Mason County, Kentucky
Mason County, Kentucky, has 16,936 residents (July 2025 estimate). Its county seat is Maysville. It uses Eastern Time and covers 240 sq mi (622 km²) of land.
- Resident population, July 2025
- 16,936
- Land area
- 240 sq mi (622 km²)
- County seat or government
- Maysville
- Time zone
- Eastern TimeUTC-05:00 in January; UTC-04:00 in July
- Median household income
- $52,178 ± $4,215
- Median home value
- $161,500 ± $18,146
- Median rent, with utilities
- $727 ± $51
- Homes lived in by their owners
- 66.1% ± 2.7 points
- County type
- County
- Metro or micro area
- Outside any metro or micro areaNext to: Cincinnati, OH-KY-IN metro area
- Water area
- 6.28 sq mi (16.3 km²)
- State
- Kentucky
- County code (FIPS)
- 21161
- Coordinates (central point)
- 38.594137, -83.828125
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 Mason County
| Time zone | Local time and UTC offset | Next clock change |
|---|---|---|
| Eastern TimeAmerica/New_York | UTC-05:00 in January; UTC-04:00 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 Mason 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 Mason County, largest first
- Mason County School District16,956 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.
- Maysville, Kentucky (city)8,737 people
- Dover, Kentucky (city)247 people
- Germantown, Kentucky (city)232 people
- Sardis, Kentucky (city)98 people
- Mays Lick, Kentucky (CDP)88 people
Bordering areas, nearest first
Distances are straight lines between map points.
- Robertson County, Kentucky14 mi southwest
- Bracken County, Kentucky17 mi west
- Fleming County, Kentucky17 mi southeast
- Brown County, Ohio23 mi north
- Lewis County, Kentucky25 mi east
- Adams County, Ohio25 mi northeast
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