Counties in Arizona by traffic fatalities

Maricopa County had the highest traffic fatalities of 15 counties in 2021, at 606. Greenlee County had the lowest, at 1. The median was 28 and the figure for Arizona was 1,192. Source: National Highway Traffic Safety Administration.

Highest606Maricopa County

Lowest1Greenlee County

Median2815 counties

Arizona1,192History

Map of counties, 2021

Under 20
20 to 28
28 to 42
42 to 60
60 and over

count, 2021. 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, 2021

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	2021 count	Change on 2020
1	Maricopa County	606	+23.2%
2	Pima County	161	-2.4%
3	Mohave County	70	+27.3%
4	Pinal County	57	+1.8%
4	Yavapai County	57	-9.5%
6	Coconino County	46	+7%
7	Navajo County	40	+5.3%
8	Cochise County	28	+21.7%
8	Yuma County	28	-6.7%
10	Gila County	27	+12.5%
11	Apache County	25	+8.7%
12	Graham County	20	+42.9%
13	La Paz County	18	+5.9%
14	Santa Cruz County	8	+14.3%
15	Greenlee County	1	n/a

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/2021/National/FARS2021NationalCSV.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 Arizona by traffic fatalities, 2021) [Data set]. Retrieved October 12, 2026, from https://static.nhtsa.gov/nhtsa/downloads/FARS/2021/National/FARS2021NationalCSV.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 Arizona by traffic fatalities, 2021. National Highway Traffic Safety Administration, 24 June 2026, https://static.nhtsa.gov/nhtsa/downloads/FARS/2021/National/FARS2021NationalCSV.zip. Invokely, https://invokely.ai/rankings/traffic-fatalities/arizona-counties?period=2021. 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 Arizona by traffic fatalities, 2021. Dataset. Accessed October 12, 2026. https://static.nhtsa.gov/nhtsa/downloads/FARS/2021/National/FARS2021NationalCSV.zip. Also distributed by Invokely, https://invokely.ai/rankings/traffic-fatalities/arizona-counties?period=2021.

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 Arizona by traffic fatalities, 2021 [Dataset]. Available at: https://static.nhtsa.gov/nhtsa/downloads/FARS/2021/National/FARS2021NationalCSV.zip, via Invokely: https://invokely.ai/rankings/traffic-fatalities/arizona-counties?period=2021 (Accessed: 12 October 2026).

BibTeX

@misc{national_counties_in_arizona_by_2021,
  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 Arizona by traffic fatalities, 2021}},
  year = {2026},
  howpublished = {Data set},
  url = {https://static.nhtsa.gov/nhtsa/downloads/FARS/2021/National/FARS2021NationalCSV.zip},
  urldate = {2026-10-12},
  note = {Accessed via Invokely, https://invokely.ai/rankings/traffic-fatalities/arizona-counties?period=2021. 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/2021/National/FARS2021NationalCSV.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 Arizona by traffic fatalities, 2021
PY  - 2026
DA  - 2026/06/24
PB  - National Highway Traffic Safety Administration
DB  - Invokely
UR  - https://static.nhtsa.gov/nhtsa/downloads/FARS/2021/National/FARS2021NationalCSV.zip
L2  - https://invokely.ai/rankings/traffic-fatalities/arizona-counties?period=2021
Y2  - 2026/10/12
N1  - Accessed via Invokely, https://invokely.ai/rankings/traffic-fatalities/arizona-counties?period=2021.
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/2021/National/FARS2021NationalCSV.zip. Retrieved 2026-10-12.
ER  -

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Questions

Which county has the highest traffic fatalities?

Maricopa County, with 606 in 2021, according to National Highway Traffic Safety Administration.

Which county has the lowest traffic fatalities?

Greenlee County, with 1 in 2021.

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.