Lassen County, California: fatal crash statistics

Counties of California by year (CSV)Cite this page

FARS records 3 deaths in 1 or 2 fatal crashes in Lassen County in 2024.

FARS records 90 deaths in 75 fatal crashes in the county from 2015 to 2024.

From 2015 to 2024 the rate is 29.4 deaths for each 100,000 residents in a year.

The rate of California in the same years is 10.1.

By deaths from 2015 to 2024, Lassen County was number 47 of 58 counties of California.

Deaths in Lassen County rose by 5.9% between the ten years 2005 to 2014 (85) and the ten years 2015 to 2024 (90).

In the counties of California the deaths rose by 17.5% between the same years.

From 2015 to 2024, 90.7% of the fatal crashes in Lassen County with a known setting were rural, against 29.9% in California.

To qualify as a FARS case, the crash had to involve a motor vehicle traveling on a trafficway customarily open to the public and must have resulted in the death of a motorist or a non-motorist within 30 days of the crash.
The set of first files, known as the Annual Report File (ARF), is released following the crash year. The ARF is replaced about a year later with a final file, which contains additional cases or updates to cases that had become available after the ARF was released.
NHTSA's words. Source: NHTSA, Fatality Analysis Reporting System Analytical User's Manual, 1975-2024 (DOT HS 813 794, April 2026), copied on 2 Oct 2026.

This page rests on the FARS 2024 annual file. NHTSA released it on 1 Apr 2026. NHTSA can revise the counts in the final file. Release dates

Figure 1.Deaths in Lassen County by year, 2015 to 2024

Table 1 has the numbers. Go to the table

Since the last update: no figure of this county has a change on record.

Deaths and fatal crashes by year

Table 1.Lassen County: deaths and fatal crashes by year, 2015 to 2024
Year	Deaths	Fatal crashes	Crashes with a driver recorded as drinking
2024	3	1 or 2	0
2023	7	6	1 or 2
2022	7	7	3
2021	17	14	4
2020	11	8	3
2019	6	6	0
2018	12	10	3
2017	8	8	1 or 2
2016	10	7	3
2015	9	7	3
2015 to 2024	90	75	22

Each year from 1975

Figure 2.Deaths in Lassen County by year, 1975 to 2024

Tallest column: 25 (1981)2024: 3

The columns with a stronger shade are the years 2015 to 2024.

Table 2.Lassen County: deaths and fatal crashes by year, 1975 to 2024
Year	Deaths	Fatal crashes
2024	3	1 or 2
2023	7	6
2022	7	7
2021	17	14
2020	11	8
2019	6	6
2018	12	10
2017	8	8
2016	10	7
2015	9	7
2014	5	5
2013	9	7
2012	9	8
2011	9	7
2010	9	9
2009	3	3
2008	9	8
2007	6	6
2006	11	9
2005	15	11
2004	21	18
2003	12	11
2002	13	11
2001	10	9
2000	4	3
1999	10	8
1998	15	13
1997	12	9
1996	16	13
1995	15	14
1994	19	13
1993	18	14
1992	12	9
1991	15	13
1990	17	14
1989	15	14
1988	13	11
1987	20	15
1986	19	12
1985	16	12
1984	15	14
1983	15	14
1982	14	10
1981	25	22
1980	12	12
1979	17	15
1978	19	12
1977	20	14
1976	15	13
1975	17	15

Note: a count of 1 or 2 is written "1 or 2". A death is in FARS when it occurs in 30 days or less after the crash.

Rate for each 100,000 residents

Table 3.Lassen County beside California and the United States: deaths for each 100,000 residents
Period	Lassen County	California	United States
2024	10.5	9.8	11.5
2015 to 2024, in a year	29.4	10.1	11.8

Note: the rate divides the deaths in the county by its residents. Persons who do not live in the county are in the deaths, not in the residents.

Population: Census Bureau estimates, vintage 2025. Lassen County had 28,593 residents in 2024.

Factors that NHTSA records

Table 4.Lassen County: counts by recorded factor, 2015 to 2024
Factor	Count	Counted among	Share	Share in California
A driver recorded as drinkingof 75 fatal crashes	22	75 fatal crashes	29.3%	27.9%
A speeding-related driverof 75 fatal crashes	19	75 fatal crashes	25.3%	30.2%
No restraint usedof 69 occupant deaths with restraint use known	25	69 occupant deathswith restraint use known	36.2%	38.0%
Pedestriansof 90 deaths	6	90 deaths	6.7%	26.0%
Bicyclistsof 90 deaths	0	90 deaths	0.0%	3.8%
Motorcyclistsof 90 deaths	9	90 deaths	10.0%	14.1%
On a rural roadof 75 fatal crashes with the condition reported	68	75 fatal crasheswith the condition reported	90.7%	29.9%
In the darkof 75 fatal crashes with the condition reported	23	75 fatal crasheswith the condition reported	30.7%	57.5%

Note: FARS records a driver as drinking when police reported alcohol involvement or a test of the driver was positive for alcohol. It is not NHTSA's alcohol-impaired measure, which uses a blood alcohol concentration of .08 g/dL or higher. One crash can be in two or more rows. NHTSA's definitions

Note that alcohol data is often missing. For that reason, this data element may under-count the actual number of drinking drivers.

NHTSA's words. Source: NHTSA, Fatality Analysis Reporting System Analytical User's Manual, 1975-2024 (DOT HS 813 794, April 2026), copied on 2 Oct 2026.

