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Data updated 2026-10-07

ZIP Code 08542 · Princeton, NJ

Mercer County · pop 2,533 · ACS 2020–2024

The median household income in ZIP Code 08542 (Princeton, NJ) is $105,524, higher than 41% of the other ZIP Codes in New Jersey.

Its FHFA home price index changed +11.7% over the five years to 2022.

01 — Where it stands

$105,524
Median household income
± $25,710 MOE
$754,100
Median home value
± $183,836 MOE
$2,497
Median gross rent
4.2%
Poverty rate
Percentiles for ZIP Code 08542 within Mercer County, New Jersey and the U.S.
MeasureValueCounty percentileState percentileU.S. percentile
Median household income$105,524 ± $25,71038th percentile (22 ZIP Codes compared)41st percentile (529 ZIP Codes compared)82nd percentile (22,922 ZIP Codes compared)
Per capita income$72,58280th percentile (22 ZIP Codes compared)77th percentile (529 ZIP Codes compared)94th percentile (22,922 ZIP Codes compared)
Poverty rate4.2%19th percentile (22 ZIP Codes compared)31st percentile (529 ZIP Codes compared)9th percentile (22,922 ZIP Codes compared)
Adults with a bachelor’s degree or higher70.7%85th percentile (22 ZIP Codes compared)88th percentile (529 ZIP Codes compared)96th percentile (22,922 ZIP Codes compared)
Owner-occupied homes32.3%14th percentile (22 ZIP Codes compared)7th percentile (529 ZIP Codes compared)3rd percentile (22,922 ZIP Codes compared)
Housing vacancy rate6.9%76th percentile (22 ZIP Codes compared)74th percentile (529 ZIP Codes compared)35th percentile (22,922 ZIP Codes compared)
Median home value$754,100 ± $183,83685th percentile (22 ZIP Codes compared)84th percentile (528 ZIP Codes compared)93rd percentile (22,833 ZIP Codes compared)
Median gross rent$2,49795th percentile (22 ZIP Codes compared)88th percentile (528 ZIP Codes compared)96th percentile (22,865 ZIP Codes compared)
Income inequality (Gini index)0.43457th percentile (22 ZIP Codes compared)57th percentile (529 ZIP Codes compared)54th percentile (22,922 ZIP Codes compared)
Average adjusted gross income per return$150,78065th percentile (21 ZIP Codes compared)74th percentile (523 ZIP Codes compared)92nd percentile (22,230 ZIP Codes compared)
Returns with AGI of $200,000 or more18.8%65th percentile (21 ZIP Codes compared)71st percentile (523 ZIP Codes compared)93rd percentile (22,230 ZIP Codes compared)
Home price index, 5-year change+11.7%0th percentile (21 ZIP Codes compared)0th percentile (510 ZIP Codes compared)1st percentile (18,843 ZIP Codes compared)
Business establishments per 1,000 residents146.595th percentile (22 ZIP Codes compared)99th percentile (529 ZIP Codes compared)99th percentile (22,700 ZIP Codes compared)
Average annual pay per employee$106,65090th percentile (22 ZIP Codes compared)94th percentile (529 ZIP Codes compared)98th percentile (22,551 ZIP Codes compared)

Percentile groups: Mercer County · New Jersey · U.S. Hover a percentile for the number of ZIP Codes compared. MOE = 90% margin of error.

02 — Home prices

−0.9%
1-year change
2021–2022
+11.7%
5-year change
2017–2022
+49.5%
10-year change
2012–2022

Home price index — ZIP Code 08542

Home price index, ZIP Code 08542, 2000–2022Line chart of the annual home price index: 100.0 in 2000 and 271.9 in 2022. Every value is listed in the data table below the chart.10015020025030020002005201020152022271.9

FHFA ZIP Code index (2000 = 100) — annual, developmental, not seasonally adjusted.

