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Where am ILOCATED

Clinton County, Ohio

Clinton County, Ohio, has 42,301 residents (July 2025 estimate). Its county seat is Wilmington. It uses Eastern Time and covers 409 sq mi (1,059 km²) of land.

ColumbusClevelandCincinnati
Clinton County in Ohio
Fayette CountyWarren CountyWilmingtonBlanchesterSabinaLynchburgNew Vienna
Clinton County and its neighbors (simplified outlines). Open in OpenStreetMap ↗
Resident population, July 2025
42,301
Land area
409 sq mi (1,059 km²)
County seat or government
Wilmington
Time zone
Eastern TimeUTC-05:00 in January; UTC-04:00 in July
Median household income
$70,407 ± $5,534
Median home value
$211,900 ± $8,994
Median rent, with utilities
$910 ± $44
Homes lived in by their owners
71.8% ± 2.2 points
County type
County
Metro or micro area
Wilmington, OH micro areaCentral county
Water area
3.6 sq mi (9.33 km²)
State
Ohio
County code (FIPS)
39027
Coordinates (central point)
39.416681, -83.804583
Open this point in the location finder

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 Clinton 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. 4517722,924 people
  2. 4506811,597 people
  3. 451079,190 people
  4. 453357,359 people
  5. 451355,291 people
  6. 451424,187 people
  7. 451694,050 people
  8. 451133,877 people
  9. 451593,588 people
  10. 451481,592 people
  11. 451461,324 people
  12. 45164175 people
All 13
  1. 4516660 people

13 ZIP Code areas overlap Clinton 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.

Townships in Clinton County, largest first

  1. Marion Township5,516 people
  2. Richland Township3,524 people
  3. Union Township3,147 people
  4. Vernon Township3,016 people
  5. Chester Township2,824 people
  6. Green Township2,509 people
  7. Adams Township2,404 people
  8. Clark Township2,130 people
  9. Washington Township1,558 people
  10. Jefferson Township1,280 people
  11. Liberty Township651 people
  12. Wilson Township424 people
All 13
  1. Wayne Township409 people

People counts are American Community Survey 2020–2024 5-year estimates. All townships in Ohio, by county

School districts in Clinton County, largest first

  1. Wilmington City School District20,024 people
  2. Miami Trace Local School District15,526 people
  3. Clinton-Massie Local School District11,351 people
  4. Blanchester Local School District8,796 people
  5. Greeneview Local School District8,246 people
  6. East Clinton Local School District7,375 people
  7. Lynchburg-Clay Local School District6,524 people
  8. Fairfield Local School District5,056 people
  9. Fayetteville-Perry Local School District4,475 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. Wilmington, Ohio (city)12,620 people
  2. Blanchester, Ohio (village)4,538 people
  3. Sabina, Ohio (village)2,734 people
  4. Lynchburg, Ohio (village)1,493 people
  5. New Vienna, Ohio (village)1,214 people
  6. Clarksville, Ohio (village)573 people
  7. Martinsville, Ohio (village)352 people
  8. Midland, Ohio (village)337 people
  9. Port William, Ohio (village)175 people

Bordering areas, nearest first

Distances are straight lines between map points.

  1. Greene County, Ohio19 mi north
  2. Highland County, Ohio19 mi southeast
  3. Warren County, Ohio20 mi west
  4. Fayette County, Ohio21 mi northeast
  5. Clermont County, Ohio31 mi southwest
  6. Brown County, Ohio34 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.