| Place Name | Derry Township (Westmoreland County) |
| Place Type | Township |
| County | Westmoreland County |
| Area Code(s) | 724,878 |
| Timezone | Eastern Daylight Time (EDT) |
| Population (2021) | 13,704 |
| Majority Ethnicity | White 96.59% |
| Metro/Micro Stats Area | Pittsburgh, PA |
| US Congressional District(s) | Pennsylvania 12th |
| State House Districts | 55 |
| State Senate Districts | 39 |
| Race/Ethnicy | Percentage of Population (2021) |
|---|---|
| White | 96.59% |
| African American | 2.18% |
| Hispanic | 0.05% |
| Asian | 0.31% |
| Native American | 0.04% |
| Hawaiin/Pacific Islander | 0.82% |