Darke County, Ohio

Darke County
Location within the U.S. state of Ohio
Ohio's location within the U.S.
Coordinates: 40°08′N 84°37′W / 40.13°N 84.62°W / 40.13; -84.62
Country United States
State Ohio
FoundedMarch 1, 1817
Named afterWilliam Darke
SeatGreenville
Largest cityGreenville
Area
  Total
600 sq mi (2,000 km2)
  Land598 sq mi (1,550 km2)
  Water1.7 sq mi (4 km2)  0.3%
Population
 (2020)
  Total
51,881
  Density86/sq mi (33/km2)
Time zoneUTC−5 (Eastern)
  Summer (DST)UTC−4 (EDT)
Congressional district8th
Websitewww.mydarkecounty.com

Darke County is a county in the U.S. state of Ohio. As of the 2020 census, the population was 51,881. Its county seat and largest city is Greenville. The county was created in 1809 and later organized in 1817. It is named for William Darke, an officer in the American Revolutionary War. Darke County comprises the Greenville, OH Micropolitan Statistical Area, which is also included in the Dayton-Springfield-Sidney, OH Combined Statistical Area.