ZIP code profile · 2024 county data

ZIP Code 07931

Somerset County, New Jersey: Census demographics for this ZIP plus the containing county's FBI UCR crime rate.

Data updated 2026-09-05

3,399
Population (ZIP)
0
Violent rate /100K (county)
0
Property rate /100K (county)

Is ZIP code 07931 safe? Honest data snapshot

ZIP code 07931 sits within Somerset County, NJ, 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 07931 carries a Census-reported population of 3,399, ranking #20 of 27 ZIPs in Somerset County, spread across 21.95 square miles (about 155 people per square mile). For a full breakdown of Somerset County's crime categories and year-over-year trend, see the Somerset County crime page linked below.

ZIP 07931 has no FBI-native crime rate (postal codes are not police jurisdictions). Figures above use the Somerset County proxy where reported; see methodology for the ZCTA plurality map. Methodology.

ZIP 07931 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
$155,703
Median age
47.3 years
Owner-occupied homes
87%
Occupied homes
1,237
Median home value
$986,000
Bachelor's degree or higher
64.9%
Poverty rate
4.4%
Unemployment rate
8.8%

ZIP 07931's median home value of $986,000 is higher than 97% of the 518 NJ ZIPs with a reported value, one of the priciest in the state by this measure.

Source: U.S. Census Bureau, ACS 2022 5-year ZCTA estimates (income, age, housing tenure, home value, education, and unemployment).

ZIP 07931 settlement vs Somerset County

ZIP 07931 itself is about 155 people per Census sq mi across 22 sq mi (3,399 residents), a postal settlement fact independent of the county UCR proxy.

ZIP 07931 is about 1% of the county reporting population (3,399 of 345,361), so most of the denominator and submitted incidents sit outside this postal code.

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 07931

Similar Census population (~3,399)

County detail: Somerset County · State atlas: New Jersey

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.