| Place Name | Ash Township (Pennington County) |
| Place Type | Township |
| ZIP Code(s) | 57775 57790 |
| County | Pennington County |
| Area Code(s) | 605 |
| Timezone | Mountain Standard Time (MST) |
| Population (2021) | 36 |
| Majority Ethnicity | White 63.89% |
| Metro/Micro Stats Area | Rapid City, SD |
| US Congressional District(s) | South Dakota At-Large |
| State House Districts | 27 |
| State Senate Districts | 27 |
| Race/Ethnicy | Percentage of Population (2021) |
|---|---|
| White | 63.89% |
| African American | 0% |
| Hispanic | 36.11% |
| Asian | 0% |
| Native American | 0% |
| Hawaiin/Pacific Islander | 0% |