South Toms River, NJ has a population of 3,731 and is the 7,760th largest city in the United States. The population density is 3,223 per sq mi which is 322234% higher than the New Jersey average and 3458% higher than the national average. The median age in South Toms River is 31 which is approximately 21% lower than the New Jersey average of 40. In South Toms River, 46% of the population over 15 years of age are married, 81% speak English and 16% speak Spanish. 74% of South Toms River residents were born in New Jersey, 15% were born out of state, 4% were born outside of the United States and 7% were foreign born.