Grant County, Kentucky

Grant County, Kentucky, has 26,181 residents (July 2025 estimate). Its county seat is Williamstown. It uses Eastern Time and covers 258 sq mi (668 km²) of land.

Louisville/Jefferson CountyLexington-FayetteBowling Green
Grant County in Kentucky
Gallatin CountyOwen CountyPendleton CountyCrittendenWilliamstownDry RidgeCorinth
Grant County and its neighbors (simplified outlines). Open in OpenStreetMap ↗
Resident population, July 2025
26,181
Land area
258 sq mi (668 km²)
County seat or government
Williamstown
Time zone
Eastern TimeUTC-05:00 in January; UTC-04:00 in July
Median household income
$69,178 ± $4,744
Median home value
$209,500 ± $19,378
Median rent, with utilities
$862 ± $39
Homes lived in by their owners
75.1% ± 3.2 points
County type
County
Metro or micro area
Cincinnati, OH-KY-IN metro areaOutlying county
Water area
2.8 sq mi (7.25 km²)
State
Kentucky
County code (FIPS)
21081
Coordinates (central point)
38.649167, -84.625924

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 Grant County

Time zoneLocal time and UTC offsetNext clock change
Eastern TimeAmerica/New_YorkUTC-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

  1. 4103511,415 people
  2. 410977,801 people
  3. 410306,162 people
  4. 410103,239 people
  5. 410033,138 people
  6. 410923,135 people
  7. 410461,312 people
  8. 41052311 people

8 ZIP Code areas overlap Grant 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 Grant County, largest first

  1. Grant County School District21,805 people
  2. Williamstown Independent School District3,613 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.

  1. Crittenden, Kentucky (city)4,084 people
  2. Williamstown, Kentucky (city)3,945 people
  3. Dry Ridge, Kentucky (city)2,441 people
  4. Corinth, Kentucky (city)226 people

Bordering areas, nearest first

Distances are straight lines between map points.

  1. Gallatin County, Kentucky15 mi northwest
  2. Pendleton County, Kentucky15 mi east
  3. Owen County, Kentucky16 mi southwest
  4. Kenton County, Kentucky20 mi north
  5. Harrison County, Kentucky21 mi southeast
  6. Boone County, Kentucky22 mi north
  7. Scott County, Kentucky25 mi south

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.

See this county on Census.gov ↗

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.