County crime profile · 2024 · very large county · property-led
Nassau County, NY
At 1,395,774 residents, Nassau County is a very large county in New York. FBI UCR county totals below are read before any per-100,000 rate (Census denominator when matched).
Nassau County, NY reported 125 violent crimes per 100,000 in FBI UCR 2024
According to the FBI Uniform Crime Reporting (UCR) Program for 2024, Nassau County, NY agencies reported 1,744 violent and 11,887 property offenses. That equals about 125 violent and 852 property crimes per 100,000 using a verified Census population join. Table 10 coverage is a voluntary subset of U.S. counties.
2024 UCR year
1,744 violent offenses
125/100K violent rate
What the 2024 FBI UCR record shows for Nassau County, NY
Position in the state cohort
Nassau County reported the highest violent-crime rate among comparable New York counties
At 124.9 reported violent offenses per 100,000 residents in 2024, Nassau County ranks 1 of 39 — above 38 of the 38 other New York counties whose 2024 submission passes this site’s completeness test and carries a matched Census denominator. That is +399.7% against the cohort median of 25.0. Counties that did not report, or that reported implausibly low totals, are excluded from this cohort rather than counted as low-crime.
Share of the state cohort
Nassau County carries a large share of the reporting cohort’s total offenses
The 13,631 Part I offenses reported here are 52.8% of the 25,800 reported across all 39 comparable New York counties in 2024. A county this large moves the statewide total on its own, so state-level changes should be read against its population of 1,395,774 rather than as a uniform shift.
2020–2024 direction
The reported violent-crime rate ended the window higher
Across 4 comparable reporting years, the rate moved from 93.4 per 100,000 in 2020 to 124.9 in 2024 (+33.7%). The highest observed value was 133.8 in 2023 and the lowest 93.4 in 2020. Years whose submission failed the completeness test are left out of this comparison rather than plotted as change.
Property-offense composition
Larceny-theft dominates the property total more than it does across the cohort
Larceny-theft is 90.6% of reported property offenses in Nassau County, against a cohort median of 81.0%. The remainder is burglary (832) and motor vehicle theft (288). Composition differences of this size usually track what kinds of places and property are present in a jurisdiction.
On a very large county row, county figures aggregate every participating agency inside the county. Participation is voluntary. Per-100,000 rates use a separately matched 2020 U.S. Census county population, never a Table 10 field; unmatched counties stay count-only. A large county line encloses very different communities.
Crime Breakdown (2024) · property-led · very large county
Category
Count
Property Crime
11,887
Burglary
832
Larceny-Theft
10,767
Motor Vehicle Theft
288
Arson
-
Violent Crime
1,744
Murder
10
Rape
140
Robbery
396
Aggravated Assault
1,198
Reporting Agency
Nassau County Police Department Summary Reporting (SRS)
Nassau County's crime figures on this page originate from Nassau County Police Department's submission to the FBI's Uniform Crime Reporting Program.
This agency reports via the traditional Summary Reporting System (SRS): aggregate monthly offense counts rather than incident-level detail.
Similar-Size Counties in New York
A per-capita rate is easiest to read against places of similar scale, so these are the New York counties closest to Nassau County in population. Their populations run from 476,516 to 1,525,920, against 1,395,774 here. Or launch the
side-by-side compare tool
to benchmark two jurisdictions directly.
Source: FBI Uniform Crime Reporting (UCR) Program, Crime in the United States (CIUS) Table 10.
FBI Table 10 supplies county offense counts but no resident population. Where this page shows a per-100,000 rate, the denominator is a separately matched 2020 U.S. Census Bureau county population; unmatched county rows remain count-only. Statewide comparisons draw on the state UCR program. Verify with FBI.gov UCR and Census.gov QuickFacts.