Darke County GIS Maps
Darke County, Ohio, has 51,881 residents across 31,435 parcels and covers 598.1 square miles. The population declined 2% between the 2010 and 2020 census. More residents left than arrived over that decade. The FIPS code for Darke County is 39037.
Greenville is the county's largest population center. Darke County also includes 16 zip codes, 17 public school districts and 38 municipalities. Those boundaries help explain why population, schools, and housing can look different from one part of the county to another. The map below shows how those county lines, zip codes, and school districts fit together, and the sections that follow use that same geography to show parcel data, population, demographics, school enrollment and housing patterns in more detail.
Maps, GIS layers, Parcels and sample data. Paid packages add full layers, analytics and database files.
Darke County Trends
- Population
- 51,881▾
- Median Home Value
- $169,100▴
- K-12 Enrollment
- 19,391▴
County analytics dashboards with historical trends & projections included in package downloads.
Free starter access previews county maps, lightweight GIS, and sample data. Paid packages unlock full GIS layers, analytics, and database files.
Darke County Maps
The maps below show a few of the county map styles included in our downloads. County packages include map exports in JPEG, PNG, SVG, PDF and GeoTIFF formats plus more than 20 GIS layers for mapping, research and analysis. Available layers include zip codes, area codes, subdivisions, school districts, political boundaries, roads, water features, points of interest and more.
County packages also include historical county demographics, business intelligence, analytical dashboards, AI-ready prompts, markdown files and related reference data. Everything is organized to save hours of manual work collecting current data, cleaning it and joining it together. That makes it easier to move faster on analytics, due diligence, business planning and location research. Paid packages are built for commercial use, but some package contents include source-specific attribution or notice guidance. Review Licensing & Data Source Notices.
Darke County Parcels
Darke County has 31,435 mapped parcels covering 373,979 acres. The median assessed value is $145,310. The median lot size is 4.59 acres. 7,155 parcels are 10 acres or larger. Residential accounts for 67.9% of parcels. Agricultural follows at 25.1% and commercial at 6.2%. Of the parcels with a recorded build year, half were built in 1957 or earlier. The records carry 21,278 distinct owner names. Owner names, mailing addresses, site addresses, assessed values and lot sizes are on nearly every parcel. Browse the interactive Darke County Parcel viewer here.
Darke County Parcel Data Coverage
| Field | Parcels | Coverage |
|---|---|---|
| Parcel ID | 31,435 | 100% |
| Owner name | 31,435 | 100% |
| Owner mailing address | 31,435 | 100% |
| Site address | 31,435 | 100% |
| Land use code | 31,435 | 100% |
| Land use description | 31,378 | 99.8% |
| Assessed value | 31,333 | 99.7% |
| Land value | 31,333 | 99.7% |
| Improvement value | 31,333 | 99.7% |
| Acreage | 31,435 | 100% |
| Parcel boundary | 31,435 | 100% |
| Download all Darke County parcels. | ||
Field coverage measured across all Darke County parcel records.
Darke County Population
Darke County had 51,881 residents in 2020. That was 2% lower than in 2010. Darke County had 1,428 fewer people in 2020 than it did in 2000, which points to a long-term population decline. The county is fairly spread out, with about 87 people per square mile. Some of the county's most populated postal areas include Greenville, Arcanum and Versailles.
Population Trend in Darke County OH
Darke County Population per 2000, 2010 and 2020 census counts with a baseline 2030 projection.
Darke County Zip Codes
Darke County has 16 zip codes. Some of the county's most populated zip codes include Greenville (45331), Arcanum (45304) and Versailles (45380). Greenville is the largest zip by population, with about 22,213 residents or 43% of the county total. Together, the three largest zips account for about 68% of all county residents based on 2020 population estimates.
Most Populated Zip Codes in Darke County OH
| ZIP | Area | Population | Trend |
|---|---|---|---|
| 45331 | Greenville | 22,213 | ▾ -3.1% |
| 45304 | Arcanum | 7,532 | ▴ 3.2% |
| 45380 | Versailles | 5,573 | ▴ 1.8% |
| 45308 | Bradford | 4,488 | ▾ -4.1% |
| 45390 | Union City | 3,269 | ▾ -5.5% |
| Download all zip code data | |||
Darke County Zip Code populations and trends per most recent census data.
Darke County Demographics
Darke County has a median age of 42, which makes the county a little older than Ohio overall. About 23.7% of residents are under 18, while 20.2% are 65 or older. That gives the county a fairly even mix of younger families and older adults. The largest age group is 25 to 44 at about 28% of the population, which points to a solid working-age base. About 16.5% of adults have a bachelor's degree or higher, above the statewide figure of 30.9%. The county is mostly White by population, though Hispanic, Asian, Black and multiracial residents are also part of the local mix.
