Owasa
- County:
- Franklin County
- County Seat:
- No
- Area (mi²):
- 0.563
- State:
- Iowa
Owasa is a city located in Franklin County, Iowa. Owasa has a 2026 population of 30. Owasa is currently declining at a rate of 0% annually and its population has decreased by -3.23% since the most recent census, which recorded a population of 31 in 2020.
The median age in Owasa is 67.5 years: 69.1 years for males, and 63.5 years for females. For every 100 females there are 78.6 males.