St. Clair County, Michigan: fatal crash statistics

Counties of Michigan by year (CSV)Cite this page

FARS records 18 deaths in 17 fatal crashes in St. Clair County in 2024.

FARS records 208 deaths in 192 fatal crashes in the county from 2015 to 2024.

From 2015 to 2024 the rate is 13.0 deaths for each 100,000 residents in a year.

The rate of Michigan in the same years is 10.6.

By deaths from 2015 to 2024, St. Clair County was number 11 of 83 counties of Michigan.

Deaths in St. Clair County rose by 16.2% between the ten years 2005 to 2014 (179) and the ten years 2015 to 2024 (208).

In the counties of Michigan the deaths rose by 8.1% between the same years.

From 2015 to 2024, 50.0% of the fatal crashes in St. Clair County with a known setting were rural, against 40.6% in Michigan.

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 St. Clair 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.St. Clair County: deaths and fatal crashes by year, 2015 to 2024
Year	Deaths	Fatal crashes	Crashes with a driver recorded as drinking
2024	18	17	5
2023	22	21	5
2022	33	31	8
2021	19	17	7
2020	24	20	8
2019	22	19	4
2018	16	16	1 or 2
2017	14	13	1 or 2
2016	22	20	3
2015	18	18	5
2015 to 2024	208	192	47

Each year from 1975

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

Tallest column: 49 (1976)2024: 18

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

Table 2.St. Clair County: deaths and fatal crashes by year, 1975 to 2024
Year	Deaths	Fatal crashes
2024	18	17
2023	22	21
2022	33	31
2021	19	17
2020	24	20
2019	22	19
2018	16	16
2017	14	13
2016	22	20
2015	18	18
2014	17	16
2013	14	13
2012	22	22
2011	16	16
2010	24	24
2009	15	15
2008	17	17
2007	17	17
2006	18	17
2005	19	17
2004	21	19
2003	26	23
2002	26	24
2001	22	21
2000	21	18
1999	28	24
1998	22	20
1997	30	26
1996	36	35
1995	27	25
1994	25	23
1993	26	25
1992	22	18
1991	24	24
1990	25	23
1989	44	38
1988	22	19
1987	26	22
1986	37	32
1985	41	30
1984	40	33
1983	23	22
1982	37	35
1981	27	27
1980	30	25
1979	35	32
1978	44	34
1977	41	36
1976	49	43
1975	39	34

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.St. Clair County beside Michigan and the United States: deaths for each 100,000 residents
Period	St. Clair County	Michigan	United States
2024	11.2	10.9	11.5
2015 to 2024, in a year	13.0	10.6	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. St. Clair County had 160,304 residents in 2024.

Factors that NHTSA records

Table 4.St. Clair County: counts by recorded factor, 2015 to 2024
Factor	Count	Counted among	Share	Share in Michigan
A driver recorded as drinkingof 192 fatal crashes	47	192 fatal crashes	24.5%	28.1%
A speeding-related driverof 192 fatal crashes	42	192 fatal crashes	21.9%	25.4%
No restraint usedof 128 occupant deaths with restraint use known	61	128 occupant deathswith restraint use known	47.7%	39.4%
Pedestriansof 208 deaths	20	208 deaths	9.6%	15.2%
Bicyclistsof 208 deaths	3	208 deaths	1.4%	2.8%
Motorcyclistsof 208 deaths	39	208 deaths	18.8%	15.2%
On a rural roadof 190 fatal crashes with the condition reported	95	190 fatal crasheswith the condition reported	50.0%	40.6%
In the darkof 190 fatal crashes with the condition reported	83	190 fatal crasheswith the condition reported	43.7%	46.3%

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.St. Clair 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	7	1 or 2	9	12	30
Monday	4	5	7	5	21
Tuesday	5	8	8	10	31
Wednesday	3	9	9	5	26
Thursday	3	11	11	8	33
Friday	3	4	9	4	20
Saturday	5	3	10	13	31
All days	30	42	63	57	192

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.St. Clair County: fatal crashes by road function class, 2015 to 2024
Road function class	Fatal crashes	Share	Share in Michigan
Interstate	17	8.9%	9.0%
Other freeways and expressways	1 or 2	0.5%	4.0%
Other principal arterial	27	14.2%	27.7%
Minor arterial	54	28.4%	26.1%
Major collector	58	30.5%	18.4%
Minor collector	1 or 2	1.1%	1.7%
Local	31	16.3%	13.2%
Not reported	1 or 2	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.St. Clair County: fatal crashes by light condition, 2015 to 2024
Light condition	Fatal crashes
Daylight	99
Dark, not lighted	61
Dark, lighted	22
Dawn	3
Dusk	5
Dark, lighting unknown	0
Other or unknown	1 or 2

Table 8.St. Clair County: fatal crashes by weather, 2015 to 2024
Weather	Fatal crashes
Clear	133
Cloudy	42
Rain	8
Snow, sleet or freezing rain	7
Fog, smog or smoke	1 or 2
Crosswinds or blowing sand/snow	0
Other or not reported	1 or 2

Routes in the county

Table 9.Signed routes in St. Clair County that have a page: fatal crashes, 2015 to 2024
Route	Type	In St. Clair	In all of Michigan
Interstate 69	Interstate	8	62
Interstate 94	Interstate	8	288
Interstate 96	Interstate	1 or 2	173
State Route 21	State highway	1 or 2	40
State Route 25	State highway	22	39

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 Michigan

Adjacent counties

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

Figure 3.St. Clair County on the county map of Michigan

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

Fewer than 1012 counties
10 to 14.943 counties
15 to 19.919 counties
20 to 29.98 counties
30 or more1 county
St. Clair County: 13.0

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 Michigan

Table 10.Counties that share a boundary line with St. Clair County
County	State	Deaths, 2024	Deaths, 2015 to 2024	For each 100,000 residents in a year
Lapeer County	Michigan	19	119	13.4
Macomb County	Michigan	70	558	6.4
Sanilac County	Michigan	4	60	14.7

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

Counties of similar population

These counties of Michigan have a population nearest to that of St. Clair 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.
Michigan Office of Highway Safety PlanningThe highway safety office of Michigan.

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

Cite this page

Fatal Roads. St. Clair County, Michigan: fatal crash statistics. https://fatalroads.com/county/mi/st-clair/. 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.

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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 St. Clair in the ten years before 2015?

FARS records 179 deaths in St. Clair County from 2005 to 2014. It records 208 deaths from 2015 to 2024.

What was the rate of St. Clair in 2024?

The rate of St. Clair County in 2024 was 11.2 deaths for each 100,000 residents. The rate of Michigan was 10.9. The rate of the United States was 11.5.

How many fatal crashes in St. Clair had a driver recorded as drinking?

FARS records a driver as drinking in 47 of 192 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 St. Clair?

5 signed routes in the county have a page. FARS records 40 fatal crashes on them in the county from 2015 to 2024. The table of routes on this page gives the count for each route.