Every ZIP code in the United States, with weather, radar, trivia and the numbers behind it. Five digits since 1963!

ZIP stands for Zone Improvement Plan. The codes went live on July 1, 1963.The lowest ZIP code is 00501 — the IRS in Holtsville, New York.The highest ZIP code is 99950, in Ketchikan, Alaska.Type 07734 into a calculator and turn it upside down: hELLO. It is Keansburg, New Jersey.12345 belongs to one company: General Electric in Schenectady, New York.The first digit is a region: 0 is New England and New Jersey, 9 is the West Coast, Alaska and Hawaii.Mr. ZIP, the cartoon mailman, was the mascot that sold the idea to America.ZIP+4 arrived in 1983 and can narrow a ZIP down to one side of one block.A ZIP code is a mail route, not a place: plenty of them cross county and even state lines.Play ZIP Hunt: guess the secret ZIP code of the day in six tries.
zipcodes.pro — CITY/NJ/PRINCETON

Princeton ZIP codes, New Jersey

Princeton, NJ has 5 ZIP codes (08540, 08542, 08541, 08543 and 08544) and area codes 609 and 640. The largest is 08540.

USPS city name
5 ZIP codes
Population
30,756
Area codes
609, 640

Princeton in numbers

About 30,756 people live in Princeton, in 9,300 households, the 31st-largest of New Jersey's 700 census places. The median household income is $192,079 a year, 85% above the New Jersey median of $103,556 (US: $80,734). The median owner-occupied home is valued at $1,050,600 (2.3 times the New Jersey median), and median gross rent is $2,636 a month. The median age is 28.5; 84.7% of adults 25 and over hold a bachelor's degree or higher (43.6% across New Jersey); the average commute takes 24 minutes.

Population30,756Princeton30,756
Households9,300Princeton9,300
Median age28.5Princeton28.5New Jersey40.1US 38.9
Median household income$192,079Princeton$192,079New Jersey$103,556US $80,734
Median home value$1,050,600Princeton$1,050,600New Jersey$454,400US $332,700
Median gross rent$2,636Princeton$2,636New Jersey$1,720US $1,413
Bachelor's degree or higher84.7%Princeton84.7%New Jersey43.6%US 35.7%
Mean commute24.2 minPrinceton24.2 minNew Jersey30.5 minUS 26.4 min
Population density1,714 / sq miPrinceton1,714 / sq mi

U.S. Census Bureau, American Community Survey 2020–2024 5-year estimates, for the census place Princeton. Survey estimates carry margins of error, wider for small places. Sources and methods.

ZIP codes addressed as Princeton

ZIP codes with the USPS city name Princeton
ZIP City Type Population Median income Median home
08540 Princeton , NJ Standard 50,388 $176,983 $767,900
08542 Princeton , NJ Standard 2,533 $105,524 $754,100
08541 Princeton , NJ No street area — — —
08543 Princeton , NJ No street area — — —
08544 Princeton , NJ Standard 4,392 — —

Map of Princeton ZIP codes

0854008542085410854308544

The ZIP codes of Princeton, NJ, shaded. Outlines are Census ZIP Code Tabulation Areas (2020), which approximate the mail routes; PO-box and single-address codes have no area and are not drawn. Click any area to open its ZIP code.

Towns near Princeton

The nearest larger towns are Trenton (90,338 people, 11 mi), New Brunswick (56,345 people, 15 mi) and Levittown, PA (50,926 people, 17 mi).

Towns near Princeton
TownPopulationDistance
Plainsboro Center 2,773 4.4 mi
Heathcote 7,717 5.2 mi
Lawrenceville 3,924 5.4 mi
Princeton Meadows 15,561 5.6 mi
Monmouth Junction 9,141 5.9 mi
Kendall Park 10,011 6.7 mi
Pennington 2,827 6.8 mi
Belle Mead 6,394 7.6 mi
Dayton 7,952 8.5 mi
The College of New Jersey 3,658 8.5 mi
Mercerville 13,535 8.6 mi
Franklin Park 13,211 8.9 mi
Blackwells Mills 10,301 9.2 mi
Hamilton Square 11,622 9.2 mi

More nearby: every ZIP code in Mercer County · New Jersey ZIP codes

Cite this page

zipcodes.pro. “Princeton, NJ ZIP codes.” Data release 2026-10-12. Retrieved 2026-10-20. https://zipcodes.pro/city/nj/princeton

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