About This Place
Caledonia is a village in Marion County, Ohio, United States. The population was 578 at the 2000 census.
Caledonia is located at 40°38′10″N 82°58′9″W / 40.63611°N 82.96917°W / 40.63611; -82.96917 (40.636068, -82.969301).
According to the United States Census Bureau, the village has a total area of 0.2 square miles (0.6 km²), all of it land.