| Place Name | Washington Township (Warren County) |
| Place Type | Township |
| County | Warren County |
| Area Code(s) | 908 |
| Timezone | Eastern Standard Time (EST) |
| Population (2021) | 6,470 |
| Majority Ethnicity | White 82.98% |
| 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 | 82.98% |
| African American | 5.78% |
| Hispanic | 0% |
| Asian | 4.29% |
| Native American | 0% |
| Hawaiin/Pacific Islander | 6.95% |