ZIP Code 08540 Quick Stats

ZIP Code NamePrinceton
Primary CountyMercer County
ZIP Code TypeStandard
Population (2022)48,513
Area Code(s)609 / 640 / / 732 / 848 / 908
Current Time

ZIP Code 08540 Map

08540 Demographics

08540 can be classified socioeconomically as Upper Middle Class class compared to other ZIP Codes in New Jersey based on Median Household Income and Average Adjusted Gross Income. The majority race/ethnicity residing in 08540 is White. The majority race/ethnicity attending public schools in 08540 is White. The current unemployment level in 08540 is 2.9%.

Population Growth Rate-0.92%
Population Density932 People per Square Mile
Total Households16,216
Percentage High Income Households27.7%
Median Household Income (2021)$163,074
Average Adjusted Gross Income (2020)$240,610
Current Unemployment Rate (April 2024)2.9%
Majority Race/EthnictyWhite - 57.96%
Public School Majority Race/EthnictyWhite - 47.33%

08540 Race/Ethnicty Breakdown

Native American70.01%
Hawaiian/Pac. Islander390.08%

08540 Public School Race/Ethnicty Breakdown

Native American10.03%
Hawaiian/Pac. Islander30.08%

08540 Educational Attainment Levels

Highest Education Level AttainedTotalPercentage
Less Than 1 Year of College7732.66%
Bachelor Degree8,50429.23%
High School Diploma2,2067.58%
No High School Diploma1210.42%
GED or Alternate2360.81%
1 or More Years of College1,9196.6%
Associates Degree9063.11%
Masters Degree8,55629.41%
Professional Degree2,2697.8%
Doctorate Degree3,60312.38%

08540 Geography

08540 Politics

US Congressional Districts in 08540
New Jersey State Senate Districts in 08540
New Jersey State Assembly Districts in 08540

08540 Weather and Climate Data

Plant Hardiness ZoneZone 6b: -5F to 0F
Average First Frost DateOctober 21 - 31
Average Last Frost DateApril 21 - 31
Koppen-Geiger Climate ZoneDfa - Humid Continental Hot Summers
Ecoregion64b - Trap Rock and Conglomerate Uplands

08540 Annual Climate Data

Avg Min Temp (°F)21223039495863625442342642
Avg Max Temp (°F)38415162728186847665544363
Avg Precip (In.)3.822.833.913.94.63.775.094.284.493.553.83.7747.82

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