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| City | South River |
| State | New Jersey (NJ) |
| County | Middlesex |
| Country | United States of America |
| Timezone | Eastern Time (America/New_York) |
| Latitude | 40.446495 |
| Longitude | -74.385983 |
| Population | 16,124 |
| Density | 2219.2 /km² |
| Incorporated | N/A |
| ZIP Code(s) | 08882 |
| Area Code | 908 |
| County Seat | New Brunswick |
| School District | South River Borough School District |
South River is a locality in Middlesex County, New Jersey, United States. It has a population of 16,124. The population density is 2219.2 people per km². South River is located at 40.4465°N, 74.3860°W. It observes the Eastern Time (America/New_York) timezone.
South River lies at the heart of Middlesex County, a place where the gentle slopes of the land meet the subtle curve of the waterway that gives it its name. It lies 1.6 miles south-west of Sayreville, NJ (from Sayreville, NJ: bearing 236°T), and is situated 5.2 miles south-south-east of Edison. The air here, especially in the late afternoon, carries a certain weight, a humid sweetness hinting at the proximity of larger bodies of water, and the light, as it slants across the tidy streets and the well-tended lawns, seems to soften the edges of everything it touches. Oak trees, old and broad-shouldered, stand sentinel along the avenues, their leaves whispering secrets to the breeze, while the houses, a mix of classic clapboard and more modern constructions, reflect a quiet continuity, a sense of lives lived and continuing. The terrain itself is not dramatic, but possesses a grounding, earthy character, a comfortable undulation that feels familiar and welcoming, a place where the very soil seems to remember generations of footsteps. The history of South River is inextricably tied to the industries that once pulsed through its veins, particularly the manufacturing and crafts that drew people to its banks. For years, the hum of production was a constant soundtrack, a testament to the hard work and ingenuity of its residents, fostering a strong sense of community built on shared endeavor. While those days of heavy industry have largely passed, the echoes remain, influencing the local economy which now leans towards service industries and the continued importance of small businesses that give South River its distinctive local flavor. The proximity to the river itself, once a vital artery for commerce, now offers a different kind of solace, a place for quiet contemplation and recreation, a reminder of the natural beauty that underpins the town's enduring character.
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This page provides an embedded street and satellite map of South River, New Jersey — switch between views using the small square in the bottom left-hand corner of the map. Coordinates: 40.446495, -74.385983. 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 South River and Middlesex County.
Detailed location data for South River includes the ZIP code (08882), telephone area code (908), county seat of Middlesex County (New Brunswick), and school district assignment (South River Borough 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 South River 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. |