Princeton, NJ 08540 ZIP Code Profile

Related Place Profiles:
Princeton, NJ

ZIP Code 08540: Basic Data & USPS Preferred City Name

Preferred Name, USPS
Princeton, NJ 08540

Not Acceptable, USPS
Princeton Township, NJ 08540
Princeton Twp, NJ 08540

  • ZIP Code Type: STANDARD
  • County: Mercer County
  • Centroid: Latitude 40.367, Longitude -74.67
  • Time Zone: Eastern Time Zone (UTC -5 hours)
  • Observes DST: Yes

ZIP Code 08540 has segments in 3 Counties (Mercer, Middlesex, Somerset).

  • Businesses Addresses: 1,663
  • PO Box Addresses: 0
  • Residential Addresses: 18,528
    • Multi-Family Addresses: 3,114
    • Single Family Addresses: 15,414

The ZIP Code maps and database are updated 4 times per year.
Database updated: May 1, 2018, Maps updated: February 1, 2018.

EXTREMELY LOCAL Demographic Data

Address Based Hyperlocal Data Input an address and get data & demographics for the pertinent census block group (CBG), a searchable map and a customized directory. The CBG is the smallest geographical unit used by the Census Bureau for reporting demographic data.


08540 ZIP Code Map

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Princeton, NJ 08540 Data & Demographics (As of July 1, 2017)


Total Population 45,324
Daytime Population: Workers 103,883
Daytime Population: Residents 21,668
Total Daytime Population (TDP) 125,551
Ratio TDP/Total Population1 2.77
Population in Households 44,035
Population in Familes 36,355
Population in Group Qrtrs 1,289
Population Density2 859
Diversity Index3 62


Median Household Income $130,016
Average Household Income $182,666
Per Capita Income $72,198


Total Housing Units 18,751 (100%)
Owner Occupied HU 11,066 (59.0%)
Renter Occupied HU 6,575 (35.1%)
Vacant Housing Units 1,110 ( 5.9%)
Median Home Value $599,970
Average Home Value $667,382


Total Households 17,641
Average Household Size 2.5
Family Households 11,831
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 0.32% 0.49%
Households 0.3% 0.46%
Families 0.26% 0.45%
Median Household Income   2.98%
Per Capita Income   2.38%

Princeton, NJ 08540 - Peer Comparisons by Rank and Percentile

The table below compares 08540 to the other 579 ZIP Codes 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 # 34 94th
Population Density # 399 31st
Diversity Index # 167 72nd
Median Household Income # 66 89th
Per Capita Income # 36 94th

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

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