ZIP code 08540: Princeton, NJ
08540 is a ZIP code in Princeton, New Jersey, mainly in Mercer County, part of the Trenton-Princeton, NJ metro area. About 50,388 people live here.
- Population
- 50,388
- Median household income
- $176,983
- Typical home value
- $963,100+3.1% in 12 months
- Median rent
- $2,218gross, per month
- Median age
- 40.6
- Homeowners
- 63.7%of occupied homes
Shaded: ZIP code 08540's area. Click anywhere on the map to see which ZIP code it's in.
ZIP codes within 10 milesWithin 25 miles
ZIP code 08540 details
| City | Princeton |
|---|---|
| State | New Jersey |
| County | Mercer County (also partly Somerset County, Middlesex County) |
| Metro area | Trenton-Princeton, NJ |
| Time zone | Eastern Time (UTC−5), observes daylight saving time |
| Type | Standard (delivery area) |
| Land area | 51.7 sq mi, plus 1 sq mi of water |
| Population density | 974 people per sq mi |
| Bachelor's degree or higher | 82.7% of adults 25+ |
| Average commute | 28.5 minutes |
| Center coordinates | 40.36473, -74.65631 |
Median rent in 08540 by bedrooms
| Size | Median gross rent |
|---|---|
| Studio | $1,440/mo |
| 1 bedroom | $1,600/mo |
| 2 bedrooms | $2,349/mo |
| 3 bedrooms | $3,091/mo |
| 4 bedrooms | $3,501/mo |
| 5+ bedrooms | $2,277/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 08540
| ZIP code | City | Distance | Population |
|---|---|---|---|
| 08542 | Princeton, NJ | 0.7 mi | 2,533 |
| 08541 | Princeton, NJ | 1.1 mi | — |
| 08544 | Princeton, NJ | 1.3 mi | 4,392 |
| 08528 | Kingston, NJ | 2.5 mi | 321 |
| 08553 | Rocky Hill, NJ | 2.6 mi | 819 |
| 08504 | Blawenburg, NJ | 3.8 mi | — |
| 08558 | Skillman, NJ | 4.2 mi | 7,648 |
| 08536 | Plainsboro, NJ | 4.3 mi | 20,817 |
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 08540?
A typical home in ZIP code 08540 is worth about $963,100 (Zillow Home Value Index). The median household here earns $176,983 a year. See what buying here would cost per month, with New Jersey average taxes and insurance filled in.
Monthly payment for a $963,100 homeWhat can a $176,983 income afford?Rental property numbers
About ZIP code 08540
What city is ZIP code 08540?
ZIP code 08540 is in Princeton, NJ, in Mercer County.
What county is ZIP code 08540 in?
08540 is mainly in Mercer County, New Jersey, and partly in Somerset County and Middlesex County.
What is the population of ZIP code 08540?
About 50,388 people live in ZIP code 08540, according to the American Community Survey 2020–2024 5-year estimates.
What time zone is ZIP code 08540 in?
08540 is in Eastern Time (UTC−5). It observes daylight saving time.