Seneca County, Ohio: fatal crash statistics

Counties of Ohio by year (CSV)Cite this page

FARS records 13 deaths in 9 fatal crashes in Seneca County in 2024.

FARS records 67 deaths in 62 fatal crashes in the county from 2015 to 2024.

From 2015 to 2024 the rate is 12.2 deaths for each 100,000 residents in a year.

The rate of Ohio in the same years is 10.1.

By deaths from 2015 to 2024, Seneca County was number 56 of 88 counties of Ohio.

Deaths in Seneca County fell by 26.4% between the ten years 2005 to 2014 (91) and the ten years 2015 to 2024 (67).

In the counties of Ohio the deaths rose by 5.9% between the same years.

From 2015 to 2024, 83.9% of the fatal crashes in Seneca County with a known setting were rural, against 42.3% in Ohio.

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 Seneca 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.Seneca County: deaths and fatal crashes by year, 2015 to 2024
Year	Deaths	Fatal crashes	Crashes with a driver recorded as drinking
2024	13	9	1 or 2
2023	6	6	3
2022	4	4	1 or 2
2021	4	4	1 or 2
2020	11	11	3
2019	7	7	1 or 2
2018	4	4	0
2017	11	10	6
2016	3	3	0
2015	4	4	1 or 2
2015 to 2024	67	62	21

Each year from 1975

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

Tallest column: 27 (1979)2024: 13

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

Table 2.Seneca County: deaths and fatal crashes by year, 1975 to 2024
Year	Deaths	Fatal crashes
2024	13	9
2023	6	6
2022	4	4
2021	4	4
2020	11	11
2019	7	7
2018	4	4
2017	11	10
2016	3	3
2015	4	4
2014	3	1 or 2
2013	14	11
2012	10	8
2011	5	3
2010	10	9
2009	5	5
2008	7	7
2007	15	12
2006	12	11
2005	10	10
2004	11	11
2003	12	11
2002	8	7
2001	13	12
2000	10	9
1999	8	7
1998	10	10
1997	8	8
1996	13	12
1995	14	11
1994	12	11
1993	16	14
1992	13	12
1991	16	14
1990	8	6
1989	10	10
1988	13	13
1987	20	17
1986	17	15
1985	18	15
1984	8	8
1983	13	10
1982	18	16
1981	13	9
1980	20	14
1979	27	22
1978	19	15
1977	14	12
1976	17	16
1975	14	14

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.Seneca County beside Ohio and the United States: deaths for each 100,000 residents
Period	Seneca County	Ohio	United States
2024	23.8	9.8	11.5
2015 to 2024, in a year	12.2	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. Seneca County had 54,694 residents in 2024.

Factors that NHTSA records

Table 4.Seneca County: counts by recorded factor, 2015 to 2024
Factor	Count	Counted among	Share	Share in Ohio
A driver recorded as drinkingof 62 fatal crashes	21	62 fatal crashes	33.9%	31.7%
A speeding-related driverof 62 fatal crashes	12	62 fatal crashes	19.4%	22.7%
No restraint usedof 48 occupant deaths with restraint use known	29	48 occupant deathswith restraint use known	60.4%	55.4%
Pedestriansof 67 deaths	4	67 deaths	6.0%	11.7%
Bicyclistsof 67 deaths	0	67 deaths	0.0%	1.8%
Motorcyclistsof 67 deaths	5	67 deaths	7.5%	16.3%
On a rural roadof 62 fatal crashes with the condition reported	52	62 fatal crasheswith the condition reported	83.9%	42.3%
In the darkof 62 fatal crashes with the condition reported	25	62 fatal crasheswith the condition reported	40.3%	45.0%

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.Seneca 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	0	0	1 or 2	4
Monday	1 or 2	0	5	1 or 2	8
Tuesday	0	1 or 2	5	0	6
Wednesday	3	0	5	3	11
Thursday	1 or 2	1 or 2	5	3	11
Friday	4	1 or 2	5	5	16
Saturday	1 or 2	1 or 2	4	0	6
All days	13	5	29	15	62

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.Seneca County: fatal crashes by road function class, 2015 to 2024
Road function class	Fatal crashes	Share	Share in Ohio
Interstate	0	0.0%	11.6%
Other freeways and expressways	0	0.0%	3.4%
Other principal arterial	9	14.5%	19.5%
Minor arterial	15	24.2%	21.6%
Major collector	18	29.0%	24.5%
Minor collector	1 or 2	1.6%	4.2%
Local	19	30.6%	15.2%
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.Seneca County: fatal crashes by light condition, 2015 to 2024
Light condition	Fatal crashes
Daylight	34
Dark, not lighted	24
Dark, lighted	1 or 2
Dawn	1 or 2
Dusk	1 or 2
Dark, lighting unknown	0
Other or unknown	0

Table 8.Seneca County: fatal crashes by weather, 2015 to 2024
Weather	Fatal crashes
Clear	40
Cloudy	16
Rain	4
Snow, sleet or freezing rain	1 or 2
Fog, smog or smoke	1 or 2
Crosswinds or blowing sand/snow	0
Other or not reported	0

Routes in the county

Table 9.Signed routes in Seneca County that have a page: fatal crashes, 2015 to 2024
Route	Type	In Seneca	In all of Ohio
State Route 4	State highway	1 or 2	87
State Route 18	State highway	8	51
State Route 53	State highway	7	20
US Route 23	US highway	1 or 2	137
US Route 224	US highway	7	54

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 Ohio

Adjacent counties

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

Figure 3.Seneca County on the county map of Ohio

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

Fewer than 1022 counties
10 to 14.929 counties
15 to 19.927 counties
20 to 29.99 counties
30 or more1 county
Seneca County: 12.2

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 Ohio

Table 10.Counties that share a boundary line with Seneca County
County	State	Deaths, 2024	Deaths, 2015 to 2024	For each 100,000 residents in a year
Crawford County	Ohio	1 or 2	42	10.1
Hancock County	Ohio	14	105	13.9
Huron County	Ohio	4	76	13.0
Sandusky County	Ohio	8	100	17.0
Wood County	Ohio	19	174	13.3
Wyandot County	Ohio	1 or 2	37	17.0

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

Counties of similar population

These counties of Ohio have a population nearest to that of Seneca 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.
Ohio Traffic Safety OfficeThe highway safety office of Ohio.

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

Cite this page

Fatal Roads. Seneca County, Ohio: fatal crash statistics. https://fatalroads.com/county/oh/seneca/. 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 Seneca in the ten years before 2015?

FARS records 91 deaths in Seneca County from 2005 to 2014. It records 67 deaths from 2015 to 2024.

What was the rate of Seneca in 2024?

The rate of Seneca County in 2024 was 23.8 deaths for each 100,000 residents. The rate of Ohio was 9.8. The rate of the United States was 11.5.

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

FARS records a driver as drinking in 21 of 62 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 Seneca?

5 signed routes in the county have a page. FARS records 24 fatal crashes on them in the county from 2015 to 2024. The table of routes on this page gives the count for each route.