Princeton, NJ

Single-footprint Census roll-up for Princeton, NJ: 2 USPS ZIPs, population 52,304. Open the primary ZIP for household income, housing tenure, and commute from ACS 2023 5-Year Estimates.

U.S. Census Bureau, SimpleMaps US ZIP Code Database, delivery-area ZIP coverage

ACS city ledger plate

Sheet PRINCETON-NJ · Princeton, NJ 2 ZIPs · 52,304 pop · #1119/25278 · Mercer County

INC-TOP · RANK-TOP · ABOVE-PEER · BOOK-FEW · OWN-LOW · POP-SMALL · SPREAD-MOD · HOME-TOP

  • INC-TOP $141,254
  • RANK-TOP #1119/25278
  • ABOVE-PEER over Titusville
  • BOOK-FEW 2 ZIPs
  • OWN-LOW 48% owners
  • POP-SMALL 52,304
  • SPREAD-MOD 08542→08540
  • HOME-TOP $761,000

Nearest income peer: Titusville, NJ ( $12,738 income $)

Instrument codes from this city’s ACS household income, national rank, county-peer gap, ZIP book, owner tenure, population scale, intra-city income spread, and home-value band, not a moving recommendation.

Income neighbourhood around Princeton

Lowest/highest poles plus county-sharing cities nearest Princeton on average ZIP median household income. Full ladder: /cities.

median HH income

What this shows County-sharing peers only, not the full US city board. Open a near peer when the gap is small; open the poles when the mosaic is wide.

Source U.S. Census Bureau · ACS 5-Year Estimates As of 2026-08-25

National city placement

According to ACS 5-Year Estimates, Princeton, NJ sits among US cities with a top-decile household income, on a small-city population base, across a handful of delivery areas.

Top 4%
household income vs 25,278 US cities
52,304
city population (Census)
2
USPS ZIP codes covered
$141,254
avg ZIP median income

Income percentile ranks this city's average ZIP median household income against 25,278 US cities with ACS income on at least one ZIP. Scale and ZIP-spread words come from Census population and USPS ZIP coverage.

High-income footprint on only 2 ZIPs: the city page and the ZIP page nearly coincide. Headline income $141,254 and home value $761,000 should be read as near-neighborhood numbers ; bachelor's attainment averages 76.7%.

Owner-occupancy is comparatively low (48.0%) for this income tier, rent $2,358 may matter more than the home-value average.

Within New Jersey, Secaucus is the closest lower-income city and Milltown the closest higher-income city by average ZIP household income. Their 1 and 1 ZIP footprints are the immediate statewide comparison set for Princeton.

Within-city ZIP comparison

Where the ZIP codes inside Princeton differ

Income is the clearest internal divide in Princeton. ZIP 08542 reports $105,524 in median household income, while ZIP 08540 reports $176,983. The city average sits between those published endpoints, so it is a starting point rather than a substitute for the ZIP records.

Income high-to-low ratio
1.7×

08542 to 08540

Home-value high-to-low ratio
1.0×

08542 to 08540

Poverty-rate spread
4 points

08542 to 08540

Derived from the published ACS 2023 ZIP-level records shown on this site. A high-to-low ratio compares the highest and lowest available ZIP values; it is not a score or forecast.

Population concentration

ZIP 08540 swallows Princeton's short list

Across only 2 ZIPs, 08540 still holds about 90% of Princeton's 52,304 residents. The secondary codes are thin edges; treat the city average as a near-reprint of the lead ZIP.

Census ZBP business roll-up

Employer-heavy short list in Princeton

Citywide ZBP: 2,551 establishments, 52,835 employees , annual payroll $6,519,890k (~49 establishments per 1,000 residents) across 2 of 2 ZIPs. Peak business ZIP 08540 (2,180 units) ; leading NAICS Professional, scientific, and technical services (847) · also Health care and social assistance · Finance and insurance .

View your shortlist →

ZIP Codes in Princeton, NJ

These ZIP codes sit in Mercer County, which covers 22 ZIP codes in all; 2 of them fall in Princeton. See the Mercer County roll-up →

Princeton lands mid-pack among the 8 cities sharing Mercer County: Princeton Junction, Pennington and Hopewell earn more and Trenton, Lawrence Township and Hightstown earn less. Princeton Junction marks the far end of that range at $224,213, 59% above Princeton.

Side-by-side: Compare 08540 vs 08542 →

ZIP Code Population Median income Establishments Density
08540 47,115 $176,983 2,180 350
08542 5,189 $105,524 371 3,868

Princeton roll-ups here are for informational purposes only and do not constitute financial or relocation advice. ACS and Census ZBP figures are estimates; confirm the current table against Census before a money or move decision involving Princeton, .