ZIP code profile · 2024 county data
ZIP Code 11940
Suffolk County, New York: Census demographics for this ZIP plus the containing county's FBI UCR crime rate.
Data updated 2026-08-24
- 5,462
- Population (ZIP)
- 3
- Violent rate /100K (county)
- 0
- Property rate /100K (county)
Is ZIP code 11940 safe? Honest data snapshot
ZIP code 11940 sits within Suffolk County, NY, in which law-enforcement agencies did not report complete 2024 data to the FBI UCR Program. The county figures below cover only the agencies that submitted, so they are not a measure of crime in this area and no comparison to the national average is drawn from them.
ZIP 11940 carries a Census-reported population of 5,462, ranking #70 of 108 ZIPs in Suffolk County, spread across 5.01 square miles (about 1,090 people per square mile). For a full breakdown of Suffolk County's crime categories and year-over-year trend, see the Suffolk County crime page linked below.
ZIP 11940 has no FBI-native crime rate (postal codes are not police jurisdictions). Figures above use the Suffolk County proxy where reported; see methodology for the ZCTA plurality map. Methodology.
ZIP 11940 Census context
These are ZIP/ZCTA demographic estimates, separate from the county-level FBI proxy above. They describe the local settlement, not a crime rate.
- Median household income
- $128,598
- Median age
- 47.1 years
- Owner-occupied homes
- 75%
- Occupied homes
- 1,929
Source: U.S. Census Bureau, ACS 2022 5-year ZCTA estimates (income, age, and occupied housing tenure).
ZIP 11940 settlement vs Suffolk County
ZIP 11940 itself is about 1,090 people per Census sq mi across 5 sq mi (5,462 residents), a postal settlement fact independent of the county UCR proxy.
ZIP 11940 is about 0.4% of the county reporting population (5,462 of 1,525,920), so most of the denominator and submitted incidents sit outside this postal code.
Suffolk County's 2024 UCR book concentrates in aggravated assault (100% of 45 offenses; mix index 10,000). ZIP 11940 inherits that county mix, not a postal-native split.
Settlement lines use Census ZCTA figures only; incomplete county agency coverage blocks any UCR mix or rate desk for this ZIP.
Nationwide peers for ZIP 11940
Similar county violent rate (~3/100K)
- ZIP 03868, NH · 3.1/100K · Strafford County
- ZIP 28098, NC · 3.1/100K · Gaston County
- ZIP 68524, NE · 2.8/100K · Lancaster County
- ZIP 03253, NH · 3.1/100K · Belknap County
Similar Census population (~5,462)
- ZIP 63845, MO · 5,463 pop · Δ1
- ZIP 66616, KS · 5,463 pop · Δ1
- ZIP 38865, MS · 5,466 pop · Δ4
- ZIP 53726, WI · 5,457 pop · Δ5
County detail: Suffolk County · State atlas: New York
Sources: U.S. Census Bureau (ZIP population, land area, 2020 ZCTA-to-county relationship file, ACS 5-year estimates) and FBI Uniform Crime Reporting (UCR) Program, Crime in the United States (CIUS) Table 10 (county-level crime, attributed via ZIP-to-county crosswalk).
Verify with Census.gov Geography and FBI.gov UCR.
Read our methodology , how this data is sourced, computed, and verified.
Every figure on PlainCrime is rendered directly from FBI Uniform Crime Reporting (UCR) source data, no number is typed in by an editor. This page combines Census ZIP-level figures with a ZIP-to-county crosswalk to attribute FBI UCR crime data honestly, no figure is typed in by an editor. See our editorial standards & corrections policy, the methodology behind these numbers, or report a data error.