| Place Name | Hackettstown |
| Place Type | Town |
| ZIP Code(s) | 07840 |
| County | Warren County |
| Area Code(s) | 908 |
| Timezone | Eastern Standard Time (EST) |
| Population (2022) | 9,743 |
| Population Growth Rate (2010-19) | 5.39% |
| Majority Ethnicity | White 73.77% |
| Metro/Micro Stats Area | Allentown-Bethlehem-Easton, PA-NJ |
| US Congressional District(s) | New Jersey 5th |
| State Assembly Districts | 23 |
| State Senate Districts | 23 |
| Race/Ethnicy | Percentage of Population (2021) |
|---|---|
| White | 73.77% |
| African American | 2.28% |
| Hispanic | 0% |
| Asian | 4.73% |
| Native American | 0% |
| Hawaiin/Pacific Islander | 19.23% |