Stena
- County:
- Marshall County
- County Seat:
- No
- Area (mi²):
- 35.93
- State:
- South Dakota
Stena is located in Marshall County, South Dakota. Stena has a 2025 population of 191 . Stena is currently growing at a rate of 1.06% annually and its population has increased by 2.69% since the most recent census, which recorded a population of 186 in 2020.
The median age in Stena is 16.1 years: 14.9 years for males, and 47.1 years for females. For every 100 females there are 72.4 males.