Belmont township
- County:
- Douglas County
- County Seat:
- No
- Area (mi²):
- 34.223
- State:
- South Dakota
Belmont township is located in Douglas County, South Dakota. Belmont township has a 2026 population of 65. Belmont township is currently declining at a rate of 0% annually and its population has decreased by 0% since the most recent census, which recorded a population of 65 in 2020.
The median household income in Belmont township is $88,125 with a poverty rate of 11.34%. The median age in Belmont township is 34.4 years: 33.6 years for males, and 36.1 years for females. For every 100 females there are 102.1 males.