Princeton Junction, NJ Profile: Facts, Map & Data


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Princeton Junction, New Jersey - Basic Facts

The Princeton Junction Census Designated Place had a population of 2,464 as of July 1, 2017.

The primary coordinate point for Princeton Junction is located at latitude 40.3233 and longitude -74.6212 in Mercer County. The formal boundaries for the Princeton Junction Census Designated Place (see map below) encompass a land area of 1.83 sq. miles and a water area of 0.03 sq. miles. Mercer County is in the Eastern time zone (GMT -5). The elevation is 85 feet.

The Princeton Junction Census Designated Place (GNIS ID: 2389708) 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 Princeton Junction Census Designated Place is located within Township of West Windsor, a minor civil division (MCD) of Mercer County.

Beneath the boundary map are tables with Princeton Junction population, income and housing data, five-year growth projections and peer comparisons for key demographic data. The estimates are for July 1, 2017.

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Princeton Junction Census Designated Place, NJ Boundary Map

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Boundary Maps: Township of West Windsor | Mercer County | New Jersey Counties

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Princeton Junction, NJ Data & Demographics (As of July 1, 2017)


Total Population 2,464
Daytime Population: Workers 1,725
Daytime Population: Residents 1,154
Total Daytime Population (TDP) 2,879
Ratio TDP/Total Population1 1.17
Population in Households 2,453
Population in Familes 2,142
Population in Group Qrtrs 11
Population Density2 1,349
Diversity Index3 54


Median Household Income $145,810
Average Household Income $189,060
Per Capita Income $71,338


Total Housing Units 945 (100%)
Owner Occupied HU 688 (72.8%)
Renter Occupied HU 238 (25.2%)
Vacant Housing Units 19 ( 2.0%)
Median Home Value $561,875
Average Home Value $547,565


Total Households 926
Average Household Size 2.65
Family Households 698
Average Family Size 3
  1. If the ratio of the TDP to Total Population is greater than 1, the location gains population during the day when commuting workers are present. If the ratio is less than 1, the location is more of a bedroom community where people commute to another place for work.
  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.


2010-2017 2017-2022
Population -0.01% 0.06%
Households 0.07% 0.11%
Families 0.04% 0.09%
Median Household Income   1.06%
Per Capita Income   1.87%

Princeton Junction, NJ - Peer Comparisons by Rank and Percentile

The table below compares Princeton Junction to the other 545 incorporated cities, towns and CDPs in New Jersey by rank and percentile using July 1, 2017 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 # 371 32nd
Population Density # 393 28th
Diversity Index # 192 65th
Median Household Income # 35 94th
Per Capita Income # 38 93rd

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

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