| Place Name | Seneca |
| Place Type | Census Designated Place |
| ZIP Code(s) | 16346 |
| County | Venango County |
| Area Code(s) | 814 |
| Timezone | Eastern Daylight Time (EDT) |
| Population (2022) | 1,369 |
| Population Growth Rate (2010-19) | -5.07% |
| Majority Ethnicity | White 98.62% |
| Metro/Micro Stats Area | Oil City, PA |
| US Congressional District(s) | Pennsylvania 5th |
| State House Districts | 64 |
| State Senate Districts | 21 |
| Race/Ethnicy | Percentage of Population (2021) |
|---|---|
| White | 98.62% |
| African American | 0% |
| Hispanic | 0% |
| Asian | 1.38% |
| Native American | 0% |
| Hawaiin/Pacific Islander | 0% |