Princeton Junction, NJ ZIP Codes
2 ZIP codes serve Princeton Junction, New Jersey: 08540 and 08550. Together they are home to 71,455 residents in 26,426 households. That is more than the 2,025 people counted inside Princeton Junction Census-designated place, because these ZIP codes reach past its boundary. Median household income ranges from $176,983 in 08540 to $224,213 in 08550.
Princeton Junction Census-designated place
| Measure | Census figure |
|---|---|
| Residents | 2,025 |
| Households | 795 |
| Median household income | $224,732 |
| Median home value | $709,800 |
| Median age | 44.3 |
| Median rent | $1,661 |
All 2 ZIP codes together
| Measure | Value |
|---|---|
| Residents (sum of ZIP codes) | 71,455 |
| Households (sum of ZIP codes) | 26,426 |
| Median household income, range across ZIP codes | $176,983 (08540) to $224,213 (08550) |
| Household-weighted average of ZIP medians (an approximation, not a true median) | $190,954 |
| Homeowners | 67.4% |
| Households with kids under 18 | 36.8% |
| Moved in the past year | 13.1% |
| Carrier routes in EDDM2GO's route library | 63 routes, 28,404 homes (2 of 2 ZIP codes) |
Top facts
- Highest median household income in Princeton Junction: 08550 ($224,213)
- Most residents: 08540 (50,388 people)
- Highest homeownership: 08550 (76.1% own their home)
- Most households with kids: 08550 (37.7% of households)
- Most new movers: 08540 (14.8% moved in last year)
- Youngest median age: 08540 (40.6 years)
- Highest median home value: 08550 ($807,200)
Every ZIP code in Princeton Junction
| 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 | 2% of its land |
| 08550 | Princeton Junction | 21,067 | 7,817 | $224,213 | $807,200 | 76.1% | 37.7% | 9.1% | 15 | 7,913 | 5% of its land; mailing city |
A ZIP code is listed for Princeton Junction when at least 10% of its land lies inside the Princeton Junction Census-designated place, when it holds at least 10% of the place's land, or when its USPS mailing city is Princeton Junction. The table shows which applies. Totals add up whole ZIP codes, so they include any parts outside Princeton Junction.
Counties
- Mercer County — 23 ZIP codes
Nearby cities sharing these ZIP codes
Price a mailing to Princeton Junction ZIP codes
EDDM guides
Pick carrier routes on the EDDM route map
Frequently asked questions
- What ZIP codes are in Princeton Junction, NJ?
- 08540 and 08550. A ZIP code is listed for Princeton Junction when at least 10% of its land lies inside the Princeton Junction Census-designated place, when it holds at least 10% of the place's land, or when its USPS mailing city is Princeton Junction.
- What is the population of Princeton Junction, NJ?
- The Census Bureau counts 2,025 residents inside Princeton Junction Census-designated place (ACS 2020–2024). The 2 ZIP codes that serve Princeton Junction hold 71,455 residents in all.
- What is the median household income in Princeton Junction, NJ?
- $224,732 inside Princeton Junction Census-designated place, per the Census Bureau. Across its ZIP codes the medians run from $176,983 to $224,213.
- Which Princeton Junction ZIP code has the highest median household income?
- 08550, at $224,213, among ZIP codes with at least 1,000 residents.
- How many carrier routes and mailboxes are in Princeton Junction, NJ?
- For the 2 of 2 ZIP codes in EDDM2GO's stored route library: 63 carrier routes reaching 28,404 residential and 2,094 business mailboxes.
This product uses the Census Bureau Data API but is not endorsed or certified by the Census Bureau.