Counties in California by traffic fatalities, 2024

Los Angeles County had the highest traffic fatalities of 58 counties in 2024, at 778. Sierra County had the lowest, at 1. The median was 26 and the figure for California was 3,876. Source: National Highway Traffic Safety Administration.

Highest778Los Angeles County

Lowest1Sierra County

Median2658 counties

California3,876History

Map of counties, 2024

Under 8
8 to 13
13 to 26
26 to 40
40 to 100
100 and over

count, 2024. 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, 2024

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	2024 count	Change on 2023
1	Los Angeles County Provisional	778	-7.4%
2	San Bernardino County Provisional	350	-9.3%
3	San Diego County Provisional	303	+5.2%
4	Riverside County Provisional	289	-13.7%
5	Orange County Provisional	199	-13.9%
6	Kern County Provisional	194	+6%
7	Fresno County Provisional	169	+11.2%
8	Sacramento County Provisional	156	-25.4%
9	San Joaquin County Provisional	139	+3%
10	Alameda County Provisional	100	+1%
10	Santa Clara County Provisional	100	-20%
12	Stanislaus County Provisional	88	-1.1%
13	Tulare County Provisional	72	-12.2%
14	Contra Costa County Provisional	66	-32.7%
15	Ventura County Provisional	58	-19.4%
16	San Francisco County Provisional	48	+37.1%
17	Merced County Provisional	46	-22%
18	Monterey County Provisional	45	+15.4%
19	Solano County Provisional	41	-6.8%
20	Placer County Provisional	40	-7%
21	Santa Barbara County Provisional	38	-5%
22	Butte County Provisional	34	-2.9%
23	Madera County Provisional	33	+17.9%
23	Shasta County Provisional	33	+50%
25	Kings County Provisional	30	-21.1%
25	San Luis Obispo County Provisional	30	+50%
25	San Mateo County Provisional	30	-21.1%
28	Sonoma County Provisional	29	0%
29	Humboldt County Provisional	26	0%
29	Imperial County Provisional	26	+52.9%
31	Lake County Provisional	25	+31.6%
32	Yolo County Provisional	21	-12.5%
33	Sutter County Provisional	20	-13%
34	El Dorado County Provisional	17	-5.6%
35	Santa Cruz County Provisional	16	-36%
36	Inyo County Provisional	15	+114.3%
37	Mendocino County Provisional	14	-36.4%
37	Yuba County Provisional	14	-33.3%
39	Calaveras County Provisional	13	-7.1%
39	Tehama County Provisional	13	-7.1%
41	Siskiyou County Provisional	12	-33.3%
42	Marin County Provisional	11	-15.4%
42	Napa County Provisional	11	-38.9%
42	San Benito County Provisional	11	+57.1%
42	Tuolumne County Provisional	11	-42.1%
46	Colusa County Provisional	8	+60%
46	Glenn County Provisional	8	-38.5%
46	Nevada County Provisional	8	-42.9%
49	Amador County Provisional	7	-36.4%
50	Del Norte County Provisional	6	+20%
50	Mono County Provisional	6	+500%
50	Trinity County Provisional	6	-25%
53	Modoc County Provisional	4	+100%
54	Lassen County Provisional	3	-57.1%
55	Mariposa County Provisional	2	-33.3%
55	Plumas County Provisional	2	n/a
57	Alpine County Provisional	1	n/a
57	Sierra County Provisional	1	0%

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/2024/National/FARS2024NationalCSV.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 California by traffic fatalities, 2024) [Data set]. Retrieved October 12, 2026, from https://static.nhtsa.gov/nhtsa/downloads/FARS/2024/National/FARS2024NationalCSV.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 California by traffic fatalities, 2024. National Highway Traffic Safety Administration, 24 June 2026, https://static.nhtsa.gov/nhtsa/downloads/FARS/2024/National/FARS2024NationalCSV.zip. Invokely, https://invokely.ai/rankings/traffic-fatalities/california-counties. 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 California by traffic fatalities, 2024. Dataset. Accessed October 12, 2026. https://static.nhtsa.gov/nhtsa/downloads/FARS/2024/National/FARS2024NationalCSV.zip. Also distributed by Invokely, https://invokely.ai/rankings/traffic-fatalities/california-counties.

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 California by traffic fatalities, 2024 [Dataset]. Available at: https://static.nhtsa.gov/nhtsa/downloads/FARS/2024/National/FARS2024NationalCSV.zip, via Invokely: https://invokely.ai/rankings/traffic-fatalities/california-counties (Accessed: 12 October 2026).

BibTeX

@misc{national_counties_in_california_by_2024,
  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 California by traffic fatalities, 2024}},
  year = {2026},
  howpublished = {Data set},
  url = {https://static.nhtsa.gov/nhtsa/downloads/FARS/2024/National/FARS2024NationalCSV.zip},
  urldate = {2026-10-12},
  note = {Accessed via Invokely, https://invokely.ai/rankings/traffic-fatalities/california-counties. 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/2024/National/FARS2024NationalCSV.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 California by traffic fatalities, 2024
PY  - 2026
DA  - 2026/06/24
PB  - National Highway Traffic Safety Administration
DB  - Invokely
UR  - https://static.nhtsa.gov/nhtsa/downloads/FARS/2024/National/FARS2024NationalCSV.zip
L2  - https://invokely.ai/rankings/traffic-fatalities/california-counties
Y2  - 2026/10/12
N1  - Accessed via Invokely, https://invokely.ai/rankings/traffic-fatalities/california-counties.
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/2024/National/FARS2024NationalCSV.zip. Retrieved 2026-10-12.
ER  -

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Rank Counties in California by traffic fatalities using official data, and cite the source.

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Questions

Which county has the highest traffic fatalities?

Los Angeles County, with 778 in 2024, according to National Highway Traffic Safety Administration.

Which county has the lowest traffic fatalities?

Sierra County, with 1 in 2024.

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.