
Ashton
- County:
- Spink County
- County Seat:
- No
- Area (mi²):
- 0.438
- State:
- South Dakota
Ashton is a city located in Spink County, South Dakota. Ashton has a 2025 population of 104. Ashton is currently declining at a rate of -0.95% annually and its population has decreased by -3.7% since the most recent census, which recorded a population of 108 in 2020.
The average household income in Ashton is $83,259 with a poverty rate of 0%. The median age in Ashton is 38.5 years: 38.9 years for males, and 38.1 years for females.