Simpson County, Kentucky

Simpson County, Kentucky, has 20,788 residents (July 2025 estimate). Its county seat is Franklin. It uses Central Time and covers 234 sq mi (607 km²) of land.

Louisville/Jefferson CountyLexington-FayetteBowling Green
Simpson County in Kentucky
Franklin
Simpson County and its neighbors (simplified outlines). Open in OpenStreetMap ↗
Resident population, July 2025
20,788
Land area
234 sq mi (607 km²)
County seat or government
Franklin
Time zone
Central TimeUTC-06:00 in January; UTC-05:00 in July
Median household income
$59,858 ± $5,221
Median home value
$229,400 ± $21,713
Median rent, with utilities
$1,012 ± $69
Homes lived in by their owners
66.7% ± 3.2 points
County type
County
Metro or micro area
Franklin, KY micro areaCentral county
Water area
2.28 sq mi (5.91 km²)
State
Kentucky
County code (FIPS)
21213
Coordinates (central point)
36.740929, -86.581787

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 Simpson County

Time zoneLocal time and UTC offsetNext clock change
Central TimeAmerica/ChicagoUTC-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

  1. 4210442,076 people
  2. 4213419,380 people
  3. 422065,897 people
  4. 422021,958 people
  5. 421701,938 people

5 ZIP Code areas overlap Simpson 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 Simpson County, largest first

  1. Simpson County School District19,972 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. Franklin, Kentucky (city)10,360 people

Bordering areas, nearest first

Distances are straight lines between map points.

  1. Logan County, Kentucky18 mi northwest
  2. Warren County, Kentucky20 mi northeast
  3. Sumner County, Tennessee20 mi south
  4. Allen County, Kentucky22 mi east
  5. Robertson County, Tennessee22 mi southwest

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.