway Traffic Safety Administration (NHTSA), Fatality Analysis Reporting System. Fatality Analysis Reporting System (FARS), national CSV files: people killed (sum of FATALS in accident.csv) by county of the crash. https://static.nhtsa.gov/nhtsa/downloads/FARS/2020/National/FARS2020NationalCSV.zip. Retrieved 2026-10-12.},
}

RIS

TY  - DATA
AU  - National Highway Traffic Safety Administration
TI  - Fatality Analysis Reporting System (FARS), national CSV files: people killed (sum of FATALS in accident.csv) by county of the crash: Counties in Illinois by traffic fatalities, 2020
PY  - 2026
DA  - 2026/06/24
PB  - National Highway Traffic Safety Administration
DB  - Invokely
UR  - https://static.nhtsa.gov/nhtsa/downloads/FARS/2020/National/FARS2020NationalCSV.zip
L2  - https://invokely.ai/rankings/traffic-fatalities/illinois-counties?period=2020
Y2  - 2026/10/12
N1  - Accessed via Invokely, https://invokely.ai/rankings/traffic-fatalities/illinois-counties?period=2020.
N1  - Publisher attribution: National Highway Traffic Safety Administration (NHTSA), Fatality Analysis Reporting System. Fatality Analysis Reporting System (FARS), national CSV files: people killed (sum of FATALS in accident.csv) by county of the crash. https://static.nhtsa.gov/nhtsa/downloads/FARS/2020/National/FARS2020NationalCSV.zip. Retrieved 2026-10-12.
ER  -

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Questions

Which county has the highest traffic fatalities?

Cook County, with 371 in 2020, according to National Highway Traffic Safety Administration.

Which county has the lowest traffic fatalities?

Wabash County, with 0 in 2020.

Where does this ranking come from?

Every value comes from one source and one period, so the places are comparable: National Highway Traffic Safety Administration, Fatality Analysis Reporting System (FARS), national CSV files: people killed (sum of FATALS in accident.csv) by county of the crash. Retrieved 2026-10-12.