Monmouth Junction, NJ Profile: Facts, Map & Data


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Monmouth Junction, New Jersey - Basic Facts

The Monmouth Junction Census Designated Place is a community or populated place (Class Code U5) located in Middlesex County at latitude 40.3803 and longitude -74.5432. Middlesex County is in the Eastern time zone (GMT -5). The elevation is 102 feet.

The formal official name is the Monmouth Junction Census Designated Place, but most people and references simply refer to it as Monmouth Junction, New Jersey.

The U5 Census Class Code for Monmouth Junction indicates a populated place that is also a census designated place with the same name.. The Census Designated Place has a Functional Status Code "S" which identifies a statistical entity.

The formal boundaries for the Monmouth Junction Census Designated Place (see map below) encompass a land area of 1.47 sq. miles and a water area of 0.01 sq. miles.

Monmouth Junction Census Designated Place, NJ Boundary Map


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Monmouth Junction, NJ Data & Demographics (As of July 1, 2014)


Total Population 3,168
Population in Households 3,168
Population in Familes 3,003
Population in Group Qrtrs 0
Population Density1 2,158
Diversity Index2 63


Total Households 985
Average Household Size 3.22
Family Households 868
Average Family Size 3


Total Housing Units 989 (100%)
Owner Occupied HU 919 (92.9%)
Renter Occupied HU 66 ( 6.7%)
Vacant Housing Units 4 ( 0.4%)
Median Home Value $397,547
Average Home Value $448,069


Median Household Income $117,115
Average Household Income $154,453
Per Capita Income $48,462
  (Compound Annual Growth Rates)


2010-2014 2014-2019
Population 2.21% 1.73%
Households 2.07% 1.65%
Families 1.91% 1.69%
Median Household Income   3.01%
Per Capita Income   3.81%
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.


Monmouth Junction, NJ - Peer Comparisons by Rank and Percentile

The table below compares Monmouth Junction to the other 545 incorporated cities, towns and CDPs in New Jersey by rank and percentile using July 1, 2014 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 # 338 38th
Population Density1 # 314 43rd
Diversity Index2 # 119 79th
Median Household Income # 79 86th
Per Capita Income # 120 78th

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