Weekday, time and road class

Table 5.Lassen County: fatal crashes by weekday and time of day, 2015 to 2024
Weekday	Midnight to 6 a.m.	6 a.m. to noon	Noon to 6 p.m.	6 p.m. to midnight	All
Sunday	1 or 2	3	3	1 or 2	9
Monday	0	1 or 2	1 or 2	1 or 2	6
Tuesday	1 or 2	3	7	1 or 2	13
Wednesday	0	3	6	1 or 2	10
Thursday	1 or 2	1 or 2	1 or 2	0	3
Friday	1 or 2	3	1 or 2	6	11
Saturday	1 or 2	5	8	4	18
All days	6	20	28	16	70

Note: a cell with a stronger shade has a larger count. The table has the fatal crashes with a known hour and weekday.

Table 6.Lassen County: fatal crashes by road function class, 2015 to 2024
Road function class	Fatal crashes	Share	Share in California
Interstate	0	0.0%	13.7%
Other freeways and expressways	9	12.0%	12.6%
Other principal arterial	51	68.0%	30.1%
Minor arterial	6	8.0%	21.7%
Major collector	4	5.3%	12.3%
Minor collector	1 or 2	2.7%	2.3%
Local	3	4.0%	7.3%
Not reported	0	n/a	n/a

Note: the classes are those of the Federal Highway Administration. The shares are of the crashes with a reported class. Road function classes

Light condition and weather

Table 7.Lassen County: fatal crashes by light condition, 2015 to 2024
Light condition	Fatal crashes
Daylight	48
Dark, not lighted	19
Dark, lighted	4
Dawn	3
Dusk	1 or 2
Dark, lighting unknown	0
Other or unknown	0

Table 8.Lassen County: fatal crashes by weather, 2015 to 2024
Weather	Fatal crashes
Clear	58
Cloudy	11
Rain	3
Snow, sleet or freezing rain	1 or 2
Fog, smog or smoke	0
Crosswinds or blowing sand/snow	1 or 2
Other or not reported	0

Routes in the county

Table 9.Signed routes in Lassen County that have a page: fatal crashes, 2015 to 2024
Route	Type	In Lassen	In all of California
State Route 36	State highway	7	46
State Route 44	State highway	9	41
State Route 299	State highway	1 or 2	101
US Route 395	US highway	38	167

Note: the table has each route with a page that has a fatal crash in the county, in name order. Local streets and county roads have no page. Their crashes are in the county totals. All routes in California

Adjacent counties

These lists are for navigation. They are in name order.

Figure 3.Lassen County on the county map of California

Deaths for each 100,000 residents in a year, 2015 to 2024

Fewer than 1014 counties
10 to 14.99 counties
15 to 19.914 counties
20 to 29.913 counties
30 or more8 counties
Lassen County: 29.4

The limits of the classes are the same for every state. A county with few residents can show a high rate from few deaths. A class is not a judgement of a county. The full map and the table of counties of California

Table 10.Counties that share a boundary line with Lassen County
County	State	Deaths, 2024	Deaths, 2015 to 2024	For each 100,000 residents in a year
Modoc County	California	4	30	34.3
Plumas County	California	1 or 2	48	25.2
Shasta County	California	33	328	18.2
Sierra County	California	1 or 2	14	45.3
Washoe County	Nevada	50	460	9.6

Source of the list: Census Bureau county adjacency file, 2026 edition.

Counties of similar population

These counties of California have a population nearest to that of Lassen County. The list is for navigation and is in name order. The number is the deaths from 2015 to 2024.

Official channels

NHTSA Fatality and Injury Reporting System Tool (FIRST)NHTSA's query tool for FARS counts.
NHTSA FARS EncyclopediaNHTSA's tables of FARS data.
California Office of Traffic SafetyThe highway safety office of California.

These links go to the sites of the agencies. They were checked on 2 Oct 2026.

Cite this page

Fatal Roads. Lassen County, California: fatal crash statistics. https://fatalroads.com/county/ca/lassen/. Source: National Highway Traffic Safety Administration, Fatality Analysis Reporting System, FARS 2024 annual file. Data to 31 Dec 2024.

The address of this page does not change.

Source of the figures

Counts: National Highway Traffic Safety Administration, Fatality Analysis Reporting System, national files of 1975 to 2024. The factors use the vehicle and person files from 2015. Residents: Census Bureau, Population Estimates Program, vintage 2025. Map: Census Bureau cartographic boundary file, 2021 edition. Data to 31 Dec 2024. The figures are totals. No page of this site is about one crash or one person.

How the figures are made. Data sources and licences. Corrections.

Questions

How many deaths did FARS record in Lassen in the ten years before 2015?

FARS records 85 deaths in Lassen County from 2005 to 2014. It records 90 deaths from 2015 to 2024.

What was the rate of Lassen in 2024?

The rate of Lassen County in 2024 was 10.5 deaths for each 100,000 residents. The rate of California was 9.8. The rate of the United States was 11.5.

How many fatal crashes in Lassen had a driver recorded as drinking?

FARS records a driver as drinking in 22 of 75 fatal crashes from 2015 to 2024. This count is not NHTSA's alcohol-impaired measure. NHTSA says that alcohol data is often missing, so the count may be too low.

How many fatal crashes did FARS record on signed routes in Lassen?

4 signed routes in the county have a page. FARS records 55 fatal crashes on them in the county from 2015 to 2024. The table of routes on this page gives the count for each route.