| Place Name | Fincastle |
| Place Type | Census Designated Place |
| ZIP Code(s) | 37766 |
| County | Campbell County |
| Area Code(s) | 423 |
| Timezone | Eastern Daylight Time (EDT) |
| Population (2022) | 1,415 |
| Population Growth Rate (2010-19) | -0.43% |
| Majority Ethnicity | White 100% |
| Metro/Micro Stats Area | Knoxville, TN |
| US Congressional District(s) | Tennessee 3rd |
| State House Districts | 36 |
| State Senate Districts | 12 |
| Race/Ethnicy | Percentage of Population (2021) |
|---|---|
| White | 100% |
| African American | 0% |
| Hispanic | 0% |
| Asian | 0% |
| Native American | 0% |
| Hawaiin/Pacific Islander | 0% |