| Place Name | Southwest Township |
| Place Type | Township |
| ZIP Code(s) | 16341 16351 16354 16420 |
| County | Warren County |
| Area Code(s) | 814 |
| Timezone | Eastern Standard Time (EST) |
| Population (2021) | 374 |
| Majority Ethnicity | White 94.79% |
| Metro/Micro Stats Area | Warren, PA |
| US Congressional District(s) | Pennsylvania 5th |
| State House Districts | 65 |
| State Senate Districts | 50 |
| Race/Ethnicy | Percentage of Population (2021) |
|---|---|
| White | 94.79% |
| African American | 0% |
| Hispanic | 0% |
| Asian | 0% |
| Native American | 0% |
| Hawaiin/Pacific Islander | 5.21% |