Population
135,340
2025
−0.4% since 2020
Source: U.S. Census Bureau, Population Estimates Program (Vintage 2025), 2025. Resident population, July 1 estimate.
Clark County lost 830 residents between 2024 and 2025 (−0.6%).
Clark County had an estimated 135,340 residents in 2025, down 0.4% (548 fewer people) since 2020. That is slower than Ohio as a whole (+0.9%), and the 52nd fastest growth of 88 counties in Ohio.
Data as of 2025 · updated
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In the Clark County report
One-time $99 PDF: everything on this page for Clark County plus 15 more figures, ranked against Ohio and the U.S. Three of the 15, free:
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135,340
2025
−0.4% since 2020
Source: U.S. Census Bureau, Population Estimates Program (Vintage 2025), 2025. Resident population, July 1 estimate.
−908
2025
−6.7 per 1,000 residents
−810 in total, 2021–2025
Source: U.S. Census Bureau, Population Estimates Program (Vintage 2025), 2025. People moving in from other U.S. counties minus people moving out.
5.3%
2025
+0.9 pts since 2019
Source: U.S. Bureau of Labor Statistics, Local Area Unemployment Statistics, 2025. Annual average unemployment rate.
387
2025
+94.5% since 2021
2.9 per 1,000 residents
Source: U.S. Census Bureau, Building Permits Survey, 2025. Housing units authorized by building permits in the year.
$63,132
2020–24
+22.6% since 2016–20
Source: U.S. Census Bureau, American Community Survey 5-year estimates, 2020–24. American Community Survey 5-year estimate.
42,831
2023
+7.3% since 2018
Source: U.S. Census Bureau, County Business Patterns, 2023. Paid employees of private employers in mid-March (County Business Patterns).
Net domestic migration was negative in 2025: 908 more people moved out to other U.S. counties than moved in. Counting international arrivals, net migration was about −627.
Private employers had 42,831 paid employees in mid-March 2023, +7.3% since 2018 (County Business Patterns).
Unemployment averaged 5.3% in 2025, 0.9 points higher than in 2019 (before the pandemic).
Builders were authorized to start 387 new homes in 2025, or 2.9 per 1,000 residents.
Median household income was $63,132 in the 2020–24 American Community Survey, +22.6% since 2016–20.
Across the 3,107 U.S. counties with a comparable estimate, its population growth ranks 2,014th.
Part of the Springfield, OH metro area.
Email me when Clark County gets new Census numbers: population, building permits, jobs and income. About 4 emails a year, one click to stop.
| Year | Population | Change |
|---|---|---|
| 2025 | 135,340 | −830 |
| 2024 | 136,170 | +828 |
| 2023 | 135,342 | +651 |
| 2022 | 134,691 | −709 |
| 2021 | 135,400 | −488 |
| 2020 | 135,888 | – |
Census Bureau population estimates, July 1 of each year.
Clark County lost 548 people since 2020; the biggest drag was natural change (−2,049).
| Component | 2025 | 2020–25 | Share |
|---|---|---|---|
| Natural changebirths minus deaths | −195 | −2,049 | |
| International migrationfrom and to other countries | +281 | +2,319 | |
| Domestic migrationfrom and to other U.S. counties | −908 | −810 | |
| Census adjustmentbalancing residual | −8 | −8 | |
| Total change | −830 | −548 |
Census Bureau population estimates, components of change, each year July 1 to June 30. The components add up to the change in the estimate; the Census adjustment is the small balancing figure the Bureau publishes.
| Measure | In Ohio | Among U.S. counties |
|---|---|---|
| Population growth | 52nd of 88 | 2,014th of 3,107 |
| Net domestic migration per 1,000 residents | 88th of 88 | 2,705th of 3,108 |
| Private-sector job growth | 19th of 88 | 942nd of 3,092 |
| Median household income | 57th of 88 | 1,758th of 3,107 |
| Lowest unemployment rate | 57th of 88 | 2,678th of 3,108 |
| New homes permitted per 1,000 residents | 17th of 88 | 1,164th of 3,005 |
1st = highest (lowest for unemployment). Counties are ranked only against others with a figure for the same period.
The County Growth and Demographics Report for Clark County, OH as a PDF, from federal data: population and migration, housing and rents, permits, private employers and jobs, unemployment, ranks in the state and the country, and neighbouring counties, with a source next to every number. It has everything on this page plus 15 more figures for Clark County, ranked against Ohio and the U.S. Pay once, no subscription.
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Clark County lost population faster than all 5 of its neighbouring counties (−0.4%, 2020–25).
Its median household income ($63,132, 2020–24) is lower than in all 5 of its neighbouring counties.
| County | Population2025 | Population change2020–25 | Net domestic migration per 1,000 residents2025 | Homes permitted per 1,000 residents2025 | Median household income2020–24 |
|---|---|---|---|---|---|
| Clark County, OH This county | 135,340 | −0.4% | −6.7 | 2.9 | $63,132 |
| Greene County, OH | 174,322 | +3.7% | 10.7 | 3.3 | $87,309 |
| Champaign County, OH | 38,820 | +0.2% | 4.3 | 1.2 | $75,556 |
| Madison County, OH | 46,985 | +7.1% | 26.0 | 8.9 | $87,045 |
| Miami County, OH | 112,634 | +3.4% | 6.7 | 3.0 | $76,817 |
| Montgomery County, OH | 539,598 | +0.5% | 3.1 | 2.0 | $66,139 |
Census Bureau population estimates and building permits, American Community Survey 5-year income. Rates per 1,000 residents. – means no figure, or a base too small for a change or rate (it would swing on a few people). A figure from another period shows its year and is left out of the comparison.
No. Its population fell 0.4% between 2020 and 2025, about 548 fewer people (Census Bureau population estimates). Most recently, between 2024 and 2025 it lost 830 residents (−0.6%). Ohio as a whole changed +0.9% over the same years. That ranks 52nd of 88 counties in Ohio for population growth.
Net domestic migration was about −908 in 2025: about 908 more people moved out to other U.S. counties than moved in (Census Bureau estimate). Counting international arrivals, net migration was about −627.
It averaged 5.3% in 2025 (BLS Local Area Unemployment Statistics, annual average).
About 135,340 people, according to the U.S. Census Bureau's population estimate for July 1, 2025.
Private employers there had 42,831 paid employees in mid-March 2023, +7.3% since 2018 (Census Bureau County Business Patterns; government jobs and the self-employed are not counted).
Map, parcel and listing layers cover North and South Carolina only for now. This page and the other Ohio county pages carry the public federal growth figures.
Email me when Clark County gets new Census numbers: population, building permits, jobs and income. About 4 emails a year, one click to stop.
Each number shows its own period. Changes compare the latest period with five years earlier (or the earliest period available). Beacon CRE last refreshed these figures on 2026-11-05. Figures come from public federal statistics and are informational only, not investment advice. Check the source before relying on a number. Methodology: how we compute every number. More on every layer: data sources and licences.
Jobs outside North and South Carolina use County Business Patterns (paid private-sector employees in mid-March); wages and government jobs are not included.