South Toms River is a borough in Ocean County, New Jersey, United States. As of the 2010 United States Census, the borough's population was 3,684, reflecting an increase of 50 (+1.4%) from the 3,634 counted in the 2000 Census, which had in turn declined by 235 (-6.1%) from the 3,869 counted in the 1990 Census.
South Toms River was incorporated as a borough by an act of the New Jersey Legislature on March 28, 1927, from portions of Berkeley Township, based on the results of a referendum held on May 3, 1927. The borough was named for the neighboring Toms River Township and the Toms River, which were named for Capt. William Tom.
According to the United States Census Bureau, the borough had a total area of 1.21 square miles (3.13 km2), including 1.16 square miles (3.00 km2) of land and 0.05 square miles (0.13 km2) of water (4.21%).
The borough borders the Ocean County municipalities of Beachwood, Berkeley Township and Toms River Township.
South Toms River sits on the south side of the Toms River, across from Toms River Township.
The 2010 United States Census counted 3,684 people, 1,098 households, and 907 families in the borough. The population density was 3,146.7 inhabitants per square mile (1,214.9/km2). There were 1,160 housing units at an average density of 990.8 per square mile (382.6/km2). The racial makeup was 67.59% (2,490) White, 19.33% (712) Black or African American, 0.57% (21) Native American, 0.62% (23) Asian, 0.00% (0) Pacific Islander, 7.14% (263) from other races, and 4.75% (175) from two or more races. Hispanic or Latino of any race were 19.49% (718) of the population.
Of the 1,098 households, 36.7% had children under the age of 18; 52.3% were married couples living together; 21.9% had a female householder with no husband present and 17.4% were non-families. Of all households, 12.8% were made up of individuals and 5.6% had someone living alone who was 65 years of age or older.