South River Map
South River is a Borough in Middlesex County, New Jersey, United States. As of the United States 2000 Census, the borough population was 15,322.
What is now South River was originally formed as the town of Washington within East Brunswick Township on February 23, 1870. South River was incorporated as an independent borough by an Act of the New Jersey Legislature on February 28, 1898, replacing Washington town.
South River is located at 40°26?40?N 74°22?54?W / 40.444356°N 74.381756°W / 40.444356; -74.381756 (40.444356, -74.381756). Elevation is 80 feet.
Nearby cities include Sayreville, Middlesex, Kendall Park, Port Reading, Avenel.