Hardin County GIS Maps
Hardin County, Ohio, has 30,696 residents and covers 470.4 square miles. The population declined 4.2% between the 2010 and 2020 census. More residents left than arrived over that decade. The FIPS code for Hardin County is 39065.
Kenton is the county's largest population center. Hardin County also includes 10 zip codes, 8 public school districts and 34 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 population, demographics, school enrollment and housing patterns in more detail.
Maps, GIS layers and sample data. Paid packages add full layers, analytics and database files.
Hardin County Trends
- Population
- 30,696▾
- Median Home Value
- $134,800▴
- K-12 Enrollment
- 7,581▾
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.
Hardin 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.
Hardin County Population
Hardin County had 30,696 residents in 2020. That was 4.2% lower than in 2010. Hardin County had 1,249 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 65 people per square mile. Some of the county's most populated postal areas include Kenton, Ada and Forest.
Population Trend in Hardin County OH
Hardin County Population per 2000, 2010 and 2020 census counts with a baseline 2030 projection.
Hardin County Zip Codes
Hardin County has 10 zip codes. Some of the county's most populated zip codes include Kenton (43326), Ada (45810) and Forest (45843). Kenton is the largest zip by population, with about 13,328 residents or 43% of the county total. Together, the three largest zips account for about 81% of all county residents based on 2020 population estimates.
Most Populated Zip Codes in Hardin County OH
| ZIP | Area | Population | Trend |
|---|---|---|---|
| 43326 | Kenton | 13,328 | ▾ -2.1% |
| 45810 | Ada | 7,840 | ▾ -7.3% |
| 45843 | Forest | 3,768 | ▴ 1.8% |
| 43310 | Belle Center | 3,185 | ▴ 2.6% |
| 45812 | Alger | 1,835 | ▾ -5.6% |
| Download all zip code data | |||
Hardin County Zip Code populations and trends per most recent census data.
Hardin County Demographics
Hardin County has a median age of 35.3, which makes the county a little younger than Ohio overall. About 23.2% of residents are under 18, while 16.1% 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 26.7% of the population, which points to a solid working-age base. About 18.9% 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 Hardin County OH
Median Age
35.3
Under 18
23.2%
Age 65+
16.1%
Bachelor's+
18.9%
Hardin County School Districts
Hardin County is served by 8 public school districts with 7,581 students enrolled in 2024. The largest districts on the county map are Kenton City, Benjamin Logan Local and Elgin Local. Those three districts account for about 59% 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 Hardin County OH
| District | Enrollment | Share | Trend |
|---|---|---|---|
| Kenton City School District | 1,851 | 24.4% | ▴ 0.4% |
| Benjamin Logan Local School District | 1,591 | 21% | ▾ -3.3% |
| Elgin Local School District | 1,022 | 13.5% | ▴ 2.5% |
| Riverdale Local School District | 947 | 12.5% | ▾ -2.8% |
| Ada Exempted Village School District | 865 | 11.4% | ▾ -0.2% |
| Download all school district data | |||
Hardin County school district enrollment and trends per most recent NCES reporting data.
Hardin County Housing & Real Estate
Hardin County has a median home value of $134,800 and a median gross rent of $733. About 73% 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 $197,475 and homes spent about 44 days on the market.
Hardin County Housing Mix
Hardin County housing mix: owner, renter and vacant units.
Hardin County Housing Trends
Hardin County median home value and rent trend (last 5 years).
Businesses in Hardin County, OH
Hardin County has 1,130 business listings across 342 categories. The largest categories in Hardin County business listings are Churches & Religious Organizations (66, 5.8%), Landmark And Historical Building (26, 2.3%), and Gas Stations (22, 1.9%). The full Hardin County business listings dataset includes names, categories, addresses and contact details where available. Hardin County packages also include U.S. Census County Business Patterns data with establishment counts, employment and payroll by industry sector.
Top Business Categories in Hardin County, OH
| Category | Businesses | Share |
|---|---|---|
| Churches & Religious Organizations | 66 | 5.8% |
| Landmark And Historical Building | 26 | 2.3% |
| Gas Stations | 22 | 1.9% |
| Medical Offices | 19 | 1.7% |
| Auto Repair | 18 | 1.6% |
| Farm | 18 | 1.6% |
| Parks & Recreation | 17 | 1.5% |
| Contractors | 16 | 1.4% |
| Pizza Restaurants | 15 | 1.3% |
| Post Offices | 14 | 1.2% |
Hardin County Business Listings
| Business | Category | City |
|---|---|---|
| Ohio Northern University Bookstore | Academic Bookstore | Ada |
| Brookhart Hall | Accommodation | Ada |
| Hughes-Collins Katrina | Accountant | Kenton |
| Kcolwell.com | Advertising Agency | Ada |
| LandTech Co | Agricultural Service | Forest |
| Parsons Gold Apiaries | Agriculture | Forest |
| Hardin County Airport | Airport | Kenton |
| Ashok D Gandhi DO | Allergist | Kenton |
| BKP Ambulance Services | Ambulance And Ems Services | Kenton |
| Plaza Inn Casual Family Restaurant | American Restaurants | Mt Victory |
| Download Hardin County business listings | ||
Hardin County business listings sourced from Overture Maps. Includes locations with a high level of confidence.
Hardin County Basemaps
Hardin 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 Hardin County Data Package
This page shows a preview of what's included in the Hardin 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 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 Hardin County. These nearby pages include the same mix of county maps, demographic summaries, school district context, housing trends and package links.