Green Knoll, New Jersey
Census designated place in Somerset County, New Jersey
| Census | Population |
|---|---|
| 2010 | 6,200 |
| 2020 | 6,594 |
As counted at each census, within the boundaries the area had then; the current estimate is in the glance card.
Sources: Census 2010 Summary File 1: total population, place level, state 34, retrieved November 14, 2026; Census 2020 Redistricting Data (P.L. 94-171): total population, place level, state 34, retrieved November 14, 2026.
| Measure | Green Knoll | Somerset County | New Jersey |
|---|---|---|---|
| Population | 6,664 | 346,203 | 9,267,014 |
| Median household income | $156,630 | $135,960 | $101,050 |
| Median age | 44.1 | 41.9 | 40.1 |
| Median home value | $581,600 | $523,900 | $427,600 |
| Bachelor’s degree or higher | 58.4% | 57.4% | 42.9% |
| Foreign-born residents | 21.1% | 27.5% | 23.5% |
| Owner-occupied homes | 75.9% | 74.5% | 63.7% |
| Mean commute to work | 28.0 minutes | 31.5 minutes | 30.9 minutes |
Source: American Community Survey 5-year data profile 2019–2023, place level, state 34, retrieved November 14, 2026.
Median household income $156,630 · 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, place level, state 34, retrieved November 14, 2026.
- Owner occupied
- 1,801 units
- Renter occupied
- 571 units
- Vacancy rate
- 3.5%
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, place level, state 34, retrieved November 14, 2026.
| School | Type | Grades | District |
|---|---|---|---|
| Bridgewater-Raritan Middle School | Public | 7–8 | Bridgewater-Raritan Regional School District |
| Hillside Intermediate School | Public | 5–6 | Bridgewater-Raritan Regional School District |
| Somerset County Vocational Technical High School | Career and technical | 9–12 | Somerset County Vocational and Technical School District |
Open public schools in the NCES directory for 2023–2024, placed by their listed location; private schools are not in the source. Enrollment and ratings are not shown.
Sources: NCES Common Core of Data, public school directory 2023–2024, retrieved November 14, 2026; NCES EDGE public school geocodes 2024–2025, retrieved November 14, 2026.
Community
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Nearby towns
- Bridgewater TownshipTownship
- Bridgewater CenterCensus designated place
- MartinsvilleCensus designated place
- SomervilleBorough
- RaritanBorough
- PluckeminCensus designated place
- The HillsCensus designated place
- Bradley GardensCensus designated place
- FinderneCensus designated place
- Liberty CornerCensus designated place
Other towns 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
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- Type
- Census designated place
- County
- Somerset County
- Within
- Bridgewater Township
- Land area
- 4.64 sq mi
- Water area
- 0.00 sq mi
- Population
- 6,664 (2019-2023 estimate)
- Households
- 2,372
- Median age
- 44.1
- Median household income
- $156,630
- Median home value
- $581,600
- Median gross rent
- $1,417
- Owner-occupied homes
- 75.9%
- Bachelor’s degree or higher
- 58.4%
- Foreign-born residents
- 21.1%
- Mean commute to work
- 28.0 minutes
- Census GEOID
- 3427840
Sources: Census Gazetteer 2025: places, retrieved November 14, 2026; American Community Survey 5-year data profile 2019–2023, place level, state 34, retrieved November 14, 2026.
- ZIP codes
- 08807
- Metro area
- New York-Newark-Jersey City, NY-NJ
Sources: Census 2020 ZCTA relationship file: ZCTAs to places, retrieved November 14, 2026; Census Gazetteer 2025: metropolitan and micropolitan areas, retrieved November 14, 2026.