Key Demographics for Darke County OH
Median Age
42
Under 18
23.7%
Age 65+
20.2%
Bachelor's+
16.5%
Darke County School Districts
Darke County is served by 17 public school districts with 19,391 students enrolled in 2024. The largest districts on the county map are Northmont City, Greenville City and Versailles Exempted Village. Those three districts account for about 42% of public school enrollment in the map area. Total enrollment has stayed fairly steady in recent years, but it is slightly lower than it was in 2017.
Largest School Districts by Enrollment in Darke County OH
| District | Enrollment | Share | Trend |
|---|---|---|---|
| Northmont City School District | 4,676 | 24.1% | ▴ 0.2% |
| Greenville City School District | 2,249 | 11.6% | ▾ -4.6% |
| Versailles Exempted Village School District | 1,249 | 6.4% | ▾ -0.3% |
| Arcanum-Butler Local School District | 1,155 | 6% | ▾ -1.5% |
| St. Henry Consolidated Local School District | 1,085 | 5.6% | ▴ 3.5% |
| Download all school district data | |||
Darke County school district enrollment and trends per most recent NCES reporting data.
Darke County Housing & Real Estate
Darke County has a median home value of $169,100 and a median gross rent of $747. About 72% of occupied homes in the county are owner-occupied, so the local housing market leans heavily toward ownership. Home values run below the Ohio median, while rents come in below the state average. In March 2026, the median listing price was $257,000 and homes spent about 50 days on the market.
Darke County Housing Mix
Darke County housing mix: owner, renter and vacant units.
Darke County Housing Trends
Darke County median home value and rent trend (last 5 years).
Businesses in Darke County, OH
Darke County has 1,915 business listings across 466 categories. The largest categories in Darke County business listings are Churches & Religious Organizations (90, 4.7%), Auto Repair (39, 2.0%), and Gas Stations (31, 1.6%). The full Darke County business listings dataset includes names, categories, addresses and contact details where available. Darke County packages also include U.S. Census County Business Patterns data with establishment counts, employment and payroll by industry sector.
Top Business Categories in Darke County, OH
| Category | Businesses | Share |
|---|---|---|
| Churches & Religious Organizations | 90 | 4.7% |
| Auto Repair | 39 | 2.0% |
| Gas Stations | 31 | 1.6% |
| Farm | 27 | 1.4% |
| Community & Nonprofits | 26 | 1.4% |
| Parks & Recreation | 25 | 1.3% |
| Insurance Agencies | 23 | 1.2% |
| Contractors | 23 | 1.2% |
| Beauty Salons | 21 | 1.1% |
| Building Supply Store | 21 | 1.1% |
Darke County Business Listings
| Business | Category | City |
|---|---|---|
| Roberts Ranch | Accommodation | Bradford |
| Esarey & Associates, LLC | Accountant | Greenville |
| Greenville Municipal Pool | Active Life | Greenville |
| Recovery And Wellness Centers | Addiction Rehabilitation Center | Greenville |
| Huntington Billboard Co. | Advertising Agency | Gordon |
| Tree Hill Farms | Agricultural Cooperatives | New Weston |
| Rural King Supply | Agricultural Service | Greenville |
| First Choice Ag | Agriculture | Versailles |
| Darke County Airport | Airport | Versailles |
| Focus Fastpitch | Amateur Sports Team | Arcanum |
| Download Darke County business listings | ||
Darke County business listings sourced from Overture Maps. Includes locations with a high level of confidence.
Darke County Basemaps
Darke County map and data packages include a set of useful basemaps to help you get started quickly. These include a custom light grey canvas, USGS topo, imagery and other reference layers that make it easier to build clear, meaningful county maps using the included GIS layers, your own data or both. Pre-rendered map tiles for the light grey basemap are included so you can use them offline or host them on your own CDN.
Get the Full Darke County Data Package
This page shows a preview of what's included in the Darke County data package. The full package gives you a ready-to-use county data system with GIS layers, historical data, maps, database files and planning tools that save hours of manual data gathering, cleanup and joins. Everything is organized to help you skip data wrangling and start analysis faster.
- 20+ GIS layers for parcels, zip codes, school districts, roads, water, boundaries and more
- Historical county demographics, housing, income and trend data
- ZIP code population files and school district enrollment history
- Database files, markdowns, AI-ready prompts and documentation
- Map exports in PNG, JPEG, PDF, SVG and GeoTIFF formats
- Offline-ready data explorer, map and analytics tools
Paid packages support commercial use, client work, and derived outputs. Some package contents may include source-specific attribution or provider notices. See Licensing & Data Source Notices.
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Nearby Counties
Browse county data pages for the counties that border Darke County. These nearby pages include the same mix of county maps, demographic summaries, school district context, housing trends and package links.