South River Flag

South River

County Seat:
No
Area (mi²):
2.785
State:
New Jersey

South River is a borough located in Middlesex County, New Jersey. South River has a 2026 population of 16,563. South River is currently growing at a rate of 0.52% annually and its population has increased by 3.2% since the most recent census, which recorded a population of 16,050 in 2020.

The median household income in South River is $96,147 with a poverty rate of 12.54%. The median age in South River is 37 years: 35.3 years for males, and 38.8 years for females. For every 100 females there are 106.1 males.

16.6K
Total Population
5,947
Density (mi²)
86 0.52%
Growth

South River Population

South River Population

Data after 2023 is projected based on recent change

Year ↓
Population
Growth
Annual Change
202616,563860.52%
202516,477850.52%
202416,3922281.41%
202316,1641520.95%
202216,012130.08%
202115,999-51-0.32%
202016,050-70-0.43%
201915,776-170-1.07%
201815,946-88-0.55%
201716,034-25-0.16%
201616,059-76-0.47%
201516,135-14-0.09%
201416,149230.14%
201316,126-7-0.04%
201216,133370.23%
201116,096410.26%
201016,055470.29%
200015,3221,63011.9%
199013,692-669-4.66%
198014,361-1,067-6.92%
197015,4282,03115.16%
196013,3972,08918.47%
195011,3085945.54%
194010,714-45-0.42%
193010,7594,16363.11%
19206,5961,82438.22%
19104,7721,98070.92%
19002,79200%

Median Age

Overall: 37 years
Female: 38.8 years
Male: 35.3 years

South River Adults

There are 12,056 adults, (2,155 of whom are seniors) in South River.

Sex Ratio

Female: 7,824 (48.5%)
Male: 8,300 (51.5%)

Demographics

The racial composition of South River includes 56.8% White, 15.25% other race, 14.71% Black or African American, 4.21% Asian, and smaller percentages for Native American, Native Hawaiian or Pacific Islander and multiracial populations.

Population by Race

Race
Population ↓
Percentage (of total)
White9,15856.8%
Other race2,45915.25%
Black or African American2,37214.71%
Two or more races1,3098.12%
Asian6794.21%
Native American1190.74%
Native Hawaiian or Pacific Islander280.17%
Race
Population ↓
Percentage (of total)
Other race2,04712.7%
Two or more races8965.56%
White6403.97%
Black or African American2011.25%
Native American1190.74%
Asian410.25%
Race
Population ↓
Percentage (of total)
White8,51852.83%
Black or African American2,17113.46%
Asian6383.96%
Two or more races4132.56%
Other race4122.56%
Native Hawaiian or Pacific Islander280.17%

South River Marital Status

Economics and Income Statistics

South River 's average per capita income is $56,188. Household income levels show a median of $96,147. The poverty rate stands at 12.54%.

Families: A family includes the owner or renter of the home along with everyone related to them - whether through birth, marriage, or adoption. This includes relatives like spouses, children, parents, siblings, grandparents, and any other family members.
Households: A household includes all the people who occupy a housing unit (such as a house or apartment) as their usual place of residence.
Non Families: A nonfamily household is either someone living alone or when the owner/renter lives with people they aren't related to, like roommates.
Name
Median ↓
Mean
Married Families$133,157-
Families$109,773$130,362
Households$96,147$121,707
Non Families$61,613$87,484

$56,188

Average Income

$96,147

Median Household Income

12.54%

Poverty Rate

Nearby Cities

Sources

  1. US Census State Population Estimates - Most recent state estimates from the Census Bureau's Population Estimates Program
  2. US Census County Population Estimates - Most recent county estimates from the Census Bureau's Population Estimates Program
  3. American Community Survey (2009 - 2013)
  4. Census QuickFacts
  5. Historical Populations of States and Counties (1790 - 1990)