Hardin County Map, Ohio

Written and Fact-checked by | Updated On: April 30, 2026 | 13:31 ET

Map of Hardin County - Hardin County is a county located in the U.S. state of Ohio. Hardin County Map showing cities, highways, important places and water bodies. Get Where is Hardin County located in the map, major cities in Hardin county, population, areas, and places of interest.

Map of Hardin County, Ohio

Map of Hardin County, Ohio

About Hardin County Map, Ohio: The map showing the county boundary, county seat, major cities, highways, water bodies and neighbouring counties.

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About Hardin County, Ohio

Hardin County is a county located in the U.S. state of Ohio. It's county seat is Kenton. As per 2020 census, the population of Hardin County is 30621 people and population density is square miles. According to the United States Census Bureau, the county has a total area of 470.29 sq mi (1,218 km2). Hardin County was established on -29127.

Hardin County Facts

ContinentNorth America
CountryUnited States
StateOhio
County SeatKenton
Largest City/TownKenton
EstablishedApril 1, 1820
Total Area471 sq mi (1,220 sq km)
Land Area470 sq mi (1,217 sq km)
Water Area1.2 sq mi (3.1 sq km)
Population30,696 (Census 2020)
Population Density65 people per sq mi
Time ZoneEastern Time Zone (ET)
Major HighwaysUS-30, US-68, State Route 31, State Route 67, State Route 81
Neighboring CountiesHancock County, Wyandot County, Marion County, Union County, Logan County, Allen County
Famous ForAgriculture, rural landscapes, small-town communities
Top AttractionsHardin County Courthouse, Hog Creek Wildlife Area, Veterans Memorial Park, local fairs
Official Websitehttps://www.co.hardin.oh.us/

Cities and Towns in Hardin County, Ohio

  • Kenton (county seat) – 8,262 (Census 2020)
  • Ada – 5,952 (Census 2020)
  • Forest – 1,391 (Census 2020)
  • Mount Victory – 627 (Census 2020)

Roads and Highways in Hardin County, Ohio

Hardin County is connected by several highways that provide access to nearby cities and regional routes across Ohio.

  • US-30 – major east-west route connecting the county to Lima and Mansfield
  • US-68 – north-south highway linking Findlay to Springfield
  • State Route 31 – connects Kenton to Marysville and surrounding areas
  • State Route 67 – runs east-west linking Kenton to Bellefontaine
  • State Route 81 – connects Ada to Lima and Kenton

Neighboring Counties of Hardin County

  • Hancock County (north)
  • Wyandot County (northeast)
  • Marion County (east)
  • Union County (southeast)
  • Logan County (south)
  • Allen County (west)

Top Attractions in Hardin County, Ohio

Hardin County offers a quiet rural setting with local parks, historic sites, and community events.

  • Hardin County Courthouse – historic building in downtown Kenton
  • Hog Creek Wildlife Area – natural area for hiking, fishing, and wildlife viewing
  • Veterans Memorial Park – community park with monuments and green space
  • Ohio Northern University in Ada – small university with a scenic campus
  • Hardin County Fairgrounds – hosts annual fairs and events
  • McIntosh Park – local park with playgrounds and walking paths
  • Geneva Park – quiet spot for relaxation and outdoor activities
  • Downtown Kenton – small-town area with shops and dining

Distance from Hardin County to Nearby Cities

  • Hardin County to Columbus – 75 mi (121 km)
  • Hardin County to Lima – 30 mi (48 km)
  • Hardin County to Findlay – 40 mi (64 km)
  • Hardin County to Dayton – 80 mi (129 km)
  • Hardin County to Toledo – 95 mi (153 km)

FAQs about Hardin County

Where is Hardin County located?

Hardin County is located in north-central Ohio.

What is Hardin County known for?

It is known for agriculture, rural communities, and Ohio Northern University.

What is the population of Hardin County?

The population was 30,696 according to the 2020 Census.

What is the county seat of Hardin County?

The county seat is Kenton.

Are there outdoor attractions in Hardin County?

Yes, the county offers parks, wildlife areas, and recreational spaces.