Clinton County, Ohio Population 2026
Updated April 2026 · US Census ACS 2023 5-Year Estimates · 59th-largest in Ohio
The population of Clinton County, Ohio is 42,014 as of the 2023 American Community Survey, making it the 59th-largest county in Ohio. The median household income is $68,125, the median home value is $192,800, and the median age is 41.0.
The population of Clinton County has grown 0.2% since 2010 (41,922 → 42,019), a +0.02% annualized rate.
42,014
Population
+0.02%
Annual growth
103
People / sq mi
$68,125
Median Income
$192,800
Median Home Value
Clinton County covers 409 sq mi of land at 102.8 people per square mile.
About Clinton County, OH
Clinton County is distinguished by its share of foreign-born residents, 16.6% of the population. With 42,014 residents, Clinton County is a county in Ohio.
The typical household here earns about $68,125, below the US median of $78,538. About 11.3% of residents live below the federal poverty level, below the national 12.4%. Median home value is $192,800, with typical rent around $893.
Roughly 20.1% of adults have a bachelor’s, below the national 35.0%. About 7.5% of the workforce is home-based, below the national 14.0%, and the average commute runs about 25 minutes each way.
Clinton County Population History (2010-2024)
The county of Clinton County had a population of 41,922 in 2010 and 42,019 in 2024, a 0.2% growth over 14 years. The peak was 42,130 in 2021. Average annual growth rate: 0.02%.
42,019
Population (2024)
41,922
Population (2010)
42,130
Peak (2021)
0.02%
Avg Annual Growth
| Year | Population |
|---|---|
| 2010 | 41,922 |
| 2011 | 41,919 |
| 2012 | 41,829 |
| 2013 | 41,879 |
| 2014 | 41,824 |
| 2015 | 41,864 |
| 2016 | 41,923 |
| 2017 | 42,035 |
| 2018 | 42,119 |
| 2019 | 42,002 |
| 2020 | 42,035 |
| 2021 | 42,130 |
| 2022 | 41,902 |
| 2023 | 41,972 |
| 2024 | 42,019 |
Race & Ethnicity
| White | 92.6% |
| Black or African American | 1.9% |
| Asian | 0.0% |
| Hispanic or Latino (any race) | 1.4% |
| Two or More Races | 0.0% |
Age & Sex
41.0
Median Age
50.4%
Female
49.6%
Male
18.1%
Age 65+
Age Distribution
Children (under 15): 18.8% · Seniors (65+): 18.1%
Income & Poverty
| Median household income | $68,125$-1,555 vs state |
| Mean household income | $84,570 |
| Per-capita income | $34,046 |
| Poverty rate | 11.3%+2.1% vs state |
| Unemployment rate | 2.9% |
| Employment-to-population | 59.3% |
Top Industries by Employment
The largest employment sector in Clinton County is professional & business services, accounting for 21.9% of workers.
How residents commute
0.3%
Drive alone
2.7%
Carpool
81.2%
Public transit
7.5%
Work from home
25.3 min
Avg commute
Housing
$192,800$-6,400 vs state
Median home value
$893
Median rent
70.5%
Homeownership rate
17,966
Total housing units
92.0%
Occupied
8.0%
Vacant
29.5%
Renter-occupied
Social & access
93.8%
With health insurance
92.9%
With broadband internet
16.6%
Foreign-born
9.8%
Veterans (18+)
16.5%
With a disability
97.5%
Speak language other than English at home
Education
91.6%
High School+
20.1%
Bachelor's+
Largest cities in Ohio
Other counties in Ohio
Part of Ohio
Metro areas in Ohio
County rankings
Frequently Asked Questions
Clinton County, Ohio has a population of 42,014 according to the US Census Bureau's 2023 American Community Survey 5-year estimates, making it the 59th-largest county in Ohio. Population density is 103 people per square mile.
The population of Clinton County has grown 0.2% since 2010 (41,922 → 42,019), a +0.02% annualized rate.
The median household income in Clinton County, Ohio is $68,125, with mean (average) household income of $84,570 and per-capita income of $34,046. 11.3% of residents live below the federal poverty level.
In Clinton County, the largest racial and ethnic groups are White (92.6%), Black or African American (1.9%), Hispanic or Latino (1.4%). Figures are from the US Census Bureau's 2023 ACS 5-year estimates and reflect self-reported responses.
The median age in Clinton County, Ohio is 41.0 years. Residents are 50.4% female and 49.6% male.
The median home value in Clinton County is $192,800 and median monthly rent is $893. 70.5% of occupied housing units are owner-occupied. The county has 17,966 total housing units, 8.0% of which are vacant.
The largest employment sector in Clinton County, Ohio is professional, scientific, and management services, employing 21.9% of workers. The unemployment rate is 2.9%.
Columbus is among the largest cities associated with Clinton County, Ohio, with a population of 906,480.
Clinton County, OH Climate
Clinton County, OH has an average annual temperature of 10.8°C (51°F) and receives about 1035 mm of precipitation per year. The warmest month is July and the coldest is January. Figures are 1970–2000 climate normals.
10.8°C
Avg Temp
1035
Precip (mm/yr)
Jul
Hottest Month
Jan
Coldest Month
| Month | Avg (°C/°F) | Precip |
|---|---|---|
| January | -3° / 27° | 71 mm |
| February | -1° / 31° | 68 mm |
| March | 5° / 40° | 86 mm |
| April | 10° / 51° | 104 mm |
| May | 16° / 61° | 120 mm |
| June | 21° / 70° | 92 mm |
| July | 23° / 73° | 111 mm |
| August | 22° / 71° | 91 mm |
| September | 19° / 65° | 78 mm |
| October | 12° / 54° | 60 mm |
| November | 6° / 43° | 79 mm |
| December | 0° / 33° | 75 mm |
1970–2000 normals from WorldClim 2.1 (~9 km grid). Precipitation can be less precise near mountains or coastlines, where rainfall varies sharply over short distances.
Best time to visit Clinton County, OH
The most comfortable months to visit Clinton County, OH are typically June, August and September, when temperatures are mildest and rainfall is relatively low. The hottest month is July (around 29°C high). The coldest is January (near -7°C low). May is usually the wettest month.
Where to stay near Clinton County
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Data from the American Community Survey (ACS) 5-Year estimates.
Source: U.S. Census Bureau ACS, 2026.