Ross County | |
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![]() Ross County Courthouse | |
![]() Location within the U.S. state of Ohio | |
![]() Ohio's location within the U.S. | |
Coordinates: 39°20′N 83°04′W / 39.33°N 83.06°W | |
Country | ![]() |
State | ![]() |
Founded | August 20, 1798[1] |
Named for | James Ross |
Seat | Chillicothe |
Largest city | Chillicothe |
Area | |
• Total | 693.03 sq mi (1,794.9 km2) |
• Land | 689.19 sq mi (1,785.0 km2) |
• Water | 3.84 sq mi (9.9 km2) 0.6% |
Population (2020) | |
• Total | 77,093 ![]() |
• Density | 110/sq mi (40/km2) |
Time zone | UTC−5 (Eastern) |
• Summer (DST) | UTC−4 (EDT) |
Congressional district | 2nd |
Website | www |
Ross County is a county in the Appalachian region of the U.S. state of Ohio. As of the 2020 United States Census, the population was 77,093.[2] Its county seat is Chillicothe,[3] the first and third capital of Ohio. Established on August 20, 1798, the county is named for Federalist Senator James Ross of Pennsylvania.[4] Ross County comprises the Chillicothe, OH Micropolitan Statistical Area, which is also included in the Columbus-Marion-Zanesville, OH Combined Statistical Area.