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ZIP Code Database - Facts & Stats

Data Last Updated: May 1, 2022

ZIP Codes for City of Princeton, NJ

Princeton, NJ Covers 5 ZIP Codes

ZIP CodeTypeCountyPopulationArea Code(s)
ZIP Code 08540StandardMercer47,115609 / 640
ZIP Code 08541UniqueMercer0609 / 640
ZIP Code 08542StandardMercer5,189609 / 640
ZIP Code 08543P.O. BoxMercer0609 / 640
ZIP Code 08544UniqueMercer0609 / 640

Timezone(s):Eastern (GMT -05:00)
Counties:MERCER, NJ
Population:12,307 (More Details)
Male Population:6,290
Female Population:6,017
Median Age:23
ZIP Codes:5
Area Codes:2
Total Area:229 square miles (county)
Land Area:225 square miles (county)
Water Area:4 square miles (county)

Princeton, NJ Demographic Information *

Total population12,307
Male population6,290
Female population6,017
Median age (years)22.9
White Population8,870
Black Population793
Indian Population22
Asian Population1,663
Hawaiian Population20
Hispanic Population1,268
Median age (Male)22.8
Median age (Female)23
Total households3,161
Family households (families)1,644
Average household size2.21
Average family size2.96
Total housing units3,488
* Demographic data is based on 2010 Census. Products


  1. U.S. Postal Service [Last Updated: 5/1/2022],
  2. Internal Data Creation [Last Updated: 5/1/2022],
  3. U.S. Geological Survey [Updated as needed],
  4. U.S. Census [Updated Yearly],
  5. U.S. Census 2010 [Decennial] [Last Updated: 1/1/2010],