Somerset County, New Jersey demographics
Somerset County, New Jersey (county FIPS 34035) has a median household income of $140,374 (±$3,294) and a total population of 349,846 in the American Community Survey 5-year estimates for 2020-2024.
Margins of error are at the 90% confidence level. The figures describe 2020-2024 (dollars in 2024 dollars), not the present. 33 ZIP Code Tabulation Areas overlap the county (Census 2020).
Data as of Oct 22, 2026 (Olympus publication) · Markdown version
- Values are ACS 5-year estimates for 2020-2024 (dollars in 2024 dollars), not current figures.
- ZCTA-county overlaps come from the Census 2020 relationship file and use 2020 counties, by land area; Connecticut uses its legacy counties, not the planning regions in ACS 2022+.
ACS 5-year estimates, 2020-2024
Census American Community Survey 5-year estimates for 2020-2024, with 90% margins of error as published by the Census Bureau.
| Metric | Estimate | Margin of error (90%) | ACS table |
|---|---|---|---|
| Total population | 349,846 | none (controlled estimate) | B01003 |
| Median age | 41.8 years | ±0.2 years | B01002 |
| Households | 130,802 | ±435 | B11001 |
| Median household income (inflation-adjusted to the final ACS year) | $140,374 | ±$3,294 | B19013 |
| Median value of owner-occupied housing units | $552,100 | ±$7,374 | B25077 |
| Median gross rent | $2,033 | ±$52 | B25064 |
| Owner-occupied share of occupied housing units | 74.3% | none (derived from several estimates) | B25003 (derived) |
| Renter-occupied share of occupied housing units | 25.7% | none (derived from several estimates) | B25003 (derived) |
| High school graduate or higher (age 25+) | 94% | none (derived from several estimates) | B15003 (derived) |
| Bachelor's degree or higher (age 25+) | 57.8% | none (derived from several estimates) | B15003 (derived) |
| Share of people below the poverty level | 5.4% | none (derived from several estimates) | B17001 (derived) |
| Unemployment rate (civilian labor force) | 4.7% | none (derived from several estimates) | B23025 (derived) |
- Dollar values are in 2024 inflation-adjusted dollars.
- Percentages' margins of error are in percentage points (pp).
Geography
| Measure | Value |
|---|---|
| County FIPS | 34035 |
| Land area | 301.87 sq mi |
| Water area | 3.09 sq mi |
| Population density | 1,159 per sq mi of land |
| Geography vintage | 2024 Gazetteer |
ZIP codes (ZCTAs) in this county
ZCTAs that overlap the county in the Census 2020 ZCTA to county relationship file, largest share of the county's land first.
| ZCTA | Share of county land | Share of ZCTA land | County is the ZCTA's primary county |
|---|---|---|---|
| 08844 | 18.3% | 100% | Yes |
| 08873 | 10.6% | 100% | Yes |
| 08807 | 8.4% | 100% | Yes |
| 07920 | 7.4% | 81.8% | Yes |
| 07059 | 6.5% | 100% | Yes |
| 07921 | 6.1% | 100% | Yes |
| 07931 | 5.5% | 75% | Yes |
| 08558 | 4.9% | 95.5% | Yes |
| 08876 | 4.6% | 86.1% | Yes |
| 08540 | 4.5% | 26.5% | |
| 08502 | 4.4% | 100% | Yes |
| 07924 | 4% | 100% | Yes |
| 08853 | 2.9% | 75.9% | Yes |
| 07069 | 2.1% | 100% | Yes |
| 08836 | 1.5% | 100% | Yes |
| 08812 | 1.3% | 77.8% | Yes |
| 08823 | 1.1% | 100% | Yes |
| 07934 | 1% | 98.4% | Yes |
| 08805 | 1% | 100% | Yes |
| 08835 | 0.7% | 100% | Yes |
| 08869 | 0.7% | 100% | Yes |
| 07977 | 0.7% | 100% | Yes |
| 07060 | 0.6% | 37.6% | |
| 08528 | 0.3% | 94.7% | Yes |
| 07063 | 0.2% | 39% | |
| 08880 | 0.2% | 100% | Yes |
| 08553 | 0.2% | 100% | Yes |
| 08821 | 0.1% | 100% | Yes |
| 07062 | 0.1% | 12.2% | |
| 08890 | 0.1% | 100% | Yes |
| 07979 | 0.1% | 18.8% | |
| 07939 | 0% | 100% | Yes |
| 08525 | 0% | 0.1% |
Sources
- American Community Survey 5-year estimates (Census Data API) — U.S. Census Bureau. ACS 5-year 2020-2024 (release acs5-2024:county), source date 2025-09-02. https://api.census.gov/data/2024/acs/acs5?get=NAME,B01003_001E,B01003_001M,B01002_001E,B01002_001M,B11001_001E,B11001_001M,B19013_001E,B19013_001M,B25077_001E,B25077_001M,B25064_001E,B25064_001M,B25003_001E,B25003_002E,B25003_003E,B15003_001E,B15003_017E,B15003_018E,B15003_019E,B15003_020E,B15003_021E,B15003_022E,B15003_023E,B15003_024E,B15003_025E,B17001_001E,B17001_002E,B23025_003E,B23025_005E&for=county:035&in=state:34
- Published by Olympus on Oct 22, 2026.
- Source data: U.S. Census Bureau. Works of the U.S. government are not subject to copyright in the United States.
- This product uses the Census Bureau Data API but is not endorsed or certified by the Census Bureau.
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curl -s "https://api.olympus.new-odyssey.com/v1/geo-demographics/counties/34035" -H "X-API-Key: $OLYMPUS_API_KEY"get_us_demographics {"county_fips":"34035"}