Princeton, NJ ZIP Codes
3 ZIP codes serve Princeton, New Jersey: 08540, 08544 and 08542. Together they are home to 57,313 residents in 19,885 households. That is more than the 30,756 people counted inside Princeton city limits, because these ZIP codes reach past its boundary. Median household income ranges from $105,524 in 08542 to $176,983 in 08540.
Princeton city limits (Census)
| Measure | Census figure |
|---|---|
| Residents | 30,756 |
| Households | 9,300 |
| Median household income | $192,079 |
| Median home value | $1,050,600 |
| Median age | 28.5 |
| Median rent | $2,636 |
All 3 ZIP codes together
| Measure | Value |
|---|---|
| Residents (sum of ZIP codes) | 57,313 |
| Households (sum of ZIP codes) | 19,885 |
| Median household income, range across ZIP codes | $105,524 (08542) to $176,983 (08540) |
| Household-weighted average of ZIP medians (an approximation, not a true median) | $172,438 |
| Homeowners | 61.7% |
| Households with kids under 18 | 35.1% |
| Moved in the past year | 17.7% |
| Carrier routes in EDDM2GO's route library | 53 routes, 22,426 homes (2 of 3 ZIP codes) |
Top facts
- Highest median household income in Princeton: 08540 ($176,983)
- Most residents: 08540 (50,388 people)
- Highest homeownership: 08540 (63.7% own their home)
- Most households with kids: 08540 (36.4% of households)
- Most new movers: 08544 (42.7% moved in last year)
- Youngest median age: 08544 (20.4 years)
- Highest median home value: 08540 ($767,900)
Every ZIP code in Princeton
| ZIP | Mailing city | Residents | Households | Median income | Home value | Homeowners | With kids | New movers | Carrier routes | Mailboxes | Why listed |
|---|---|---|---|---|---|---|---|---|---|---|---|
| 08540 | Princeton | 50,388 | 18,609 | $176,983 | $767,900 | 63.7% | 36.4% | 14.8% | 48 | 22,607 | 34% of its land; mailing city |
| 08544 | Princeton | 4,392 | 12 | — | — | 0.0% | 0.0% | 42.7% | — | — | 100% of its land; mailing city |
| 08542 | Princeton | 2,533 | 1,264 | $105,524 | $754,100 | 32.3% | 16.0% | 31.6% | 5 | 2,033 | 100% of its land; mailing city |
A ZIP code is listed for Princeton when at least 10% of its land lies inside Princeton city limits, when it holds at least 10% of the place's land, or when its USPS mailing city is Princeton. The table shows which applies. Totals add up whole ZIP codes, so they include any parts outside Princeton.
Counties
- Mercer County — 23 ZIP codes
Nearby cities sharing these ZIP codes
- Heathcote — 3 ZIP codes
Price a mailing to Princeton ZIP codes
EDDM guides
Pick carrier routes on the EDDM route map
Frequently asked questions
- What ZIP codes are in Princeton, NJ?
- 08540, 08544 and 08542. A ZIP code is listed for Princeton when at least 10% of its land lies inside Princeton city limits, when it holds at least 10% of the place's land, or when its USPS mailing city is Princeton.
- What is the population of Princeton, NJ?
- The Census Bureau counts 30,756 residents inside Princeton city limits (ACS 2020–2024). The 3 ZIP codes that serve Princeton hold 57,313 residents in all.
- What is the median household income in Princeton, NJ?
- $192,079 inside Princeton city limits, per the Census Bureau. Across its ZIP codes the medians run from $105,524 to $176,983.
- Which Princeton ZIP code has the highest median household income?
- 08540, at $176,983, among ZIP codes with at least 1,000 residents.
- How many carrier routes and mailboxes are in Princeton, NJ?
- For the 2 of 3 ZIP codes in EDDM2GO's stored route library: 53 carrier routes reaching 22,426 residential and 2,189 business mailboxes. The route map loads the rest when you search them.
This product uses the Census Bureau Data API but is not endorsed or certified by the Census Bureau.