South River, NJ Profile: Facts, Map & Data


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South River, New Jersey - Basic Facts

The Borough of South River had a population of 16,107 as of July 1, 2016. South River ranks in the upper quartile for Population Density and Diversity Index when compared to the other cities, towns and Census Designated Places (CDPs) in New Jersey. See peer rankings below.

The primary coordinate point for South River is located at latitude 40.4457 and longitude -74.3785 in Middlesex County. The formal boundaries for the Borough of South River (see map below) encompass a land area of 2.77 sq. miles and a water area of 0.15 sq. miles. Middlesex County is in the Eastern time zone (GMT -5). The elevation is 82 feet.

The Borough of South River (GNIS ID: 885403) has a C5 Census Class Code which indicates an active incorporated place that is independent of any county subdivision and serves as a county subdivision equivalent. It also has a Functional Status Code of "A" which identifies an active government providing primary general-purpose functions.

Beneath the boundary map are tables with South River population, income and housing data, five-year growth projections and peer comparisons for key demographic data. The estimates are for July 1, 2016.

Alternate Unofficial Names for South River: Washington.

Neighborhood Data

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Borough of South River, NJ Boundary Map

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South River, NJ Data & Demographics (As of July 1, 2016)


Total Population 16,107
Population in Households 16,096
Population in Familes 13,414
Population in Group Qrtrs 11
Population Density1 5,817
Diversity Index2 66


Total Households 5,634
Average Household Size 2.86
Family Households 3,997
Average Family Size 3


Total Housing Units 6,023 (100%)
Owner Occupied HU 3,511 (58.3%)
Renter Occupied HU 2,123 (35.2%)
Vacant Housing Units 389 ( 6.5%)
Median Home Value $298,237
Average Home Value $334,470


Median Household Income $67,119
Average Household Income $82,288
Per Capita Income $28,809
  (Compound Annual Growth Rates)


2010-2015 2015-2020
Population 0.1% 0.32%
Households -0.05% 0.22%
Families -0.08% 0.2%
Median Household Income   2.68%
Per Capita Income   1.48%
1) Population Density = Total Population per square mile.
2) The Diversity Index is a scale of 0 to 100 that represents the likelyhood that two persons, chosen at random from the same area, belong to different race or ethnic groups. If an area's entire population belongs to one race AND one ethnic group, then the area has zero diversity. An area's diversity index increases to 100 when the population is evenly divided into two or more race/ethnic groups.
Based on Census 2010 counts, the Diversity Index for the United States was 60.6 and it is expected to increase to 64.8 by July 1, 2018.

South River, NJ - Peer Comparisons by Rank and Percentile

The table below compares South River to the other 545 incorporated cities, towns and CDPs in New Jersey by rank and percentile using July 1, 2016 data. The location Ranked # 1 has the highest value. A location that ranks higher than 75% of its peers would be in the 75th percentile of the peer group.

Variable Description Rank Percentile
Total Population # 68 88th
Population Density1 # 86 84th
Diversity Index2 # 116 79th
Median Household Income # 339 38th
Per Capita Income # 418 23rd

Additional comparisons and rankings can be made with a VERY EASY TO USE New Jersey Census Data Comparison Tool.