Suffolk County, New York: fatal crash statistics

Counties of New York by year (CSV)Cite this page

FARS records 120 deaths in 110 fatal crashes in Suffolk County in 2024.

FARS records 1,389 deaths in 1,287 fatal crashes in the county from 2015 to 2024.

From 2015 to 2024 the rate is 9.2 deaths for each 100,000 residents in a year.

The rate of New York in the same years is 5.4.

By deaths from 2015 to 2024, Suffolk County was number 1 of 62 counties of New York.

Deaths in Suffolk County fell by 6.3% between the ten years 2005 to 2014 (1,482) and the ten years 2015 to 2024 (1,389).

In the counties of New York the deaths fell by 13.9% between the same years.

From 2015 to 2024, 8.9% of the fatal crashes in Suffolk County with a known setting were rural, against 30.4% in New York.

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 Suffolk County by year, 2015 to 2024

168

139

122

137

115

113

153

164

158

120

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.Suffolk County: deaths and fatal crashes by year, 2015 to 2024
Year	Deaths	Fatal crashes	Crashes with a driver recorded as drinking
2024	120	110	15
2023	158	146	33
2022	164	154	38
2021	153	142	40
2020	113	108	19
2019	115	108	26
2018	137	126	36
2017	122	113	17
2016	139	122	21
2015	168	158	36
2015 to 2024	1,389	1,287	281

Each year from 1975

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

Tallest column: 262 (1980)2024: 120

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

Table 2.Suffolk County: deaths and fatal crashes by year, 1975 to 2024
Year	Deaths	Fatal crashes
2024	120	110
2023	158	146
2022	164	154
2021	153	142
2020	113	108
2019	115	108
2018	137	126
2017	122	113
2016	139	122
2015	168	158
2014	123	117
2013	145	140
2012	140	137
2011	145	140
2010	138	130
2009	148	138
2008	162	154
2007	167	159
2006	151	146
2005	163	151
2004	170	158
2003	166	158
2002	168	153
2001	183	168
2000	161	153
1999	169	152
1998	179	161
1997	161	149
1996	159	148
1995	176	168
1994	154	145
1993	196	181
1992	185	174
1991	207	187
1990	208	193
1989	205	189
1988	198	179
1987	210	198
1986	226	211
1985	181	169
1984	198	188
1983	223	203
1982	204	183
1981	246	233
1980	262	246
1979	230	215
1978	221	200
1977	206	191
1976	190	178
1975	201	179

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.Suffolk County beside New York and the United States: deaths for each 100,000 residents
Period	Suffolk County	New York	United States
2024	7.8	5.5	11.5
2015 to 2024, in a year	9.2	5.4	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. Suffolk County had 1,543,330 residents in 2024.

Factors that NHTSA records

Table 4.Suffolk County: counts by recorded factor, 2015 to 2024
Factor	Count	Counted among	Share	Share in New York
A driver recorded as drinkingof 1,287 fatal crashes	281	1,287 fatal crashes	21.8%	20.2%
A speeding-related driverof 1,287 fatal crashes	350	1,287 fatal crashes	27.2%	30.9%
No restraint usedof 627 occupant deaths with restraint use known	260	627 occupant deathswith restraint use known	41.5%	38.5%
Pedestriansof 1,389 deaths	412	1,389 deaths	29.7%	26.3%
Bicyclistsof 1,389 deaths	54	1,389 deaths	3.9%	4.0%
Motorcyclistsof 1,389 deaths	174	1,389 deaths	12.5%	16.4%
On a rural roadof 1,285 fatal crashes with the condition reported	114	1,285 fatal crasheswith the condition reported	8.9%	30.4%
In the darkof 1,286 fatal crashes with the condition reported	708	1,286 fatal crasheswith the condition reported	55.1%	46.9%

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.Suffolk 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	72	27	45	62	206
Monday	41	28	42	67	178
Tuesday	25	35	43	55	158
Wednesday	24	33	42	68	167
Thursday	26	36	43	55	160
Friday	33	34	48	76	191
Saturday	65	26	47	87	225
All days	286	219	310	470	1,285

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.Suffolk County: fatal crashes by road function class, 2015 to 2024
Road function class	Fatal crashes	Share	Share in New York
Interstate	53	4.1%	7.6%
Other freeways and expressways	127	9.9%	6.9%
Other principal arterial	400	31.1%	29.1%
Minor arterial	324	25.2%	19.6%
Major collector	58	4.5%	9.5%
Minor collector	14	1.1%	2.9%
Local	309	24.0%	24.6%
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.Suffolk County: fatal crashes by light condition, 2015 to 2024
Light condition	Fatal crashes
Daylight	529
Dark, not lighted	185
Dark, lighted	521
Dawn	22
Dusk	27
Dark, lighting unknown	1 or 2
Other or unknown	1 or 2

Table 8.Suffolk County: fatal crashes by weather, 2015 to 2024
Weather	Fatal crashes
Clear	847
Cloudy	277
Rain	134
Snow, sleet or freezing rain	8
Fog, smog or smoke	12
Crosswinds or blowing sand/snow	1 or 2
Other or not reported	8

Routes in the county

Table 9.Signed routes in Suffolk County that have a page: fatal crashes, 2015 to 2024
Route	Type	In Suffolk	In all of New York
Interstate 495	Interstate	52	102
State Route 24	State highway	13	51
State Route 25	State highway	87	118
State Route 25A	State highway	39	60
State Route 27	State highway	94	167
State Route 27A	State highway	23	25
State Route 110	State highway	29	29
State Route 112	State highway	25	25
State Route 347	State highway	22	22
State Route 454	State highway	26	26
State Route 907M	State highway	1 or 2	29
State Route 908G	State highway	10	31
State Route 908M	State highway	36	89

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 New York

Adjacent counties

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

Figure 3.Suffolk County on the county map of New York

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

Fewer than 1040 counties
10 to 14.917 counties
15 to 19.95 counties
20 to 29.90 counties
30 or more0 counties
Suffolk County: 9.2

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 New York

Table 10.Counties that share a boundary line with Suffolk County
County	State	Deaths, 2024	Deaths, 2015 to 2024	For each 100,000 residents in a year
Fairfield County	Connecticut	57	516	5.5
Middlesex County	Connecticut	14	149	9.2
New Haven County	Connecticut	81	810	9.5
New London County	Connecticut	35	281	10.5
Nassau County	New York	65	771	5.6
Washington County	Rhode Island	10	105	8.2

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

Counties of similar population

These counties of New York have a population nearest to that of Suffolk 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.
New York Governor's Traffic Safety CommitteeThe highway safety office of New York.

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

Cite this page

Fatal Roads. Suffolk County, New York: fatal crash statistics. https://fatalroads.com/county/ny/suffolk/. 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 Suffolk in the ten years before 2015?

FARS records 1,482 deaths in Suffolk County from 2005 to 2014. It records 1,389 deaths from 2015 to 2024.

What was the rate of Suffolk in 2024?

The rate of Suffolk County in 2024 was 7.8 deaths for each 100,000 residents. The rate of New York was 5.5. The rate of the United States was 11.5.

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

FARS records a driver as drinking in 281 of 1,287 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 Suffolk?

13 signed routes in the county have a page. FARS records 457 fatal crashes on them in the county from 2015 to 2024. The table of routes on this page gives the count for each route.