
Delmont
- County:
- Douglas County
- County Seat:
- No
- Area (mi²):
- 0.763
- State:
- South Dakota
Delmont is a city located in Douglas County, South Dakota. Delmont has a 2025 population of 152. Delmont is currently declining at a rate of 0% annually and its population has decreased by -1.3% since the most recent census, which recorded a population of 154 in 2020.
The average household income in Delmont is $60,346 with a poverty rate of 18.37%. The median age in Delmont is 58.3 years: 50.6 years for males, and 58.8 years for females.