Ash township is located in Pennington County, South Dakota. Ash township has a 2026 population of 18. Ash township is currently declining at a rate of -5.26% annually and its population has decreased by -14.29% since the most recent census, which recorded a population of 21 in 2020.
The median age in Ash township is 51.8 years: 0 years for males, and 51.4 years for females. For every 100 females there are 38.5 males.
Data after 2023 is projected based on recent change
Overall: 51.8 years
Female: 51.4 years
Male: 0 years
There are 28 adults, (10 of whom are seniors) in Ash township.
Female: 26 (72.2%)
Male: 10 (27.8%)
The racial composition of Ash township includes 63.89% White, and smaller percentages for and multiracial populations.
| Race | Population ↓ | Percentage (of total) |
|---|---|---|
| White | 23 | 63.89% |
| Two or more races | 13 | 36.11% |