Nassau County, New York: fatal crash statistics

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

FARS records 65 deaths in 63 fatal crashes in Nassau County in 2024.

FARS records 771 deaths in 726 fatal crashes in the county from 2015 to 2024.

From 2015 to 2024 the rate is 5.6 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, Nassau County was number 2 of 62 counties of New York.

Deaths in Nassau County fell by 17.2% between the ten years 2005 to 2014 (931) and the ten years 2015 to 2024 (771).

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

From 2015 to 2024, 7.0% of the fatal crashes in Nassau 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 Nassau 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.Nassau County: deaths and fatal crashes by year, 2015 to 2024
Year	Deaths	Fatal crashes	Crashes with a driver recorded as drinking
2024	65	63	3
2023	66	60	8
2022	81	76	20
2021	83	80	14
2020	78	72	14
2019	73	67	10
2018	71	68	10
2017	79	74	10
2016	80	74	12
2015	95	92	18
2015 to 2024	771	726	119

Each year from 1975

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

Tallest column: 169 (1987)2024: 65

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

Table 2.Nassau County: deaths and fatal crashes by year, 1975 to 2024
Year	Deaths	Fatal crashes
2024	65	63
2023	66	60
2022	81	76
2021	83	80
2020	78	72
2019	73	67
2018	71	68
2017	79	74
2016	80	74
2015	95	92
2014	81	71
2013	83	80
2012	94	87
2011	89	86
2010	104	98
2009	87	83
2008	96	93
2007	93	90
2006	96	87
2005	108	100
2004	119	108
2003	115	106
2002	125	119
2001	100	91
2000	100	95
1999	132	125
1998	105	103
1997	114	114
1996	87	76
1995	106	101
1994	109	104
1993	112	106
1992	127	121
1991	128	120
1990	147	141
1989	161	146
1988	140	126
1987	169	157
1986	125	115
1985	121	114
1984	135	123
1983	136	126
1982	146	127
1981	150	144
1980	156	144
1979	140	133
1978	134	118
1977	127	120
1976	146	138
1975	141	130

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.Nassau County beside New York and the United States: deaths for each 100,000 residents
Period	Nassau County	New York	United States
2024	4.7	5.5	11.5
2015 to 2024, in a year	5.6	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. Nassau County had 1,397,783 residents in 2024.

Factors that NHTSA records

Table 4.Nassau County: counts by recorded factor, 2015 to 2024
Factor	Count	Counted among	Share	Share in New York
A driver recorded as drinkingof 726 fatal crashes	119	726 fatal crashes	16.4%	20.2%
A speeding-related driverof 726 fatal crashes	209	726 fatal crashes	28.8%	30.9%
No restraint usedof 311 occupant deaths with restraint use known	103	311 occupant deathswith restraint use known	33.1%	38.5%
Pedestriansof 771 deaths	260	771 deaths	33.7%	26.3%
Bicyclistsof 771 deaths	39	771 deaths	5.1%	4.0%
Motorcyclistsof 771 deaths	109	771 deaths	14.1%	16.4%
On a rural roadof 726 fatal crashes with the condition reported	51	726 fatal crasheswith the condition reported	7.0%	30.4%
In the darkof 726 fatal crashes with the condition reported	398	726 fatal crasheswith the condition reported	54.8%	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.Nassau 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	33	21	26	34	114
Monday	13	18	29	35	95
Tuesday	15	18	16	36	85
Wednesday	18	27	22	29	96
Thursday	21	18	26	31	96
Friday	19	24	25	37	105
Saturday	38	15	26	56	135
All days	157	141	170	258	726

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.Nassau County: fatal crashes by road function class, 2015 to 2024
Road function class	Fatal crashes	Share	Share in New York
Interstate	22	3.0%	7.6%
Other freeways and expressways	112	15.4%	6.9%
Other principal arterial	200	27.5%	29.1%
Minor arterial	177	24.4%	19.6%
Major collector	30	4.1%	9.5%
Minor collector	12	1.7%	2.9%
Local	173	23.8%	24.6%
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.Nassau County: fatal crashes by light condition, 2015 to 2024
Light condition	Fatal crashes
Daylight	301
Dark, not lighted	38
Dark, lighted	360
Dawn	15
Dusk	12
Dark, lighting unknown	0
Other or unknown	0

Table 8.Nassau County: fatal crashes by weather, 2015 to 2024
Weather	Fatal crashes
Clear	466
Cloudy	180
Rain	68
Snow, sleet or freezing rain	6
Fog, smog or smoke	3
Crosswinds or blowing sand/snow	0
Other or not reported	3

Routes in the county

Table 9.Signed routes in Nassau County that have a page: fatal crashes, 2015 to 2024
Route	Type	In Nassau	In all of New York
Interstate 495	Interstate	21	102
State Route 24	State highway	37	51
State Route 25	State highway	15	118
State Route 25A	State highway	10	60
State Route 27	State highway	40	167
State Route 27A	State highway	1 or 2	25
State Route 908E	State highway	23	23
State Route 908G	State highway	21	31
State Route 908M	State highway	51	89
State Route 908T	State highway	20	20

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.Nassau 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
Nassau County: 5.6

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 Nassau County
County	State	Deaths, 2024	Deaths, 2015 to 2024	For each 100,000 residents in a year
Fairfield County	Connecticut	57	516	5.5
Bronx County	New York	52	447	3.1
Queens County	New York	73	698	3.0
Suffolk County	New York	120	1,389	9.2
Westchester County	New York	42	376	3.8

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 Nassau 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. Nassau County, New York: fatal crash statistics. https://fatalroads.com/county/ny/nassau/. 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 Nassau in the ten years before 2015?

FARS records 931 deaths in Nassau County from 2005 to 2014. It records 771 deaths from 2015 to 2024.

What was the rate of Nassau in 2024?

The rate of Nassau County in 2024 was 4.7 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 Nassau had a driver recorded as drinking?

FARS records a driver as drinking in 119 of 726 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 Nassau?

10 signed routes in the county have a page. FARS records 240 fatal crashes on them in the county from 2015 to 2024. The table of routes on this page gives the count for each route.