South River, New Jersey Population 2026
Updated April 2026 · US Census ACS 2023 5-Year Estimates
The population of South River, New Jersey is 16,007 as of the 2023 American Community Survey, making it the 73rd-largest city in New Jersey. The median household income is $101,853, the median home value is $382,500, and the median age is 36.5.
The population has grown 2.1% since 2010 (16,051 → 16,392).
16,007
Population
5748
People / sq mi
$101,853
Median Income
$382,500
Median Home Value
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South River covers 2.8 sq mi of land at 5748 people per square mile.
About South River, NJ
South River stands apart on settlement density — it is among the most densely settled of US cities, at roughly 5,748 people per square mile. With 16,007 residents, South River is a city in New Jersey.
The typical household earns $101,853 a year, above the US median of $78,538. About 9.5% of residents live below the federal poverty level, below the national 12.4%. The typical home is valued at $382,500, with typical rent around $1,599.
Degree attainment is mid-range for US cities: 31.1% of adults hold a four-year degree, below the national 35.0%. Just 6.6% of workers are home-based, below the national 14.0%, and the average commute runs about 33 minutes each way.
That density explains much of the rest of the profile in South River: denser places lean toward renting, shorter commutes by transit, and a younger working-age mix.
South River borough Population History (2010-2024)
The city of South River borough had a population of 16,051 in 2010 and 16,392 in 2024, a 2.1% growth over 14 years. The peak was 16,392 in 2024. Average annual growth rate: 0.15%.
16,392
Population (2024)
16,051
Population (2010)
16,392
Peak (2024)
0.15%
Avg Annual Growth
| Year | Population |
|---|---|
| 2010 | 16,051 |
| 2011 | 16,091 |
| 2012 | 16,128 |
| 2013 | 16,121 |
| 2014 | 16,145 |
| 2015 | 16,131 |
| 2016 | 16,057 |
| 2017 | 16,034 |
| 2018 | 15,948 |
| 2019 | 15,779 |
| 2020 | 16,050 |
| 2021 | 15,999 |
| 2022 | 16,012 |
| 2023 | 16,164 |
| 2024 | 16,392 |
Race & Ethnicity
| White | 58.1% |
| Black or African American | 11.8% |
| Asian | 0.0% |
| Hispanic or Latino (any race) | 1.7% |
| Two or More Races | 0.0% |
Economy & Income
$101,853
Median Household Income
$42,195
Per Capita Income
9.5%
Poverty Rate
6.3%
Unemployment Rate
Housing
$382,500
Median Home Value
$1,599
Median Rent
65.7%
Owner-Occupied
Education
86.4%
High School+
31.1%
Bachelor's+
Commute
1.9%
Drive Alone
72.4%
Public Transit
6.6%
Work From Home
32.9 min
Avg Commute
Community Profile
13.5%
Foreign Born
56.7%
Non-English at Home
3.9%
Veterans
10.2%
With Disability
92.8%
Health Insurance
95.3%
Internet Access
Employment by Industry
| Professional, Scientific & Management | 25.5% |
| Finance, Insurance & Real Estate | 12.0% |
| Construction | 10.7% |
| Retail Trade | 7.9% |
| Manufacturing | 7.8% |
| Information | 6.7% |
| Arts, Entertainment & Food Services | 6.3% |
| Education, Health Care & Social Services | 6.2% |
| Public Administration | 3.5% |
| Transportation & Warehousing | 0.8% |
| Agriculture & Mining | 0.4% |
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Frequently Asked Questions
South River, New Jersey has a population of 16,007 according to the US Census Bureau's 2023 American Community Survey 5-year estimates, making it the 73rd-largest city in New Jersey.
The median household income in South River, New Jersey is $101,853, with 9.5% of residents living below the federal poverty level.
The median home value in South River, New Jersey is $382,500, with median monthly rent at $1,599 and a homeownership rate of 65.7%.
The median age in South River, New Jersey is 36.5 years. The population is 49.0% male and 51.0% female.
The population has grown 2.1% since 2010 (16,051 → 16,392).
South River borough, NJ Climate
South River borough, NJ has an average annual temperature of 11.8°C (53°F) and receives about 1226 mm of precipitation per year. The warmest month is July and the coldest is January. Figures are 1970–2000 climate normals.
11.8°C
Avg Temp
1226
Precip (mm/yr)
Jul
Hottest Month
Jan
Coldest Month
| Month | Avg (°C/°F) | Precip |
|---|---|---|
| January | -1° / 30° | 98 mm |
| February | 0° / 33° | 76 mm |
| March | 5° / 41° | 103 mm |
| April | 11° / 51° | 103 mm |
| May | 16° / 61° | 113 mm |
| June | 21° / 70° | 98 mm |
| July | 24° / 75° | 125 mm |
| August | 23° / 74° | 114 mm |
| September | 19° / 67° | 108 mm |
| October | 13° / 55° | 89 mm |
| November | 8° / 46° | 102 mm |
| December | 2° / 36° | 97 mm |
1970–2000 normals from WorldClim 2.1 (~9 km grid). Precipitation can be less precise near mountains or coastlines, where rainfall varies sharply over short distances.
Best time to visit South River borough, NJ
The most comfortable months to visit South River borough, NJ are typically June, September and August, when temperatures are mildest and rainfall is relatively low. The hottest month is July (around 30°C high). The coldest is January (near -6°C low). July is usually the wettest month.
Where to stay near South River
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Population, race, income, age, and trends across New Jersey
Data from the American Community Survey (ACS) 5-Year estimates.
Source: U.S. Census Bureau ACS, 2026.