County · Ohio
Clark County, Ohio
Clark County, Ohio. Clark County had 135,340 residents in 2025 by the Census Bureau's estimate, down 0.5% since 2020, while Ohio grew 0.9%. It holds 27 places (10 cities, villages and boroughs, 10 towns and townships and 7 census-designated) and 45 census tracts. GEOID 39023.
Clark County is the county of the Springfield, OH metropolitan statistical area (the Census Bureau's July 2023 delineation).
Residents, July 2025 estimate
135,340
Census Bureau estimate (no margin published)
2020 Census count: 136,001 · ACS 2020-2024: 135,158
Median household income
$63,132
±$2,105 (90% margin)
Ohio: $71,389
Median home value
$169,900
±$3,339 (90% margin)
Ohio: $214,800
Median gross rent
$872
±$20 (90% margin)
Ohio: $1,034
How many people live in Clark County, and is it growing?
The 2020 Census counted 136,001 residents in Clark County. The Census Bureau estimates 135,340 for July 1, 2025, down 0.5% since 2020, while Ohio grew 0.9%. The 2020-2024 American Community Survey puts the population at 135,158 over 396 square miles of land.
| Measure | Clark County | Ohio | Change since 2015-2019 |
|---|---|---|---|
| Total population | 135,158 | 11,810,293 | +432 |
| Households | 55,975±587 | 4,863,191 | +1,279 |
| Average household size | 2.37±0.02 | 2.37 | −0.04 |
| Housing units | 61,126±92 | 5,292,391 | no clear change |
Clark County's population since 2000
From 144,742 in 2000 to 135,340 in 2025: down 6.5%. The 2000, 2010 and 2020 figures are census counts. The 2005 figure is the Census Bureau's intercensal estimate, revised to fit the 2000 and 2010 counts and drawn on 2010 boundaries; 2015 and 2025 are July 1 estimates made from the census before them.
Source: The 2000, 2010 and 2020 Census counts and the Census Bureau's population estimates (intercensal 2000-2010, Vintage 2020, Vintage 2025) · Census population estimates
Source: American Community Survey 2020-2024 5-year estimates, U.S. Census Bureau (released January 2026); PEP Vintage 2025 (CO-EST2025); 2020 Census · Check it at data.census.gov
What cities and towns are in Clark County?
Clark County holds 27 places: 10 cities, villages and boroughs (incorporated places), 10 towns and townships (county subdivisions with their own government) and 7 census-designated places. The largest is Springfield with 58,281 residents (2025 estimate). Places that cross a county line are listed with the share of their 2020 residents who live in this county.
| Springfield | 58,662 | $47,143 |
|---|---|---|
| Bethel Township, Clark County | 18,050 | $66,519 |
| Moorefield Township, Clark County | 12,622 | $85,583 |
| Springfield Township, Clark County | 12,334 | $88,180 |
| Mad River Township, Clark County | 10,984 | $83,700 |
| German Township, Clark County | 7,578 | $73,617 |
| Northridge | 7,518 | $84,974 |
| New Carlisle | 5,559 | $64,443 |
| Park Layne | 4,248 | $82,604 |
| Pike Township, Clark County | 3,733 | $95,833 |
| Harmony Township, Clark County | 3,652 | $95,966 |
| Pleasant Township, Clark County | 3,143 | $77,583 |
| Green Township, Clark County | 2,711 | $79,762 |
| Madison Township, Clark County | 2,532 | $56,654 |
| Enon | 2,449 | $96,912 |
| Green Meadows | 2,373 | $73,281 |
| South Charleston | 1,706 | $49,896 |
| Holiday Valley | 1,480 | $91,705 |
| Crystal LakesGEOID 3919596 | 1,394 | $62,583 |
| LawrencevilleGEOID 3942210 | 667 | $55,163 |
| MedwayGEOID 3948832 | 627 | $90,814 |
| North HamptonGEOID 3956588 | 457 | $76,528 |
| South Vienna | 402 | $69,118 |
| Tremont City | 352 | $70,500 |
| Donnelsville | 255 | $67,708 |
| CatawbaGEOID 3912560 | 245 | $68,500 |
| CliftonGEOID 3916056 | 131 | $82,969 |
Source: American Community Survey 2020-2024 5-year estimates, U.S. Census Bureau (released January 2026); 2020 place-by-county parts · Check it at data.census.gov
Who lives in Clark County?
