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Where am ILOCATED

Clark County, Ohio

Clark County, Ohio, has 135,340 residents (July 2025 estimate). Its county seat is Springfield. It uses Eastern Time and covers 396 sq mi (1,025 km²) of land.

ColumbusClevelandCincinnati
Clark County in Ohio
SpringfieldNorthridgeNew CarlislePark LayneEnon
Clark County and its neighbors (simplified outlines). Open in OpenStreetMap ↗
Resident population, July 2025
135,340
Land area
396 sq mi (1,025 km²)
County seat or government
Springfield
Time zone
Eastern TimeUTC-05:00 in January; UTC-04:00 in July
Median household income
$63,132 ± $2,105
Median home value
$169,900 ± $3,339
Median rent, with utilities
$872 ± $20
Homes lived in by their owners
69.4% ± 1.3 points
County type
County
Metro or micro area
Springfield, OH metro areaCentral county
Water area
5.64 sq mi (14.6 km²)
State
Ohio
County code (FIPS)
39023
Coordinates (central point)
39.917032, -83.783676
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 Clark 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. 4532441,194 people
  2. 4550332,638 people
  3. 4314024,237 people
  4. 4550519,826 people
  5. 4307819,695 people
  6. 4550217,692 people
  7. 4534416,979 people
  8. 4550416,363 people
  9. 4550613,435 people
  10. 453146,536 people
  11. 453875,285 people
  12. 430444,964 people
All 23
  1. 453234,961 people
  2. 453694,120 people
  3. 453683,889 people
  4. 453413,639 people
  5. 431531,112 people
  6. 45319308 people
  7. 43010305 people
  8. 45372265 people
  9. 45349234 people
  10. 45316141 people
  11. 455010 people

23 ZIP Code areas overlap Clark 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 Clark County, largest first

  1. Bethel Township17,966 people
  2. Moorefield Township12,572 people
  3. Springfield Township12,255 people
  4. Mad River Township10,944 people
  5. German Township7,568 people
  6. Pike Township3,716 people
  7. Harmony Township3,622 people
  8. Pleasant Township3,120 people
  9. Green Township2,683 people
  10. Madison Township2,522 people

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

School districts in Clark County, largest first

  1. Springfield City School District54,168 people
  2. Fairborn City School District43,056 people
  3. Northeastern Local School District (Clark County)22,945 people
  4. Tecumseh Local School District18,431 people
  5. Clark-Shawnee Local School District12,730 people
  6. Greenon Local School District11,976 people
  7. Northwestern Local School District (Clark County)10,933 people
  8. Cedar Cliff Local School District6,779 people
  9. Yellow Springs Exempted Village School District4,354 people
  10. Southeastern Local School District (Clark County)4,090 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. Springfield, Ohio (city)58,190 people
  2. Northridge, Ohio (CDP)7,817 people
  3. New Carlisle, Ohio (city)5,544 people
  4. Park Layne, Ohio (CDP)4,301 people
  5. Enon, Ohio (village)2,587 people
  6. Green Meadows, Ohio (CDP)2,144 people
  7. South Charleston, Ohio (village)1,727 people
  8. Holiday Valley, Ohio (CDP)1,660 people
  9. Crystal Lakes, Ohio (CDP)1,245 people
  10. Medway, Ohio (CDP)580 people
  11. South Vienna, Ohio (village)541 people
  12. North Hampton, Ohio (village)329 people
All 17
  1. Donnelsville, Ohio (village)308 people
  2. Catawba, Ohio (village)305 people
  3. Lawrenceville, Ohio (CDP)302 people
  4. Tremont City, Ohio (village)265 people
  5. Clifton, Ohio (village)143 people

Bordering areas, nearest first

Distances are straight lines between map points.

  1. Champaign County, Ohio15 mi north
  2. Greene County, Ohio17 mi south
  3. Madison County, Ohio20 mi east
  4. Miami County, Ohio25 mi west
  5. Montgomery County, Ohio29 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.