• county
  • FIPS 39065
  • Largest town: Kenton

Hardin County, Ohio

Hardin County had 30,402 residents in the Census Vintage 2024 estimate, on 470.3 square miles of land. It ranks 72nd of 88 in Ohio by population and 32nd by land area.

Population
30,402
#72 of 88 in Ohio · #1,434 in US
Area
470.3 sq mi
#32 of 88 in Ohio · #2,191 in US
Density
65 / sq mi
#77 of 88 in Ohio · #1,243 in US
Median household income
$59,713
#61 of 88 in Ohio · #1,862 in US

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

Hardin County within Ohio. Pin: Columbus.

Measure from here

Tools and pages that start from Hardin County

Hardin County population, land area and income

Hardin County had 30,402 residents in the Census Vintage 2024 estimate, on 470.3 square miles of land. It ranks 72nd of 88 in Ohio by population and 32nd by land area. That works out to 64.6 people per square mile, below the US average of 96.3, and above the national county median.

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

Its SAIPE 2023 median household income of $59,713 is below the national county median among 3,143 counties with an estimate.

National rank among 3,144

Population

30,402

3144th1st

1434th of 3,144 (US)

Land area

470 sq mi

3144th1st

2191st of 3,144 (US)

Density

64.6 / sq mi

3144th1st

1243rd of 3,144 (US)

Median household income

$59,713

3143rd1st

1862nd of 3,143 (US)

Rank within Ohio (88)

Population

30,402

88th1st

72nd of 88 (OH)

Land area

470 sq mi

88th1st

32nd of 88 (OH)

Density

64.6 / sq mi

88th1st

77th of 88 (OH)

Median household income

$59,713

88th1st

61st of 88 (OH)

How Hardin County's population changed since 2020

Hardin County lost 320 residents between the July 2020 and July 2024 estimates, a drop of 1.0%. That ranks 64th 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, Hardin County recorded 1,554 births and 1,806 deaths, a natural change of -252. Net international migration added +169 and net domestic migration, people moving to or from other US counties, came to -189. The largest single component was natural change, which removed 252 people.

30.7k202030.4k202130.4k202230.4k202330.4k2024
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
1,554
Deaths
1,806
Net international migration
+169
Net domestic migration
-189
Change, July 2023 to July 2024
-4

Where Hardin County is

The Census internal point of Hardin County is at 40.660400, -83.664100. It sits in UTM zone 17N. The map shades Ohio's 88 county-equivalents by population change from 2020 to 2024, darker for faster growth, with Hardin 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: Hardin County internal point. Dark pin: Columbus.

Internal point

Decimal
40.660400, -83.664100
DMS
40°39'37.44"N 83°39'50.76"W
UTM
17N 274786.7E 4504472.3N
Geohash
dphx21vxv
Plus code
86GRM86P+59

Towns in Hardin County

3 incorporated places of 1,000+ people have residents in Hardin County, 14,482 people together, or 48% of the county. Each figure counts only the part of the town inside Hardin County; towns marked "part" extend into another county. The largest is Kenton with 7,857.

  1. 01Kenton7,857
  2. 02Ada5,293
  3. 03Forest1,332
Census Vintage 2024 subcounty estimates, county parts of incorporated places (SUMLEV 157).

Counties bordering Hardin County

The Census 2024 county adjacency file lists 7 neighbors for Hardin County. The most populous is Allen County, OH, with 100,866 residents. Distances run between Census internal points in a straight line.

Distance to Columbus and the nearest big city

Columbus is 59.6 miles SE of Hardin County's internal point in a straight line. The nearest place of 100,000 or more is Columbus, OH (population 933,263), 58.8 miles away. The nearest place of 10,000 or more is Bellefontaine, OH (population 14,100), 21.2 miles away.

Hardin County FIPS code

The FIPS code of Hardin County is 39065: state code 39 for Ohio plus county code 065. Use it as text, with the leading zero, when joining Census, BLS, or CDC county tables. SAIPE lists its 2023 median household income as $59,713.

Questions people ask

What is the population of Hardin County, Ohio?

The Census Vintage 2024 estimate for July 1, 2024 is 30,402. That is down 320 people (1.0%) from the July 2020 estimate of 30,722.

What is the FIPS code of Hardin County?

39065. The first two digits (39) are Ohio; the last three (065) identify the county.

What is the largest town in Hardin County?

Kenton, with 7,857 residents inside Hardin County in 2024.

Which counties border Hardin County?

7 county-equivalents border it in the Census 2024 adjacency file: Allen County, OH; Hancock County, OH; Union County, OH; Marion County, OH; Logan County, OH; Auglaize County, OH; Wyandot County, OH.

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.