
Fostoria
- County:
- Clay County
- County Seat:
- No
- Area (mi²):
- 0.406
- State:
- Iowa
Fostoria is a city located in Clay County, Iowa. Fostoria has a 2025 population of 229. Fostoria is currently declining at a rate of 0% annually and its population has decreased by -0.87% since the most recent census, which recorded a population of 231 in 2020.
The average household income in Fostoria is $86,456 with a poverty rate of 0%. The median age in Fostoria is 56.4 years: 56 years for males, and 57 years for females.