Data table
Home price index by year, ZIP Code 08542
YearIndexAnnual change
2000100.0+14.8%
2001105.8+5.8%
2002116.8+10.4%
2003118.2+1.3%
2004144.6+22.3%
2005161.2+11.5%
2006201.7+25.2%
2007201.3−0.2%
2008181.2−10.0%
2009192.3+6.2%
2010158.2−17.8%
2011184.8+16.8%
2012181.8−1.6%
2013190.2+4.6%
2014182.0−4.3%
2015196.5+7.9%
2016225.7+14.8%
2017243.4+7.9%
2019251.6—
2020239.0−5.0%
2021274.3+14.8%
2022271.9−0.9%

03 — Nearby ZIP Codes

ZIP Code 08542 and nearby ZIP Codes
ZIPPlaceDistanceMedian household incomeMedian home valuePoverty rate5-yr HPI change
08542Princeton, NJthis ZIP Code$105,524$754,1004.2%+11.7%
08544Princeton, NJ0.6 mi$197,434$1,130,900100.0%—
08540Princeton, NJ0.7 mi$176,983$767,9008.2%+49.0%
08528Kingston, NJ3.1 mi$137,927$233,5000.0%+56.8%
08553Rocky Hill, NJ3.4 mi$148,056$597,2003.9%+11.8%
08536Plainsboro, NJ4.2 mi$137,607$704,1004.3%+53.8%
08558Skillman, NJ4.7 mi$236,016$910,2001.3%+49.7%

Up to six nearest ZIP Code Tabulation Areas within 30 miles, by straight-line distance between Census center points (2024 Gazetteer).

04 — Business mix

371
Establishments
4,179
Employees
$445.7M
Annual payroll
$106,650
Average pay per employee
Establishments by sector, ZIP Code 08542
SectorEstablishmentsShare of ZIPU.S. shareRelative concentration
Retail trade6317.0%12.4%1.4×
Professional, scientific & technical services6317.0%11.7%1.5×
Accommodation & food services5414.6%9.3%1.6×
Other services4712.7%9.5%1.3×
Finance & insurance4311.6%5.5%2.1×
Real estate & rental236.2%5.5%1.1×
Health care & social assistance174.6%11.9%0.4×
Administrative & support services154.0%5.3%0.8×
Construction123.2%9.6%0.3×
Educational services92.4%1.3%1.9×
All other sectors236.2%11.4%0.5×

Counts are establishments (business locations), not jobs. Relative concentration = the sector’s share of establishments here divided by its share in the U.S. (1.0× = the same share). Average pay is shown only where at least 20 employees are reported. ZIP Code Business Patterns 2023.

05 — About this data

How percentiles are calculated

Percentiles compare this ZIP Code with other ZIP Codes in the same county, the same state and the whole country. Only ZIP Codes with their own American Community Survey estimate, a population of at least 1,000 and a published median household income are compared, and only those with a value for the measure. A percentile of 64th means the value is higher than 64% of the other ZIP Codes in that group (0 is the lowest value, 100 the highest); it describes the size of a number, not a judgment about the area. County and state percentiles are left blank when the group has fewer than 5 ZIP Codes. The number of ZIP Codes compared is shown with each percentile.

Census figures are published for ZIP Code Tabulation Areas, which approximate USPS ZIP Code delivery areas; values shown as — are not published or are suppressed by the source.

Use of this page

Area statistics only. These figures describe a ZIP Code area — not any person or household — and do not rate the area or the people who live there. CoverFi is not a consumer reporting agency; do not use this page to make decisions about credit, insurance, employment or housing.

Sources

  1. U.S. Census Bureau, American Community Survey 2020–2024 5-year estimates, ZIP Code Tabulation Areas. Estimates are survey-based and have margins of error.
  2. U.S. Census Bureau, ZIP Code Business Patterns 2023 (establishment counts by NAICS sector; employment and payroll totals).
  3. Federal Housing Finance Agency, House Price Index for five-digit ZIP Codes, census tracts and counties — annual, developmental, not seasonally adjusted.
  4. IRS Statistics of Income, Individual Income Tax ZIP Code Data, tax year 2022.
  5. U.S. Census Bureau, 2024 Gazetteer Files (ZCTA locations, used for nearby ZIP Codes).
  6. HUD USPS ZIP Code Crosswalk Files (ZIP-to-tract and ZIP-to-county assignment).

This product uses Census Bureau data but is not endorsed or certified by the Census Bureau. This product uses the HUD User Data API but is not endorsed or certified by HUD User. ZIP Code Tabulation Areas are Census approximations of USPS ZIP Code delivery areas and may not match them exactly. ZIP Code is a trademark of the United States Postal Service.