| ZIP Code | 08540 |
|---|---|
| City | Princeton |
| State | New Jersey (NJ) |
| County | Mercer County |
| Area Code | 609/640 |
| Elevation | 251 ft |
| Latitude | 40.364728 |
|---|---|
| Longitude | -74.656314 |
| Timezone | New York (DST) |
| FIPS | 34021 |
| ZIP Type | Standard |
| Status | Active |
Race & Ethnicity
Age Breakdown
Key Indicators
| Median Age | 40.1 yrs ↓ 2% since 2019 |
|---|---|
| Avg Household Size | 2.58 |
| Below Poverty | 7.7% ▼ 24% below avg |
| College Grads | 86.2% ▲ 122% above avg |
| Unemployment | 4.0% ▼ 18% below avg |
| No HS Diploma | 100 (0.4%) |
| HS Graduate | 1,777 (6.4%) |
| Some College | 714 (2.6%) |
| Associates | 1,254 (4.5%) |
| Bachelors | 1,326 (4.8%) |
| Graduate Degree | 22,688 (81.4%) |
Education
Housing Tenure
Home Value Distribution
Financials
| Median HH Income | $169,898 ▲ 123% above avg ↑ 18% since 2019 |
|---|---|
| Median Home Value | $723,400 ▲ 159% above avg ↑ 11% since 2019 |
| Home/Income Ratio | 4.3x (nat avg ~3.5x) |
| Median Rent | $2,083/mo ↑ 18% since 2019 |
| Total Units | 19,255 |
| Vacant Units | 1,218 |
| Avg HH Size | 2.58 |
Income Distribution
How People Get to Work
Commute Time
Year Built
Summary
| Total Units | 19,255 |
|---|---|
| Vacant | 1,218 |
| Owner Occupied | 63.4% |
| Renter Occupied | 36.6% |
| Avg HH Size | 2.58 |
ZIP code 08540 is located in Princeton, New Jersey, within Mercer County. With a population of 49,499, this is a highly populated ZIP code with a middle-aged community — the median age is 40.1 years. Economically, 08540 is a affluent ZIP code: the median household income of $169,898 is more than double the national average.
Real estate in ZIP code 08540 represents a premium housing market. The median home value of $723,400 is more than double the national average. Renters can expect to pay around $2,083 per month in median rent. Homeownership is strong here — 63.4% of occupied units are owner-occupied, suggesting an established, stable residential community. Median home values have increased by 11% since 2019.
The population of 08540 is majority White (52.49%). Residents are highly educated — 86.2% hold a bachelor's degree or higher, which is more than double the national average. Poverty affects a relatively small share of residents at 7.7%. Household income has grown by 18% since 2019.
The unemployment rate in 08540 stands at 4.0%, which is below the national average. A notably high share of workers — 35% — work from home, reflecting the professional makeup of the area. As in most parts of the country, driving alone is the dominant commute mode at 43%.
Overall, ZIP code 08540 in Princeton, NJ is characterized as affluent, highly educated, a middle-aged community, and predominantly owner-occupied. With 49,499 residents, a median household income of $169,898, and a median home value of $723,400, it offers a clear picture of life in this part of New Jersey.