Altamont township is located in Deuel County, South Dakota. Altamont township has a 2026 population of 113. Altamont township is currently growing at a rate of 0.89% annually and its population has increased by 4.63% since the most recent census, which recorded a population of 108 in 2020.
The median age in Altamont township is 50.6 years: 50.6 years for males, and 44.5 years for females. For every 100 females there are 125.0 males.
Data after 2023 is projected based on recent change
Overall: 50.6 years
Female: 44.5 years
Male: 50.6 years
There are 63 adults, (0 of whom are seniors) in Altamont township.
Female: 28 (44.4%)
Male: 35 (55.6%)
The racial composition of Altamont township includes 100% White, and smaller percentages for and multiracial populations.
| Race | Population ↓ | Percentage (of total) |
|---|---|---|
| White | 63 | 100% |