Marion County, Ohio

Marion County is a county in the U.S. state of Ohio. In 2010, 66,501 people lived there. The county seat is Marion.
History.
The county was founded on May 1, 1824 and is named for General Francis "The Swamp Fox" Marion, a South Carolinian officer in the Revolutionary War.
Geography.
The U.S. Census Bureau says that the county has a total area of . Of that is land and (0.1%) is water. It is the fifth-smallest county in Ohio by total area.
Demographics.
2010 census.
The 2010 United States Census says that there were 66,501 people, 24,691 households, and 16,837 families living in the county.