
Caledonia
- County:
- Marion County
- County Seat:
- No
- Area (mi²):
- 0.242
- State:
- Ohio
Caledonia is a village located in Marion County, Ohio. Caledonia has a 2025 population of 545. Caledonia is currently declining at a rate of -0.37% annually and its population has decreased by -2.15% since the most recent census, which recorded a population of 557 in 2020.
The average household income in Caledonia is $71,420 with a poverty rate of 16.33%. The median age in Caledonia is 30.1 years: 38.3 years for males, and 27.7 years for females.