Your Guide to Darke County, Ohio
Looking for trusted businesses, services and local resources in Darke County, Ohio? FindItOhio.com helps residents and visitors discover local companies, professionals and community information across Darke County, including Greenville, the county seat.
Quick answer: Darke County is one of Ohio’s 88 counties. Its county seat is Greenville, it was established in 1809, and it has an estimated 51,520 residents as of 2025.
At a Glance
- County seat: Greenville
- Established: Jan 3, 1809
- Formed from: Miami County
- Named for: General William Darke (1736 to 1801), Revolutionary War officer
- Estimated population (2025): 51,520
- Total area: 599.80 sq mi
- FIPS code: 39037
About Darke County
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 Micropolitan Statistical Area, which is also included in the Dayton, Springfield, Sidney Combined Statistical Area.
History of Darke County
Human activity in Darke County is believed to have emerged under the Adena culture during the Woodland period, roughly between 500 BCE and 100 AD. The Adena were later replaced by a series of Native American trading cultures known as the Ohio Hopewell, which were replaced by the Fort Ancient culture by 1000 AD. Although Darke County was in these cultures’ spheres of influence, no major archaeological sites remain in the area. By the 1600s, the Miami people had settled the region, establishing their principal village at what is now Piqua in neighboring Miami County.
Europeans nominally owned the Louisiana Territory for centuries, dividing it among several different European countries over the years. Despite this, even as major settlements such as Detroit and St. Louis were established across the region, Darke County remained unsettled for most of that time.
The first major settlement was established at Fort Jefferson in 1791, and the base was used as a staging ground during the Northwest Indian War, but saw no action. Another camp was established in 1793 at Fort Greenville, where the historic Treaty of Greenville was signed in 1795, ceding control of Southern Ohio from the Native American tribes to the United States.
Cities and Villages in Darke County
Cities
Greenville â€
Villages
Ansonia, Arcanum, Bradford, Burkettsville, Castine, Gettysburg, Gordon, Hollansburg, Ithaca, New Madison, New Weston, North Star, Osgood, Palestine, Pitsburg, Rossburg, Union City, Versailles, Wayne Lakes, Yorkshire
Find Local Businesses in Darke County
Browse the FindItOhio.com business directory to find restaurants, contractors, professional services, shops and more serving Darke County. Own a business here? Add your free business listing so local customers can find you.
Background Checks, Process Serving and Private Investigations
Residents and employers in Darke County can get BCI and FBI LiveScan fingerprinting, FD-258 fingerprint cards, process serving and licensed private investigations from these Ohio providers:
- Ohio Security & Investigations, Youngstown: licensed private investigations and fingerprinting. Call (888) 341-6960 or visit ohioinvestigators.com.
- 10-8 Protective Services, Columbus: investigations, fingerprinting and process serving. Call (800) 949-8521 or visit 10-8protectiveservices.com.
Frequently Asked Questions
What is the county seat of Darke County, Ohio?
Greenville is the county seat of Darke County, Ohio.
When was Darke County established?
Darke County was established on Jan 3, 1809. It was formed from Miami County.
Who or what is Darke County named for?
Darke County is named for General William Darke (1736 to 1801), Revolutionary War officer.
How many people live in Darke County, Ohio?
Darke County has an estimated population of 51,520 as of 2025.
What cities are in Darke County, Ohio?
Cities in Darke County include Greenville †.
Where can I find local businesses in Darke County?
Search the FindItOhio.com business directory to find local businesses and services in Darke County, Ohio.
How do I list my Darke County business on FindItOhio.com?
Visit the free business listing page on FindItOhio.com and submit your business name, address, phone number and website.
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County background adapted from the Wikipedia article Darke County, Ohio, available under the Creative Commons Attribution ShareAlike 4.0 license.