| Place Name | Penhook |
| Place Type | Census Designated Place |
| ZIP Code(s) | 24137 |
| County | Franklin County |
| Area Code(s) | 540 |
| Timezone | Eastern Daylight Time (EDT) |
| Population (2022) | 568 |
| Population Growth Rate (2010-19) | -2.37% |
| Majority Ethnicity | White 79.73% |
| Metro/Micro Stats Area | Roanoke, VA |
| US Congressional District(s) | Virginia 5th |
| House of Delegates Districts | 9 |
| State Senate Districts | 19,20 |
| Race/Ethnicy | Percentage of Population (2021) |
|---|---|
| White | 79.73% |
| African American | 1.66% |
| Hispanic | 0% |
| Asian | 8.93% |
| Native American | 0% |
| Hawaiin/Pacific Islander | 9.68% |