Ross County, Ohio | ||
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Ross County Courthouse
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Location in the U.S. state of Ohio |
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Ohio's location in the U.S. |
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Founded | August 20, 1798 | |
Named for | James Ross | |
Seat | Chillicothe | |
Largest city | Chillicothe | |
Area | ||
• Total | 693 sq mi (1,795 km2) | |
• Land | 689 sq mi (1,785 km2) | |
• Water | 3.8 sq mi (10 km2), 0.6% | |
Population | ||
• (2010) | 78,064 | |
• Density | 113/sq mi (44/km²) | |
Congressional districts | 2nd, 15th | |
Time zone | Eastern: UTC-5/-4 | |
Website | www |
Ross County is a county located in the Appalachian region of the U.S. state of Ohio. As of the 2010 census, the population was 78,064. Its county seat is Chillicothe, the first and third capital of Ohio. Established on August 20, 1798, the county is named for Federalist Senator James Ross of Pennsylvania.
Ross County comprises the Chillicothe, OH Micropolitan Statistical Area, which is also included in the Columbus-Marion-Zanesville, OH Combined Statistical Area.
As of 1848, Ross County was described as having almost "one hundred enclosures of various sizes, and five hundred mounds" by Ephraim George Squier and Edwin Hamilton Davis in their book, Ancient Monuments of the Mississippi Valley. They describe the Indian-built earthworks as ranging from five to 30 feet in size, and enclosures of one to 50 acres large.
According to the U.S. Census Bureau, the county has a total area of 693 square miles (1,790 km2), of which 689 square miles (1,780 km2) is land and 3.8 square miles (9.8 km2) (0.6%) is water. Ross County is the second-largest county by land area in Ohio, after Ashtabula County, as well as the fifth-largest by total area.