Counties in Wisconsin by traffic fatalities

Milwaukee County had the highest traffic fatalities of 72 counties in 2020, at 100. Vilas County had the lowest, at 1. The median was 6 and the figure for Wisconsin was 612. Source: National Highway Traffic Safety Administration.

Highest100Milwaukee County

Lowest1Vilas County

Median672 counties

Wisconsin612History

Map of counties, 2020

Under 3
3 to 4
4 to 6
6 to 8
8 to 11
11 and over

count, 2020. Source: NHTSA, Fatality Analysis Reporting System (FARS), national CSV files: people killed (sum of FATALS in accident.csv) by county of the crash. Boundaries: U.S. Census Bureau cartographic boundary files.

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	Milwaukee County	100	+35.1%
2	Dane County	32	+28%
3	Rock County	25	+8.7%
4	Racine County	23	+35.3%
5	Kenosha County	22	+46.7%
6	Brown County	17	+88.9%
6	Wood County	17	+54.5%
8	Polk County	16	+45.5%
8	Waukesha County	16	-11.1%
10	Columbia County	14	+55.6%
11	Walworth County	12	-20%
12	Eau Claire County	11	+450%
12	Oconto County	11	+22.2%
12	Sawyer County	11	+450%
15	Manitowoc County	10	-33.3%
15	Winnebago County	10	-9.1%
17	Chippewa County	9	+50%
17	Fond du Lac County	9	+12.5%
17	Jefferson County	9	+50%
17	Outagamie County	9	-43.8%
17	Sauk County	9	0%
17	St. Croix County	9	-30.8%
23	Marathon County	8	-46.7%
23	Oneida County	8	+14.3%
23	Pierce County	8	+60%
23	Waupaca County	8	-27.3%
27	Clark County	7	+75%
27	Dodge County	7	-46.2%
27	Juneau County	7	-12.5%
27	Lincoln County	7	+16.7%
27	Waushara County	7	+250%
32	Adams County	6	0%
32	Calumet County	6	+500%
32	Dunn County	6	+20%
32	Ozaukee County	6	-45.5%
32	Trempealeau County	6	+500%
37	Barron County	5	-44.4%
37	Bayfield County	5	+400%
37	Douglas County	5	+25%
37	Florence County	5	n/a
37	Iowa County	5	-28.6%
37	Monroe County	5	-16.7%
37	Shawano County	5	0%
44	Buffalo County	4	+100%
44	Crawford County	4	+100%
44	Grant County	4	-63.6%
44	Kewaunee County	4	+300%
44	La Crosse County	4	-20%
44	Marquette County	4	+300%
44	Pepin County	4	n/a
44	Portage County	4	-20%
44	Sheboygan County	4	-63.6%
44	Washington County	4	-66.7%
54	Ashland County	3	+200%
54	Burnett County	3	-66.7%
54	Green County	3	-25%
54	Green Lake County	3	0%
54	Langlade County	3	0%
54	Marinette County	3	-57.1%
54	Price County	3	0%
54	Rusk County	3	-40%
62	Door County	2	-66.7%
62	Richland County	2	n/a
62	Vernon County	2	+100%
62	Washburn County	2	-50%
66	Forest County	1	0%
66	Iron County	1	-80%
66	Jackson County	1	-75%
66	Lafayette County	1	0%
66	Menominee County	1	-50%
66	Taylor County	1	-66.7%
66	Vilas County	1	-75%

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 Wisconsin 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 Wisconsin 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/wisconsin-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 Wisconsin 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/wisconsin-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 Wisconsin 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/wisconsin-counties?period=2020 (Accessed: 12 October 2026).

BibTeX

@misc{national_counties_in_wisconsin_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 Wisconsin 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/wisconsin-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 Wisconsin 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/wisconsin-counties?period=2020
Y2  - 2026/10/12
N1  - Accessed via Invokely, https://invokely.ai/rankings/traffic-fatalities/wisconsin-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?

Milwaukee County, with 100 in 2020, according to National Highway Traffic Safety Administration.

Which county has the lowest traffic fatalities?

Vilas County, with 1 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.