The median resident of Clark County is 41.2 years old; 22.6% are under 18 and 20.3% are 65 or older. The largest group is non-Hispanic white residents at 81.7%, then non-Hispanic Black residents at 8.0%. 2.6% of residents were born outside the United States.
| Measure | Clark County | Ohio | Change since 2015-2019 |
|---|---|---|---|
| Median age | 41.2±0.3 | 39.7 | no clear change |
| Under 18 years | 22.6%±0.1 pts | 22.0% | – |
| 65 years and over | 20.3%±0.1 pts | 18.3% | – |
| Hispanic or Latino (any race) | 4.2% | 4.8% | +0.8 pts |
| White alone, not Hispanic | 81.7%±0.2 pts | 75.8% | −2.4 pts |
| Black or African American alone, not Hispanic | 8.0%±0.5 pts | 12.0% | no clear change |
| Asian alone, not Hispanic | 0.6%±0.1 pts | 2.5% | no clear change |
| American Indian and Alaska Native alone, not Hispanic | 0.0%±0.1 pts | 0.1% | – |
| Native Hawaiian and Other Pacific Islander alone, not Hispanic | 0.1%±0.1 pts | 0.0% | – |
| Two or more races, not Hispanic | 5.1%±0.5 pts | 4.3% | – |
| Some other race alone, not Hispanic | 0.2%±0.1 pts | 0.4% | – |
| Born outside the United States | 2.6%±0.4 pts | 5.2% | +0.6 pts |
| Speak a language other than English at home (age 5+) | 4.2%±0.6 pts | 8.0% | – |
| Civilian veterans (age 18+) | 8.8%±0.5 pts | 6.6% | – |
| With a disability | 17.0%±0.8 pts | 14.4% | – |
| No health insurance coverage | 6.6%±0.7 pts | 6.4% | no clear change |
| High school graduate or higher (age 25+) | 89.0%±1.0 pts | 91.8% | – |
| Bachelor's degree or higher (age 25+) | 20.2%±0.9 pts | 31.5% | +1.5 pts |
| Graduate or professional degree (age 25+) | 7.5%±0.5 pts | 12.2% | – |
| Moved from another state in the past year | 1.4%±0.3 pts | 1.6% | – |
Source: American Community Survey 2020-2024 5-year estimates, U.S. Census Bureau (released January 2026) (Data Profiles DP02, DP05) · Check it at data.census.gov
What do households in Clark County earn?
Half of Clark County's 55,975 households earn less than $63,132 a year (±$2,105), against $71,389 in Ohio. In 2015-2019 it was $62,609 in 2024 dollars; the margins of error cannot tell the two periods apart. 15.2% of residents live below the poverty line.
| Measure | Clark County | Ohio | Change since 2015-2019 |
|---|---|---|---|
| Median household income | $63,132±$2,105 | $71,389 | no clear change |
| Mean household income | $80,369±$1,881 | $96,990 | – |
| Per capita income | $33,791±$774 | $40,552 | no clear change |
| People below the poverty line | 15.2%±1.2 pts | 13.3% | no clear change |
| Children under 18 below the poverty line | 21.5%±3.0 pts | 17.8% | no clear change |
| Households receiving SNAP | 18.0%±1.1 pts | 12.5% | – |
| Households with a broadband subscription | 90.4%±0.9 pts | 90.1% | – |
Source: American Community Survey 2020-2024 5-year estimates, U.S. Census Bureau (released January 2026) (Data Profile DP03) · Check it at data.census.gov
What does housing cost in Clark County?
