Waldo Map
Waldo is a village in Marion County, Ohio, United States. The population was 332 at the 2000 census.
Waldo is located at 40°27?31?N 83°4?41?W / 40.45861°N 83.07806°W / 40.45861; -83.07806 (40.458481, -83.078054).
According to the United States Census Bureau, the village has a total area of 0.6 square miles (1.7 km²), all of it land.
Nearby cities include Cardington, Delaware, Richwood, Edison, Caledonia.