| Place Name | Union Township (Washington County) |
| Place Type | Township |
| County | Washington County |
| Area Code(s) | 724,878,412,878 |
| Timezone | Eastern Standard Time (EST) |
| Population (2021) | 5,409 |
| Majority Ethnicity | White 97.05% |
| Metro/Micro Stats Area | Pittsburgh, PA |
| US Congressional District(s) | Pennsylvania 18th |
| State House Districts | 39 |
| State Senate Districts | 46 |
| Race/Ethnicy | Percentage of Population (2021) |
|---|---|
| White | 97.05% |
| African American | 0.63% |
| Hispanic | 0% |
| Asian | 0% |
| Native American | 0.39% |
| Hawaiin/Pacific Islander | 1.94% |