Darlington
- County:
- Charles Mix County
- County Seat:
- No
- Area (mi²):
- 38.623
- State:
- South Dakota
Darlington is located in Charles Mix County, South Dakota. Darlington has a 2025 population of 108. Darlington is currently growing at a rate of 0.93% annually and its population has increased by 1.89% since the most recent census, which recorded a population of 106 in 2020.
The median age in Darlington is 57.8 years: 0 years for males, and 0 years for females.