Green Valley
- County:
- Miner County
- County Seat:
- No
- Area (mi²):
- 35.893
- State:
- South Dakota
Green Valley is located in Miner County, South Dakota. Green Valley has a 2025 population of 40. Green Valley is currently declining at a rate of 0% annually and its population has decreased by -2.44% since the most recent census, which recorded a population of 41 in 2020.
The median age in Green Valley is 72.3 years: 0 years for males, and 0 years for females.