| Place Name | Union Township (Hunterdon County) |
| Place Type | Township |
| ZIP Code(s) | 08801 08802 08809 08827 08867 |
| County | Hunterdon County |
| Area Code(s) | 908 |
| Timezone | Eastern Daylight Time (EDT) |
| Population (2021) | 6,514 |
| Majority Ethnicity | White 85.57% |
| Metro/Micro Stats Area | New York-Newark-Jersey City, NY-NJ-PA |
| US Congressional District(s) | New Jersey 7th |
| State Assembly Districts | 23 |
| State Senate Districts | 23 |
| Race/Ethnicy | Percentage of Population (2021) |
|---|---|
| White | 85.57% |
| African American | 9.25% |
| Hispanic | 0.17% |
| Asian | 2.51% |
| Native American | 0% |
| Hawaiin/Pacific Islander | 2.49% |