Somerset County, New Jersey
Somerset County, New Jersey
| Census | Population |
|---|---|
| 2000 | 297,490 |
| 2010 | 323,444 |
| 2020 | 345,361 |
As counted at each census, within the boundaries the area had then; the current estimate is in the glance card.
Sources: Census 2000 Summary File 1: total population, county level, state 34, retrieved November 14, 2026; Census 2010 Summary File 1: total population, county level, state 34, retrieved November 14, 2026; Census 2020 Redistricting Data (P.L. 94-171): total population, county level, state 34, retrieved November 14, 2026.
| Measure | Somerset County | New Jersey |
|---|---|---|
| Population | 346,203 | 9,267,014 |
| Median household income | $135,960 | $101,050 |
| Median age | 41.9 | 40.1 |
| Median home value | $523,900 | $427,600 |
| Bachelor’s degree or higher | 57.4% | 42.9% |
| Foreign-born residents | 27.5% | 23.5% |
| Owner-occupied homes | 74.5% | 63.7% |
| Mean commute to work | 31.5 minutes | 30.9 minutes |
Source: American Community Survey 5-year data profile 2019–2023, county level, state 34, retrieved November 14, 2026.
Median household income $135,960 · Share of households by income, American Community Survey 5-year 2019-2023, table S1901.
Source: American Community Survey 5-year subject table S1901 (household income) 2019–2023, county level, state 34, retrieved November 14, 2026.
- Owner occupied
- 96,414 units
- Renter occupied
- 33,045 units
- Vacancy rate
- 2.5%
Occupied housing units by tenure and the share of all units vacant, American Community Survey 5-year 2019-2023, table DP04.
Source: American Community Survey 5-year data profile 2019–2023, county level, state 34, retrieved November 14, 2026.
188,127 employees in 9,831 establishments with payroll in 2023, all sectors; employers themselves are not named in the source. County Business Patterns counts are published with noise.
Source: County Business Patterns 2023: employment by sector, county level, state 34, retrieved November 14, 2026.
Townships, towns and villages in Somerset County
- Basking RidgeCensus designated place
- Bedminster TownshipTownship
- BedminsterCensus designated place
- Belle MeadCensus designated place
- Bernards TownshipTownship
- BernardsvilleBorough
- Blackwells MillsCensus designated place
- BlawenburgCensus designated place
- Bound BrookBorough
- Bradley GardensCensus designated place
- Branchburg TownshipTownship
- Bridgewater TownshipTownship
- Bridgewater CenterCensus designated place
- ClydeCensus designated place
- East FranklinCensus designated place
- East MillstoneCensus designated place
- East Rocky HillCensus designated place
- Far HillsBorough
- FinderneCensus designated place
- FlagtownCensus designated place
- Franklin TownshipTownship
- Franklin CenterCensus designated place
- Franklin ParkCensus designated place
- Green Brook TownshipTownship
- Green KnollCensus designated place
- GriggstownCensus designated place
- HarlingenCensus designated place
- Hillsborough TownshipTownship
- HillsboroughCensus designated place
- KingstonCensus designated place
- LamingtonCensus designated place
- Liberty CornerCensus designated place
- LyonsCensus designated place
- ManvilleBorough
- MartinsvilleCensus designated place
- MiddlebushCensus designated place
- MillstoneBorough
- Montgomery TownshipTownship
- NeshanicCensus designated place
- Neshanic StationCensus designated place
- North PlainfieldBorough
- Peapack and GladstoneBorough
- Pleasant PlainsCensus designated place
- PluckeminCensus designated place
- RaritanBorough
- Rocky HillBorough
- Six Mile RunCensus designated place
- SkillmanCensus designated place
- SomersetCensus designated place
- SomervilleBorough
- South Bound BrookBorough
- Ten Mile RunCensus designated place
- The HillsCensus designated place
- VoorheesCensus designated place
- Warren TownshipTownship
- WatchungBorough
- WestonCensus designated place
- ZarephathCensus designated place
Neighboring counties
- Hunterdon CountyPopulation 131,708 (2024 estimate)
- Mercer CountyPopulation 392,138 (2024 estimate)
- Middlesex CountyPopulation 890,119 (2024 estimate)
- Morris CountyPopulation 523,053 (2024 estimate)
- Union CountyPopulation 594,160 (2024 estimate)
Sources: Census county adjacency file 2024, retrieved November 14, 2026; Census Population Estimates, Vintage 2024: subcounty totals, state 34, retrieved November 14, 2026.
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- Type
- County
- Land area
- 301.9 sq mi
- Water area
- 3.08 sq mi
- Population
- 357,467 (2024 estimate)
- Households
- 129,459
- Median age
- 41.9
- Median household income
- $135,960
- Median home value
- $523,900
- Median gross rent
- $1,921
- Owner-occupied homes
- 74.5%
- Bachelor’s degree or higher
- 57.4%
- Foreign-born residents
- 27.5%
- Mean commute to work
- 31.5 minutes
- Census GEOID
- 34035
Sources: Census Gazetteer 2025: counties, retrieved November 14, 2026; Census Population Estimates, Vintage 2024: subcounty totals, state 34, retrieved November 14, 2026; American Community Survey 5-year data profile 2019–2023, county level, state 34, retrieved November 14, 2026.
- ZIP codes
- 07059, 07060, 07062, 07063, 07069, 07920, 07921, 07924, 07931, 07934, 07939, 07977, 07979, 08502, 08528, 08540, 08553, 08558, 08805, 08807, 08812, 08821, 08823, 08835, 08836, 08844, 08853, 08869, 08873, 08876, 08880, 08890
- Metro area
- New York-Newark-Jersey City, NY-NJ
Sources: Census 2020 ZCTA relationship file: ZCTAs to counties, retrieved November 14, 2026; Census Gazetteer 2025: metropolitan and micropolitan areas, retrieved November 14, 2026.