Darke County is named for William Darke, who was an officer in the American Revolutionary War.
Surrounding County Courthouses:
N – Mercer County and Auglaize County
E – Shelby County and Miami County
S – Montgomery County and Preble County
W – Wayne County, Indiana, Randolph County, Indiana and Jay County, Indiana
Created: January 3, 1809 
County Seat:
Greenville 1817 – present
County Courthouse – Greenville
Location: 504 South Broadway / West 4th Street
Built: 1874 – 1875
Style: Second Empire and Renaissance Revival
Architect: Edwin May
Contractor: Rouzer & Rouzer of Dayton
Description: The building faces northeast and is a three story buff colored brick and stone structure. The building id located on landscaped grounds in the center of Greenville. The northeast front has a projecting center section with recessed entrance and Statue of Justice at the roof line. Behind rises a tall square white colored cupola with small round cupola at the top. The roof line is flat. The interior had wood trimming the walls and ceilings. And a wooden staircase. The building houses the County Court of Common Pleas and County Court of Common Pleas – Probate and Juvenile Division. The architect was Edwin May and the contractor was Rouser & Rouser of Dayton. A new entrance has been constructed on the north side in 2020. On the south side of the building is the County Annex constructed in 1870 as a Sheriff’s residence.
See: Ohio Court of Appeals – Dayton ( 2nd Appellate District )
History: The county was created in 1809 and Greenville was selected as the county seat when the county was organized in 1817. The first courthouse was a small two story wood structure built in 1824. The second courthouse was a two story structure designed by Allan LaMotte and built in 1834. The third and present courthouse was constructed in 1874 to 1875.
County Courthouse – Greenville
County Annex (Sheriff Residence) – Greenville
Photos taken 2011