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ZIP code 08542: Princeton, NJ

08542 is a ZIP code in Princeton, New Jersey, mainly in Mercer County, part of the Trenton-Princeton, NJ metro area. About 2,533 people live here.

Population
2,533
Median household income
$105,524
Typical home value
$898,200+4.9% in 12 months
Median rent
$2,497gross, per month
Median age
37.2
Homeowners
32.3%of occupied homes
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Shaded: ZIP code 08542's area. Click anywhere on the map to see which ZIP code it's in.

ZIP codes within 10 milesWithin 25 miles

ZIP code 08542 details

CityPrinceton
StateNew Jersey
CountyMercer County
Metro areaTrenton-Princeton, NJ
Time zoneEastern Time (UTC−5), observes daylight saving time
TypeStandard (delivery area)
Land area0.4 sq mi
Population density6,495 people per sq mi
Bachelor's degree or higher70.7% of adults 25+
Average commute20.7 minutes
Center coordinates40.35452, -74.66056

Median rent in 08542 by bedrooms

SizeMedian gross rent
Studio$1,560/mo
1 bedroom$2,435/mo
2 bedrooms$2,885/mo
3 bedrooms$2,792/mo
4 bedrooms$3,501/mo

Gross rent includes utilities paid by the tenant. ACS 2020–2024; sizes with too few rentals to estimate are left out.

ZIP codes near 08542

ZIP codeCityDistancePopulation
08541Princeton, NJ0.4 mi—
08544Princeton, NJ0.6 mi4,392
08540Princeton, NJ0.7 mi50,388
08528Kingston, NJ3.1 mi321
08553Rocky Hill, NJ3.4 mi819
08536Plainsboro, NJ4.2 mi20,817
08504Blawenburg, NJ4.3 mi—
08558Skillman, NJ4.7 mi7,648

Population and median household income: ACS 2020–2024 5-year estimates. Typical home value: Zillow Home Value Index (September 2026) where available, otherwise the ACS median owner-reported value. "PO Box" marks ZIP codes with no delivery area of their own. Methodology

Buying a home in 08542?

A typical home in ZIP code 08542 is worth about $898,200 (Zillow Home Value Index). The median household here earns $105,524 a year. See what buying here would cost per month, with New Jersey average taxes and insurance filled in.

Monthly payment for a $898,200 homeWhat can a $105,524 income afford?Rental property numbers

About ZIP code 08542

What city is ZIP code 08542?

ZIP code 08542 is in Princeton, NJ, in Mercer County.

What county is ZIP code 08542 in?

08542 is mainly in Mercer County, New Jersey.

What is the population of ZIP code 08542?

About 2,533 people live in ZIP code 08542, according to the American Community Survey 2020–2024 5-year estimates.

What time zone is ZIP code 08542 in?

08542 is in Eastern Time (UTC−5). It observes daylight saving time.

What other ZIP codes does Princeton have?

Princeton, NJ also uses 08540, 08541, 08543 and 08544.