Princeton, NJ Profile: Facts & Data


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Princeton, New Jersey - Basic Facts

The Princeton had a population of 30,232 as of July 1, 2018.

The primary coordinate point for Princeton is located at latitude 40.3581 and longitude -74.6664 in Mercer County. The formal boundaries for the Princeton (see map below) encompass a land area of 17.93 sq. miles and a water area of 0.43 sq. miles. Mercer County is in the Eastern time zone (GMT -5). The elevation is 213 feet.

The Princeton (GNIS ID: 2743608) 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.

The Princeton is located within Township of Princeton, a minor civil division (MCD) of Mercer County.

Alternate Unofficial Names for Princeton: Prince Town, Princes Town, Princetown, Stony Brook.

Jump to... (On This Page!)
  1. Princeton 2018 Demographic Data
  2. Growth Rates for Princeton (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.


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


Total Population 30,232
Population in Households 24,149
Population in Familes 18,798
Population in Group Qrtrs 6,083
Population Density2 1,686
Diversity Index3 62


Median Household Income $130,145
Average Household Income $191,122
Per Capita Income $71,810


Total Housing Units 10,918 (100%)
Owner Occupied HU 5,427 (49.7%)
Renter Occupied HU 4,630 (42.4%)
Vacant Housing Units 861 ( 7.9%)
Median Home Value $798,835
Average Home Value $909,794


Total Households 10,057
Average Household Size 2.4
Family Households 6,228
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 0.69% 0.46%
Households 0.67% 0.61%
Families 0.52% 0.51%
Median Household Income   2.32%
Per Capita Income   2.17%

Princeton, NJ - Peer Comparisons by Rank and Percentile

The table below compares Princeton 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 # 30 95th
Population Density # 363 34th
Diversity Index # 148 73rd
Median Household Income # 67 88th
Per Capita Income # 46 92nd

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

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