| Place Name | Greenfield Township (Blair County) |
| Place Type | Township |
| County | Blair County |
| Area Code(s) | 814 |
| Timezone | Eastern Standard Time (EST) |
| Population (2021) | 3,835 |
| Majority Ethnicity | White 99.47% |
| Metro/Micro Stats Area | Altoona, PA |
| US Congressional District(s) | Pennsylvania 9th |
| State House Districts | 80 |
| State Senate Districts | 30 |
| Race/Ethnicy | Percentage of Population (2021) |
|---|---|
| White | 99.47% |
| African American | 0.13% |
| Hispanic | 0% |
| Asian | 0% |
| Native American | 0% |
| Hawaiin/Pacific Islander | 0.39% |