ZIP code · Princeton Junction · New Jersey · United States
ZIP code 08550 — Princeton Junction
ZIP code 08550 serves Princeton Junction, New Jersey.
- Postal code
- 08550Single source Value from one source, not cross-checked.
- County
- Mercer FIPS 34021
- State
- New Jersey
- Country
- United States
- Coordinates
- 40.2669, -74.6511 — precision precise (locality)
View on OpenStreetMap - Population
- 20,876 (ZCTA, ACS 5-year)
- Population density
- 1,091 / sq mi
- Land area
- 19.1 sq mi (49.6 km²) (ZCTA, ACS 5-year)
- Median household income
- $206,658
- Per-capita income
- $97,510
- Median age
- 45.1
- Households
- 7,737
- Housing units
- 7,839
- Median home value
- $758,900
- Median gross rent
- $2,694 / month
- Congressional district
- NJ-12 (119th Congress)
- USDA hardiness zone
- 7a (0 to 5 °F)Planting / growing zone from the 2023 USDA Plant Hardiness Zone Map: average annual extreme minimum temperature, 1991–2020.
- Time zone
- America/New_York (UTC−5 / UTC−4 DST)
Tools: compare 08550 with another ZIP · ZIPs within 25 miles · distance from 08550
Map of ZIP code 08550
Climate — monthly normals
Warmest month Jul (avg high 87°F), coldest Jan (avg low 21°F).
| Jan | Feb | Mar | Apr | May | Jun | Jul | Aug | Sep | Oct | Nov | Dec | |
|---|---|---|---|---|---|---|---|---|---|---|---|---|
| Avg high °F | 41 | 43 | 51 | 63 | 73 | 82 | 87 | 85 | 78 | 66 | 55 | 46 |
| Avg low °F | 21 | 23 | 30 | 39 | 48 | 58 | 63 | 61 | 54 | 42 | 33 | 27 |
| Precip in | 3.5 | 2.6 | 4.3 | 3.7 | 4.1 | 4.6 | 4.8 | 4.3 | 4.2 | 4.0 | 3.3 | 4.2 |
NOAA 1991–2020 climate normals from the nearest station: HIGHTSTOWN 2 W (4.6 mi) · NOAA NCEI
Places in ZIP 08550
- 9 schools
- 2 colleges & universities
- 1 hospitals & clinics
- 2 doctors & dentists
- 1 pharmacies
- 2 supermarkets
- 18 restaurants & cafés
- 10 parks
- 23 playgrounds
- 3 gyms & sports centres
- 2 libraries
- 1 post offices
- 8 places of worship
- 5 banks
- 4 gas stations
- 4 police & fire stations
Places mapped inside this ZIP’s ZCTA area in OpenStreetMap. OSM is community-maintained: counts reflect what has been mapped, and completeness varies by area — treat them as at-least figures. © OpenStreetMap contributors (ODbL) · Methodology
About this page
US ZIP codes have five digits. They are postal routing areas, not administrative boundaries: a ZIP can span more than one city or county, and the city shown is the primary USPS name for that code.
GeoNames · U.S. Census Bureau (ACS) · U.S. Census Bureau · NOAA NCEI · usda-phzm. Data generated on 2026-08-21. Methodology · Report an error on this page