CrashRate

Fatal crash rate · New York

Fatal crash rate in Nassau County, New York

Fatal crashes recorded by NHTSA in Nassau County, New York, 2020 to 2024, divided by the people who live there. Fatal crashes only: not injuries, not all crashes, not traffic in general.

Nassau County, New York2024 · fatal crashes recorded by NHTSA

4.5fatal crashes per 100,000 residents in 2024

In 2024, NHTSA recorded 63 fatal crashes in Nassau County, New York, where 1,397,783 people lived. That is 4.5 fatal crashes for every 100,000 residents, and 65 people died in those crashes. Over 2020 to 2024 the average was 5.0.

The road is a scale of fatal crashes per 100,000 residents in 2024, 0 to 40. The yellow post is Nassau County; the white posts are New York and the United States.

Per 100,000
63 fatal crashes ÷ 1,397,783 residents × 100,000 = 4.5
Five-year
351 crashes (2020 to 2024) ÷ 6,957,808 resident-years × 100,000 = 5.0
Same year
New York: 1,036 ÷ 20,001,419 = 5.2 · United States: 36,297 ÷ 340,003,797 = 10.7

Every year, 2020 to 2024

YearFatal crashesDeathsPopulationPer 100,000
202072781,390,9525.2
202180831,391,7875.7
202276811,388,3465.5
202360661,388,9404.3
202463651,397,7834.5

2024 is NHTSA’s Annual Report File and will be revised when the final file replaces it. Populations are July 1 estimates, Census Vintage 2025.

What the record says about those crashes, 2020 to 2024

Every figure is a count of the 351 fatal crashes NHTSA coded to Nassau County, New York over five years, from the fields FARS records. Nothing is estimated or inferred.

Road typeCrashesShare
Interstate144%
Other freeway or expressway6519%
Other principal arterial9928%
Minor arterial11733%
Major collector165%
Minor collector00%
Local road4011%
Unknown or not reported00%
Rural31%
Urban34899%
Time of dayCrashesShare
Midnight to 5:59 am8524%
6 am to 11:59 am5716%
Noon to 5:59 pm8123%
6 pm to 11:59 pm12836%
Hour unknown00%
LightCrashesShare
Daylight13940%
Dark, not lighted (or lighting unknown)175%
Dark, lighted18152%
Dawn or dusk144%
Unknown or not reported00%
WeatherCrashesShare
Clear22163%
Cloudy8825%
Rain3610%
Snow, sleet or freezing rain31%
Fog, smog or smoke10%
Severe wind, blowing sand or other00%
Unknown or not reported21%
InvolvingCrashesShare
A pedestrian12636%
A bicyclist or other cyclist123%
A speeding-related vehicle10730%
A driver police reported as drinking319%
Most-named roadsCrashes
SR-908M SOUTHERN STATE PKWY21
SR-908E MEADOWBROOK STATE PKWY13
SR-27 SUNRISE HWY11
SR-908G NORTHERN STATE PKWY8
PENINSULA BLVD8

Road type is FARS FUNC_SYS; speeding is any vehicle coded SPEEDREL 2 to 5; drinking is any driver coded DRINKING = 1 (police-reported, not a blood-alcohol test). Road names are the trafficway strings as the police coded them, counted as written, so the same road can appear under two spellings.

How this is counted

  • Fatal crashes are rows in NHTSA’s Fatality Analysis Reporting System (FARS) file FARS2024NationalCSV.zip, accident.csv, one row per crash on a public road in which someone died within 30 days. Deaths are the FATALS field. Counties are the FARS STATE and COUNTY codes joined to Census FIPS codes.
  • Population is the Census Bureau’s July 1 estimate for the same year, county totals, Vintage 2025. Rate per 100,000 = crashes ÷ population × 100,000.
  • The five-year average is total crashes over the years with both inputs ÷ total population over those years × 100,000, the rolling form in 23 CFR 490.207.
  • What it cannot say. FARS has no injury-only or property-damage crashes, no congestion, and nothing about any one driver, trip or road’s risk. A crash is counted where it happened, not where the people lived. Rates are not ranked here; comparing two places means comparing both sets of inputs.

Informational only, not professional advice. Last reviewed: October 2026. Data snapshot built 2026-10-28.