East Rocky Hill, New Jersey
Census designated place in Somerset County, New Jersey
| Census | Population |
|---|---|
| 2010 | 469 |
| 2020 | 468 |
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 | East Rocky Hill | Somerset County | New Jersey |
|---|---|---|---|
| Population | 212 | 346,203 | 9,267,014 |
| Median household income | $232,727 | $135,960 | $101,050 |
| Median age | 59.4 | 41.9 | 40.1 |
| Median home value | $643,500 | $523,900 | $427,600 |
| Bachelor’s degree or higher | 64.9% | 57.4% | 42.9% |
| Foreign-born residents | 10.4% | 27.5% | 23.5% |
| Owner-occupied homes | 100.0% | 74.5% | 63.7% |
| Mean commute to work | 34.7 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 $232,727 · 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
- 106 units
- Renter occupied
- 0 units
- Vacancy rate
- 0%
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.
Community
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Nearby towns
- Rocky HillBorough
- Ten Mile RunCensus designated place
- GriggstownCensus designated place
- KingstonCensus designated place
- HeathcoteCensus designated place
- Kendall ParkCensus designated place
- HarlingenCensus designated place
- Montgomery TownshipTownship
- Pleasant PlainsCensus designated place
- Monmouth JunctionCensus 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
- Franklin Township
- Land area
- 4.17 sq mi
- Water area
- 0.08 sq mi
- Population
- 212 (2019-2023 estimate)
- Households
- 106
- Median age
- 59.4
- Median household income
- $232,727
- Median home value
- $643,500
- Median gross rent
- Not available yet
- Owner-occupied homes
- 100.0%
- Bachelor’s degree or higher
- 64.9%
- Foreign-born residents
- 10.4%
- Mean commute to work
- 34.7 minutes
- Census GEOID
- 3419490
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
- 08540
- 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.