• county
  • FIPS 39037
  • Largest town: Greenville

Darke County, Ohio

Darke County had 51,462 residents in the Census Vintage 2024 estimate, on 598.1 square miles of land. It ranks 49th of 88 in Ohio by population and 9th by land area.

Population
51,462
#49 of 88 in Ohio · #986 in US
Area
598.1 sq mi
#9 of 88 in Ohio · #1,631 in US
Density
86 / sq mi
#66 of 88 in Ohio · #1,021 in US
Median household income
$67,609
#39 of 88 in Ohio · #1,154 in US

Census Vintage 2024 estimates · SAIPE 2023 income · 2024 Gazetteer land area

Darke County within Ohio. Pin: Columbus.

Measure from here

Tools and pages that start from Darke County

Darke County population, land area and income

Darke County had 51,462 residents in the Census Vintage 2024 estimate, on 598.1 square miles of land. It ranks 49th of 88 in Ohio by population and 9th by land area. That works out to 86.0 people per square mile, near the US average of 96.3, and above the national county median.

The median county-equivalent in Ohio has 58,250 residents; Darke County is somewhat smaller.

Its SAIPE 2023 median household income of $67,609 is above the national county median among 3,143 counties with an estimate.

National rank among 3,144

Population

51,462

3144th1st

986th of 3,144 (US)

Land area

598 sq mi

3144th1st

1631st of 3,144 (US)

Density

86.0 / sq mi

3144th1st

1021st of 3,144 (US)

Median household income

$67,609

3143rd1st

1154th of 3,143 (US)

Rank within Ohio (88)

Population

51,462

88th1st

49th of 88 (OH)

Land area

598 sq mi

88th1st

9th of 88 (OH)

Density

86.0 / sq mi

88th1st

66th of 88 (OH)

Median household income

$67,609

88th1st

39th of 88 (OH)

How Darke County's population changed since 2020

Darke County lost 435 residents between the July 2020 and July 2024 estimates, a drop of 0.8%. That ranks 60th of 88 in Ohio for growth. The median Ohio county changed by -0.2%, and the state as a whole by +0.7%.

Since the April 2020 estimates base, Darke County recorded 2,517 births and 2,960 deaths, a natural change of -443. Net international migration added +86 and net domestic migration, people moving to or from other US counties, came to -56. The largest single component was natural change, which removed 443 people.

51.9k202051.7k202151.5k202251.4k202351.5k2024
Census Vintage 2024 county estimates for July 1 of each year. The axis starts above zero so year-to-year changes are visible.

Components of change, April 2020 to July 2024

Births
2,517
Deaths
2,960
Net international migration
+86
Net domestic migration
-56
Change, July 2023 to July 2024
+30

Where Darke County is

The Census internal point of Darke County is at 40.131500, -84.621200. It sits in UTM zone 16N. The map shades Ohio's 88 county-equivalents by population change from 2020 to 2024, darker for faster growth, with Darke County outlined. Dots are towns of 1,000+ people with residents in it.

