Ash is located in Pennington County, South Dakota. Ash has a 2025 population of 19 . Ash is currently declining at a rate of -5% annually and its population has decreased by -9.52% since the most recent census, which recorded a population of 21 in 2020.
Data after 2023 is projected based on recent change
The racial composition of Ash includes 100% White, and smaller percentages for and multiracial populations.
White (100%)
Race | Population | Percentage (of total) |
|---|---|---|
| White | 8 | 100% |
Married
Widowed
Divorced
Separated
Never Married