Union County, Kentucky
Union County, Kentucky, has 12,839 residents (July 2025 estimate). Its county seat is Morganfield. It uses Central Time and covers 343 sq mi (888 km²) of land.
- Resident population, July 2025
- 12,839
- Land area
- 343 sq mi (888 km²)
- County seat or government
- Morganfield
- Time zone
- Central TimeUTC-06:00 in January; UTC-05:00 in July
- Median household income
- $60,327 ± $9,086
- Median home value
- $104,500 ± $13,323
- Median rent, with utilities
- $790 ± $40
- Homes lived in by their owners
- 70.2% ± 2.7 points
- County type
- County
- Metro or micro area
- Outside any metro or micro areaNext to: Henderson, KY micro area and Evansville, IN metro area
- Water area
- 20.3 sq mi (52.7 km²)
- State
- Kentucky
- County code (FIPS)
- 21225
- Coordinates (central point)
- 37.658029, -87.951650
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 Union 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
5 ZIP Code areas overlap Union 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 Union County, largest first
- Union County School District13,260 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.
- Morganfield, Kentucky (city)3,185 people
- Sturgis, Kentucky (city)1,864 people
- Breckinridge Center, Kentucky (CDP)1,467 people
- Uniontown, Kentucky (city)874 people
- Waverly, Kentucky (city)403 people
Bordering areas, nearest first
Distances are straight lines between map points.
- Gallatin County, Illinois17 mi northwest
- Webster County, Kentucky17 mi southeast
- Hardin County, Illinois20 mi southwest
- Crittenden County, Kentucky22 mi south
- Henderson County, Kentucky23 mi northeast
- Posey County, Indiana26 mi north
Before using this answer on a form
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