Blaine
- County:
- Clark County
- County Seat:
- No
- Area (mi²):
- 33.627
- State:
- South Dakota
Blaine is located in Clark County, South Dakota. Blaine has a 2025 population of 38 . Blaine is currently declining at a rate of 0% annually and its population has increased by 5.56% since the most recent census, which recorded a population of 36 in 2020.
The median age in Blaine is 28.3 years: 0 years for males, and 0 years for females. For every 100 females there are 22.6 males.