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Trenton-Princeton, NJ metro area ZIP codes

The Trenton-Princeton, NJ metropolitan statistical area (CBSA 45940) covers 1 county in New Jersey and 39 ZIP codes.

ZIP codes
39
Population
395,671
Avg. median income
$113,700population-weighted
Counties
1
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Counties in the Trenton-Princeton, NJ area

ZIP codes in the Trenton-Princeton, NJ area

ZIP codes in the Trenton-Princeton, NJ area
ZIP codeCityCountyPopulationMedian incomeTypical home value
08520HightstownMercer County29,504$118,010$462,400
08525HopewellMercer County4,522$165,324$659,400
08534PenningtonMercer County13,272$175,573$669,700
08540PrincetonMercer County50,388$176,983$963,100
08541 PO BoxPrincetonMercer County———
08542PrincetonMercer County2,533$105,524$898,200
08543 PO BoxPrincetonMercer County———
08544PrincetonMercer County4,392——
08550Princeton JunctionMercer County21,067$224,213$1,010,500
08560TitusvilleMercer County3,245$128,516$657,900
08561WindsorMercer County325—$484,400
08601 PO BoxTrentonMercer County———
08602 PO BoxTrentonMercer County———
08603 PO BoxTrentonMercer County———
08604 PO BoxTrentonMercer County———
08605 PO BoxTrentonMercer County———
08606 PO BoxTrentonMercer County———
08607 PO BoxTrentonMercer County———
08608TrentonMercer County1,250$61,201$132,400
08609TrentonMercer County15,938$68,238$207,500
08610TrentonMercer County33,465$83,906$349,100
08611TrentonMercer County31,995$56,788$194,200
08618TrentonMercer County35,634$50,390$268,700
08619TrentonMercer County24,089$105,946$429,300
08620TrentonMercer County11,621$105,368$460,300
08625 PO BoxTrentonMercer County———
08628TrentonMercer County9,831$108,158$423,000
08629TrentonMercer County13,013$82,646$257,600
08638TrentonMercer County22,816$66,875$306,200
08644 PO BoxTrentonMercer County———
08645 PO BoxTrentonMercer County———
08646 PO BoxTrentonMercer County———
08647 PO BoxTrentonMercer County———
08648Lawrence TownshipMercer County31,323$125,514$466,000
08650 PO BoxTrentonMercer County———
08666 PO BoxTrentonMercer County———
08690TrentonMercer County18,841$127,339$485,300
08691TrentonMercer County16,607$132,520$633,400
08695 PO BoxTrentonMercer County———

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

Frequently asked questions

How many ZIP codes are in the Trenton-Princeton, NJ metro area?

39 ZIP codes, based on each ZIP code's main county.

Which counties make up the Trenton-Princeton, NJ area?

Mercer County.

What is an MSA?

A metropolitan statistical area (MSA) is a core city of 50,000+ people plus the surrounding counties tied to it by commuting, as defined by the U.S. Office of Management and Budget. Micropolitan areas have a core of 10,000–50,000. Together they are called core-based statistical areas (CBSAs).