Ohio County, Kentucky
Ohio County, Kentucky, has 23,934 residents (July 2025 estimate). Its county seat is Hartford. It uses Central Time and covers 587 sq mi (1,521 km²) of land.
- Resident population, July 2025
- 23,934
- Land area
- 587 sq mi (1,521 km²)
- County seat or government
- Hartford
- Time zone
- Central TimeUTC-06:00 in January; UTC-05:00 in July
- Median household income
- $57,798 ± $3,573
- Median home value
- $121,400 ± $6,846
- Median rent, with utilities
- $739 ± $71
- Homes lived in by their owners
- 77.2% ± 2.8 points
- County type
- County
- Metro or micro area
- Outside any metro or micro areaNext to: Owensboro, KY metro area and Bowling Green, KY metro area
- Water area
- 9.13 sq mi (23.7 km²)
- State
- Kentucky
- County code (FIPS)
- 21183
- Coordinates (central point)
- 37.477859, -86.844871
These coordinates mark a central point for the area, not a street address. Income, home value, rent and homes lived in by their owners: U.S. Census Bureau, American Community Survey 2020–2024 5-year estimates, ± margin at 90% confidence; checked on October 13, 2026.
Time zones in Ohio County
| Time zone | Local time and UTC offset | Next clock change |
|---|---|---|
| Central TimeAmerica/Chicago | UTC-06:00 in January; UTC-05:00 in July. Enable JavaScript for the live clock. | Enable JavaScript for upcoming changes. |
Near a time-zone line, check where you are with the time-zone finder. Your phone’s setting can differ.
ZIP Code areas, largest first
- 423209,128 people
- 423766,886 people
- 423665,851 people
- 423475,829 people
- 423783,513 people
- 401191,976 people
- 423491,962 people
- 423521,955 people
- 423431,267 people
- 423281,158 people
- 42368989 people
- 42333644 people
17 ZIP Code areas overlap Ohio County. People counts are 2020–2024 estimates for each whole ZIP area. Mailing ZIPs can differ; check an address with USPS ZIP Code Lookup.
Official county information
We don’t have a website for this county yet. The US government’s local-office directory ↗ lists its offices. A geographic lookup cannot determine eligibility, tax liability or a court obligation.
School districts in Ohio County, largest first
- Ohio County School District23,735 people
Districts with land in the county; a district can cross county lines. People counts are American Community Survey 2020–2024 5-year estimates. A district boundary doesn’t decide which school a student attends.
Cities, towns and communities, largest first
These areas overlap the mapped boundary; an overlap does not mean that every address belongs to both.
- Beaver Dam, Kentucky (city)3,524 people
- Hartford, Kentucky (city)2,649 people
- Pleasant Ridge, Kentucky (CDP)487 people
- Fordsville, Kentucky (city)453 people
- McHenry, Kentucky (city)385 people
- Centertown, Kentucky (city)371 people
- Rockport, Kentucky (city)233 people
- Rosine, Kentucky (CDP)76 people
Bordering areas, nearest first
Distances are straight lines between map points.
- Butler County, Kentucky21 mi southeast
- Daviess County, Kentucky22 mi northwest
- McLean County, Kentucky23 mi west
- Muhlenberg County, Kentucky24 mi southwest
- Hancock County, Kentucky25 mi north
- Grayson County, Kentucky27 mi east
- Breckinridge County, Kentucky31 mi northeast
Before using this answer on a form
Use a precise point for address-level questions. A device accuracy circle can cross a boundary; confirm tax, voting or jury details with the responsible office.
Find the county where you are now, check its ZIP area, or check the time zone where you are.
Areas that only touch the edge
These areas meet the boundary only along a sliver. Most addresses here are not in them; for an address near the line, check with the county.