Shelby County: -0.4%Defiance County: +1.0%Darke County: -0.8%Seneca County: -0.6%Wood County: +0.6%Fayette County: -0.7%Clark County: -0.7%Hocking County: -2.2%Jackson County: +0.2%Miami County: +2.7%Richland County: -0.1%Union County: +13.7%Auglaize County: -1.2%Hancock County: +0.1%Morgan County: -1.6%Van Wert County: -0.1%Hardin County: -1.0%Paulding County: -0.3%Portage County: +1.2%Delaware County: +10.6%Harrison County: -3.1%Ross County: -1.3%Crawford County: -0.9%Clinton County: -0.0%Henry County: -0.5%Pike County: -0.0%Cuyahoga County: -1.7%Highland County: +1.0%Knox County: +1.7%Ottawa County: -1.5%Huron County: -0.6%Erie County: -2.2%Holmes County: +1.0%Lawrence County: -4.0%Marion County: -0.6%Fairfield County: +5.2%Putnam County: -0.6%Guernsey County: -0.5%Vinton County: -2.1%Gallia County: -1.2%Trumbull County: -0.7%Wayne County: -0.2%Perry County: +0.6%Ashland County: -0.1%Fulton County: -1.4%Brown County: +1.4%Lucas County: -1.1%Stark County: -0.1%Medina County: +1.1%Belmont County: -2.4%Williams County: -1.4%Mahoning County: -1.0%Noble County: +1.1%Greene County: +2.5%Preble County: -0.5%Allen County: -1.2%Athens County: +1.3%Jefferson County: -2.0%Adams County: +0.8%Monroe County: -2.3%Washington County: -2.2%Logan County: -0.1%Franklin County: +2.4%Warren County: +5.3%Wyandot County: -2.1%Licking County: +3.4%Hamilton County: +0.8%Clermont County: +2.6%Butler County: +2.2%Coshocton County: +1.1%Geauga County: -0.0%Sandusky County: -0.0%Ashtabula County: -0.6%Carroll County: -0.9%Tuscarawas County: -1.2%Morrow County: +2.7%Montgomery County: +0.1%Mercer County: +0.3%Lake County: -0.1%Pickaway County: +6.0%Madison County: +3.8%Muskingum County: +0.1%Meigs County: -3.0%Columbiana County: -1.8%Lorain County: +2.7%Scioto County: -2.8%Champaign County: +0.4%Summit County: -0.3%
Change 2020 to 2024
  1. < -1.4%
  2. < -0.6%
  3. < -0.0%
  4. < +1.1%
  5. ≥ +1.1%
no data

Orange pin: Darke County internal point. Dark pin: Columbus.

Internal point

Decimal
40.131500, -84.621200
DMS
40°07'53.40"N 84°37'16.32"W
UTM
16N 702673.6E 4445065.2N
Geohash
dp5u63swz
Plus code
86GQ49JH+JG

Towns in Darke County

6 incorporated places of 1,000+ people have residents in Darke County, 21,194 people together, or 41% of the county. Each figure counts only the part of the town inside Darke County; towns marked "part" extend into another county. The largest is Greenville with 12,701.

  1. 01Greenville12,701
  2. 02Versailles2,719
  3. 03Arcanum2,333
  4. 04Union City1,564
  5. 05Ansonia1,149
  6. 06Bradford (part)728
Census Vintage 2024 subcounty estimates, county parts of incorporated places (SUMLEV 157).

Counties bordering Darke County

The Census 2024 county adjacency file lists 8 neighbors for Darke County, including 3 across a state line. The most populous is Montgomery County, OH, with 537,443 residents. Distances run between Census internal points in a straight line.

Distance to Columbus and the nearest big city

Columbus is 86.5 miles E of Darke County's internal point in a straight line. The nearest place of 100,000 or more is Dayton, OH (population 136,346), 32.7 miles away. The nearest place of 10,000 or more is Greenville, OH (population 12,701), 1.9 miles away.

Darke County FIPS code

The FIPS code of Darke County is 39037: state code 39 for Ohio plus county code 037. Use it as text, with the leading zero, when joining Census, BLS, or CDC county tables. SAIPE lists its 2023 median household income as $67,609.

Questions people ask

What is the population of Darke County, Ohio?

The Census Vintage 2024 estimate for July 1, 2024 is 51,462. That is down 435 people (0.8%) from the July 2020 estimate of 51,897.

What is the FIPS code of Darke County?

39037. The first two digits (39) are Ohio; the last three (037) identify the county.

What is the largest town in Darke County?

Greenville, with 12,701 residents inside Darke County in 2024.

Which counties border Darke County?

8 county-equivalents border it in the Census 2024 adjacency file: Montgomery County, OH; Miami County, OH; Wayne County, IN; Shelby County, OH; Mercer County, OH; Preble County, OH; Randolph County, IN; Jay County, IN.

Sources and data as of

Data as of: Census Vintage 2024 population estimates, 2024 Gazetteer land area and internal points, SAIPE 2023 median household income.

  1. 01Census Vintage 2024 county population estimates
  2. 02Census 2024 Gazetteer, counties
  3. 03Census SAIPE 2023 state and county estimates
  4. 04Census Vintage 2024 subcounty population estimates
  5. 05Census 2024 county adjacency file
  6. 06Census 2024 cartographic boundary file, counties (1:5,000,000)

How every number is computed: methodology. Spotted a wrong figure? Report an error.