Iselin, NJ Profile: Facts & Data


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Iselin, New Jersey - Basic Facts

The Iselin Census Designated Place had a population of 19,431 as of July 1, 2018. Iselin 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 Iselin is located at latitude 40.5693 and longitude -74.3211 in Middlesex County. The formal boundaries for the Iselin Census Designated Place (see map below) encompass a land area of 3.19 sq. miles and a water area of 0 sq. miles. Middlesex County is in the Eastern time zone (GMT -5). The elevation is 66 feet.

The Iselin Census Designated Place (GNIS ID: 2389973) has a U1 Census Class Code which indicates a census designated place with an official federally recognized name. It also has a Functional Status Code of "S" which identifies a statistical entity.

The Iselin Census Designated Place is located within Township of Woodbridge, a minor civil division (MCD) of Middlesex County.

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  1. Iselin 2018 Demographic Data
  2. Growth Rates for Iselin (Historical & 5-Year Forecast)
  3. Peer Comparisons (Rank and Percentile)
  1. Neighborhoods Demographics (Home Values, Household Income, etc.)
  2. New Jersey Research Tools (Easy Tools & Current Data)
  3. New Jersey Data Comparison Tool - 2018 Demographics

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Boundary Maps, Demographic Data, School Zones Review maps and data for the neighborhood, city, county, ZIP Code, and school zone. July 1, 2018, data includes home values, household income, percentage of homes owned, rented or vacant, etc.


Iselin, NJ Data & Demographics (As of July 1, 2018)


Total Population 19,431
Population in Households 19,427
Population in Familes 17,282
Population in Group Qrtrs 4
Population Density2 6,092
Diversity Index3 67


Median Household Income $92,975
Average Household Income $106,262
Per Capita Income $36,114


Total Housing Units 6,924 (100%)
Owner Occupied HU 4,200 (60.7%)
Renter Occupied HU 2,376 (34.3%)
Vacant Housing Units 348 ( 5.0%)
Median Home Value $322,521
Average Home Value $335,419


Total Households 6,576
Average Household Size 2.95
Family Households 4,973
Average Family Size 3
  1. Demographics are point estimates for July 1st of the current year and each for the forecast years. See References for more information.
  2. Population Density = Total Population per square mile.
  3. The Diversity Index is a scale of 0 to 100 that represents the likelihood 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.


2010-2018 2018-2023
Population 0.47% 0.36%
Households 0.24% 0.21%
Families 0.2% 0.2%
Median Household Income   1.82%
Per Capita Income   2.32%

Iselin, NJ - Peer Comparisons by Rank and Percentile

The table below compares Iselin to the other 545 incorporated cities, towns and CDPs in New Jersey by rank and percentile using July 1, 2018 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 # 53 90th
Population Density # 78 86th
Diversity Index # 116 79th
Median Household Income # 199 64th
Per Capita Income # 336 39th

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