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#96 Most Diverse Suburbs in New Jersey

South River is a borough in Middlesex County. 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. It was named after the South River, which marks the borough’s eastern and northeastern boundary.

The borough borders the Middlesex County communities of East Brunswick and Sayreville. Unincorporated communities, localities and place names located partially or completely within the borough include Newton Heights, which is situated along the border of South River and East Brunswick.

As of the 2010 United States Census, the borough’s population was 16,008, reflecting an increase of 686 (+4.5%) from the 15,322 counted in the 2000 Census, which had in turn increased by 1,630 (+11.9%) from the 13,692 counted in the 1990 Census.

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Local News & Advice

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