Owners occupy 69.4% of Clark County's occupied homes and renters 30.6%. The median owner-occupied home is valued at $169,900 by its owner (±$3,339). The median renter pays $872 a month including utilities, and 34.5% of renters pay 35% or more of their income on rent.
| Measure | Clark County | Ohio | Change since 2015-2019 |
|---|---|---|---|
| Median home value (owner-occupied) | $169,900±$3,339 | $214,800 | +$27,755 |
| Median gross rent | $872±$20 | $1,034 | −$50 |
| Renters paying 35% or more of income on rent | 34.5%±2.7 pts | 37.3% | no clear change |
| Median monthly owner costs, with a mortgage | $1,262±$28 | $1,517 | – |
| Owner-occupied homes | 69.4%±1.3 pts | 67.2% | +3.4 pts |
| Housing units | 61,126±92 | 5,292,391 | no clear change |
| Homeowner vacancy rate | 1.0%±0.5 pts | 0.8% | – |
| Rental vacancy rate | 2.5%±1.0 pts | 4.4% | – |
| Single-family detached homes | 74.7%±1.2 pts | 68.8% | – |
| Mobile homes | 3.6%±0.5 pts | 3.4% | – |
| Built 2020 or later | 0.4%±0.2 pts | 1.1% | – |
| Built 1939 or earlier | 24.2%±1.2 pts | 19.0% | – |
Source: American Community Survey 2020-2024 5-year estimates, U.S. Census Bureau (released January 2026) (Data Profile DP04) · Check it at data.census.gov
How many new homes is Clark County building?
Builders took permits for 387 new housing units across Clark County in 2025 (225 single-family), 2.9 per 1,000 residents.
Source: Building Permits Survey, annual county files 2019-2025, U.S. Census Bureau · Census Building Permits Survey
How do people in Clark County get to work?
78.5% of Clark County's workers drive alone and 9.6% work from home. The average trip to work takes 23.1 minutes. The unemployment rate in 2020-2024 averaged 6.7%.
| Measure | Clark County | Ohio | Change since 2015-2019 |
|---|---|---|---|
| In the labor force (age 16+) | 58.8%±0.9 pts | 63.1% | – |
| Unemployment rate | 6.7%±0.8 pts | 4.8% | no clear change |
| Drove alone to work | 78.5%±1.4 pts | 75.1% | – |
| Carpooled | 8.8%±1.0 pts | 7.5% | – |
| Public transportation | 0.3%±0.1 pts | 1.0% | – |
| Walked | 1.9%±0.4 pts | 2.0% | – |
| Worked from home | 9.6%±1.0 pts | 13.0% | +5.8 pts |
| Mean travel time to work | 23.1 min±0.7 | 23.4 min | no clear change |
Source: American Community Survey 2020-2024 5-year estimates, U.S. Census Bureau (released January 2026) (Data Profile DP03) · Check it at data.census.gov
What are Clark County's census tracts?
Clark County is divided into 45 census tracts. Among those with a reliable estimate, median household income runs from $21,453 (Tract 11.01) to $113,293 (Tract 26.05).
Source: American Community Survey 2020-2024 5-year estimates, U.S. Census Bureau (released January 2026) · Check it at data.census.gov
How does Clark County compare with Ohio's other counties?
| Measure | Rank |
|---|---|
| Population | 21st of 88 |
| Growth 2020-2025 | 54th of 88 |
| Residents per square mile | 17th of 88 |
| Median household income | 57th of 88 |
| Median home value | 52nd of 88 |
| Median gross rent | 40th of 88 |
| Poverty rate | 25th of 88 |
| Bachelor's degree or higher | 43rd of 88 |
| Median age | 46th of 88 |
Source: PlainCities ranks from the American Community Survey 2020-2024 5-year estimates, U.S. Census Bureau (released January 2026) and PEP Vintage 2025 · How ranks are computed
How these figures are made: methodology and release checks · reading a margin of error · every state · corrections
Not on this page: crime, weather and schools for Clark County are other agencies' records. Crime: the FBI's Crime Data Explorer · climate: NOAA's U.S. Climate Normals · schools: the National Center for Education Statistics' school search.