| Place Name | Princeton Junction |
| Place Type | Census Designated Place |
| ZIP Code(s) | 08550 |
| County | Mercer County |
| Area Code(s) | 609,640 |
| Timezone | Eastern Daylight Time (EDT) |
| Population (2022) | 2,259 |
| Population Growth Rate (2010-19) | 0.41% |
| Majority Ethnicity | White 73.22% |
| Metro/Micro Stats Area | Trenton-Princeton, NJ |
| US Congressional District(s) | New Jersey 12th |
| State Assembly Districts | 15 |
| State Senate Districts | 15 |
| Race/Ethnicy | Percentage of Population (2021) |
|---|---|
| White | 73.22% |
| African American | 2.41% |
| Hispanic | 0% |
| Asian | 20.83% |
| Native American | 0% |
| Hawaiin/Pacific Islander | 3.54% |