
Castalia
- County:
- Erie County
- County Seat:
- No
- Area (mi²):
- 1.022
- State:
- Ohio
Castalia is a village located in Erie County, Ohio. Castalia has a 2025 population of 729. Castalia is currently declining at a rate of -1.22% annually and its population has decreased by -5.69% since the most recent census, which recorded a population of 773 in 2020.
The average household income in Castalia is $71,583 with a poverty rate of 31.75%. The median age in Castalia is 29.2 years: 19.8 years for males, and 37 years for females.