Altamont township
- County:
- Deuel County
- County Seat:
- No
- Area (mi²):
- 36.567
- State:
- South Dakota
Altamont township is located in Deuel County, South Dakota. Altamont township has a 2025 population of 106. Altamont township is currently declining at a rate of -0.93% annually and its population has decreased by 0% since the most recent census, which recorded a population of 106 in 2020.
The median age in Altamont township is 60.2 years: 60.3 years for males, and 60.1 years for females.