Wetonka
- County:
- Brown County
- County Seat:
- No
- Area (mi²):
- 0.246
- State:
- South Dakota
Wetonka is a town located in Brown County, South Dakota. Wetonka has a 2025 population of 12. Wetonka is currently declining at a rate of 0% annually and its population has decreased by -14.29% since the most recent census, which recorded a population of 14 in 2020.
The median age in Wetonka is 37.8 years: 0 years for males, and 0 years for females.