Darke County, Ohio

County seat: Greenville · Population 51,520 (2025) · 598 sq mi

Darke County is the 49th most populous of Ohio's 88 counties, with 51,520 people (2025 estimate). Its county seat is Greenville. The map shows its 21 cities and towns and the 8 neighboring counties.

Map of Darke County, Ohio with cities, towns and the county boundary
Darke County, Ohio with its cities and towns, unincorporated communities (CDPs) and neighboring counties. Boundaries: U.S. Census Bureau, 2025. Free to use with attribution (CC BY 4.0).
Download PDF (Letter) 132 KBPNG image 97 KBOhio county map

Darke County facts

County seat
Greenville
Population (2025 estimate)
51,520 −0.7% since 2020
Land area
598 sq mi 9th largest of 88
Water area
2 sq mi
Population density
86 per sq mi
Established
1809
Named after
William Darke General in the US military 1736-
Largest city
Greenville 12,680
Median household income
$64,486
Cities and towns
21 plus 1 CDPs
ZIP codes
25
Time zone
Eastern
FIPS code
39037

Cities and towns in Darke County

Darke County has 21 incorporated cities, towns and villages. Populations count the people living inside Darke County; cities that cross a county line also list the other counties.

NameTypePopulation 2025Also in
Greenville (county seat)City12,680
VersaillesVillage2,723
ArcanumVillage2,327
Union CityVillage1,567
AnsoniaVillage1,147
New MadisonVillage831
BradfordVillage729Miami County
Wayne LakesVillage685
GettysburgVillage463
PitsburgVillage377
OsgoodVillage302
HollansburgVillage242
GordonVillage239
North StarVillage229
PalestineVillage180
RossburgVillage161
New WestonVillage121
YorkshireVillage105
CastineVillage101
IthacaVillage99
BurkettsvilleVillage64Mercer County

Unincorporated communities (CDPs)

Census-designated places are communities without their own city government; the county provides their services.

CommunityPopulationAlso in
Ithaca78

ZIP codes in Darke County

25 ZIP codes reach into Darke County. ZIP codes ignore county lines, so some also cover a neighboring county.

Population of Darke County, 2020–2025

Darke County shrank by 367 people (−0.7%) between April 2020 and July 2025: 338 more deaths than births and a net loss of 11 people from migration.

Year (July 1)Population
202051,901
202151,597
202251,449
202351,380
202451,445
202551,520

Neighboring counties

Printable Darke County map

The PDF is a vector file with real text: it prints sharp on Letter paper and you can search it for a town. The PNG is 2400 pixels wide for slides and documents. Both are free to use with a credit to WhichCounty.

Paste this code to embed the map on your site:

Sources

Back to the Ohio county map with all 88 counties. Found an error? Tell us.