Explore East Rocky Hill, New Jersey, with this interactive street and satellite map. You can “grab” the East Rocky Hill, NJ street map and move it around to re-centre it. You can change between standard map view and satellite map view by clicking the small square in the bottom left-hand corner of the map. You can use the zoom buttons on the lower right side of the map to zoom in or out to street-level detail. You will find live weather, local and world news below.
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| City | East Rocky Hill |
| State | New Jersey (NJ) |
| County | Somerset |
| Country | United States of America |
| Timezone | Eastern Time (America/New_York) |
| Latitude | 40.4079 |
| Longitude | -74.6128 |
| Population | 235 |
| Density | 19.6 /km² |
| Incorporated | N/A |
| ZIP Code(s) | 08540 |
| Area Code | 609, 640 |
| County Seat | Somerville |
| School District | Franklin Township School District |
East Rocky Hill is a locality in Somerset County, New Jersey, United States. It is a small community with a population of 235. The population density is 19.6 people per km². East Rocky Hill is located at 40.4079°N, 74.6128°W. It observes the Eastern Time (America/New_York) timezone.
East Rocky Hill unfurls across a landscape of gently rising terrain, where the persistent New Jersey sun, particularly in the late afternoon, casts long, warm shadows across fields that transition from verdant pasture to the darker, richer hues of cultivated earth. It lies 4.8 miles north-north-east of Princeton, NJ (from Princeton, NJ: bearing 31°T), and is situated 9.7 miles north-east of Mercer. The air here, especially after a rain, carries the clean, earthy scent of loam and the fainter, sweeter perfume of distant wildflowers, a subtle testament to the fertile ground beneath. Mature oak and maple trees, their branches reaching like weathered hands, punctuate the horizon, their leaves rustling with a sound that seems to absorb the quiet hum of the surrounding countryside. This is a place where the land itself feels present, a tangible presence that shapes the contours of roads and the placement of homes, all under a sky that often displays a vast, unhurried expanse of blue. The history of East Rocky Hill is intrinsically tied to the agricultural bounty of Somerset County, a tradition that still echoes in the quiet lanes and the occasional weathered barn that stands as a sentinel to past harvests. For generations, the land has yielded its sustenance, fostering a local economy that, while diversifying, still holds a deep respect for its agrarian roots, with some farms continuing to thrive and supply local markets. The proximity to larger centers of commerce has offered a steady, if unglamorous, economic anchor, attracting a blend of long-time residents and those drawn to the persistent, unpretentious charm of the region. There are no grand monuments here, no roaring industries, but rather a quiet persistence, a character forged in the steady work of the land and the enduring rhythm of seasons, a place where the past is not a relic but a gentle undercurrent in the flow of everyday life.
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This page provides an embedded street and satellite map of East Rocky Hill, New Jersey — switch between views using the small square in the bottom left-hand corner of the map. Coordinates: 40.4079, -74.6128. Live weather conditions are sourced directly from the National Weather Service, with current observations and a 7-day forecast also powered by Open-Meteo. Real-time local news and world news feeds keep the page current, while a Wikipedia summary or an editorially written description provides background on East Rocky Hill and Somerset County.
Detailed location data for East Rocky Hill includes the ZIP code (08540), telephone area code (609, 640), county seat of Somerset County (Somerville), and school district assignment (Franklin Township School District). These are among the most commonly searched location details for any US city or town.
Location data is drawn from the USGS Geographic Names Information System (GNIS) and cross-verified against 2020 US Census records by coordinate proximity — ensuring the correct East Rocky Hill is identified even where the name is shared across multiple counties or states. Population figures are sourced from the 2020 US Census.
| Page generated | July 2026 |
| Location data | SimpleMaps US Cities Database; coordinates matched to USGS GNIS definitive data |
| Wikipedia validation | Article content matched to USGS GNIS coordinates via Wikipedia geosearch API. Location verified by proximity — not name matching alone. |