Counties in Wyoming by traffic fatalities

Natrona County had the highest traffic fatalities of 23 counties in 2015, at 19. Washakie County had the lowest, at 1. The median was 5 and the figure for Wyoming was 145. Source: National Highway Traffic Safety Administration.

Highest19Natrona County

Lowest1Washakie County

Median523 counties

Wyoming145History

Map of counties, 2015

Under 2
2 to 4
4 to 5
5 to 10
10 and over

count, 2015. 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.

All counties, 2015

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	2015 count	Change on 2014
1	Natrona County	19	+46.2%
2	Fremont County	17	+41.7%
3	Laramie County	13	-38.1%
4	Sweetwater County	11	-15.4%
5	Converse County	10	+42.9%
6	Campbell County	9	-43.8%
7	Albany County	8	+14.3%
7	Park County	8	+166.7%
9	Carbon County	7	-30%
10	Big Horn County	5	-37.5%
10	Johnson County	5	+25%
10	Lincoln County	5	+66.7%
10	Sheridan County	5	+150%
14	Platte County	4	-42.9%
15	Hot Springs County	3	+50%
15	Uinta County	3	0%
17	Crook County	2	0%
17	Goshen County	2	0%
17	Niobrara County	2	-60%
17	Sublette County	2	-50%
17	Teton County	2	0%
17	Weston County	2	0%
23	Washakie County	1	-50%

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/2015/National/FARS2015NationalCSV.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 Wyoming by traffic fatalities, 2015) [Data set]. Retrieved October 12, 2026, from https://static.nhtsa.gov/nhtsa/downloads/FARS/2015/National/FARS2015NationalCSV.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 Wyoming by traffic fatalities, 2015. National Highway Traffic Safety Administration, 24 June 2026, https://static.nhtsa.gov/nhtsa/downloads/FARS/2015/National/FARS2015NationalCSV.zip. Invokely, https://invokely.ai/rankings/traffic-fatalities/wyoming-counties?period=2015. 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 Wyoming by traffic fatalities, 2015. Dataset. Accessed October 12, 2026. https://static.nhtsa.gov/nhtsa/downloads/FARS/2015/National/FARS2015NationalCSV.zip. Also distributed by Invokely, https://invokely.ai/rankings/traffic-fatalities/wyoming-counties?period=2015.

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 Wyoming by traffic fatalities, 2015 [Dataset]. Available at: https://static.nhtsa.gov/nhtsa/downloads/FARS/2015/National/FARS2015NationalCSV.zip, via Invokely: https://invokely.ai/rankings/traffic-fatalities/wyoming-counties?period=2015 (Accessed: 12 October 2026).

BibTeX

@misc{national_counties_in_wyoming_by_2015,
  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 Wyoming by traffic fatalities, 2015}},
  year = {2026},
  howpublished = {Data set},
  url = {https://static.nhtsa.gov/nhtsa/downloads/FARS/2015/National/FARS2015NationalCSV.zip},
  urldate = {2026-10-12},
  note = {Accessed via Invokely, https://invokely.ai/rankings/traffic-fatalities/wyoming-counties?period=2015. 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/2015/National/FARS2015NationalCSV.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 Wyoming by traffic fatalities, 2015
PY  - 2026
DA  - 2026/06/24
PB  - National Highway Traffic Safety Administration
DB  - Invokely
UR  - https://static.nhtsa.gov/nhtsa/downloads/FARS/2015/National/FARS2015NationalCSV.zip
L2  - https://invokely.ai/rankings/traffic-fatalities/wyoming-counties?period=2015
Y2  - 2026/10/12
N1  - Accessed via Invokely, https://invokely.ai/rankings/traffic-fatalities/wyoming-counties?period=2015.
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/2015/National/FARS2015NationalCSV.zip. Retrieved 2026-10-12.
ER  -

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Questions

Which county has the highest traffic fatalities?

Natrona County, with 19 in 2015, according to National Highway Traffic Safety Administration.

Which county has the lowest traffic fatalities?

Washakie County, with 1 in 2015.

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.