Clermont County, Ohio Population 2026
Updated April 2026 · US Census ACS 2023 5-Year Estimates · 14th-largest in Ohio
The population of Clermont County, Ohio is 209,862 as of the 2023 American Community Survey, making it the 14th-largest county in Ohio. The median household income is $83,178, the median home value is $245,600, and the median age is 40.8.
The population of Clermont County has grown 8.4% since 2010 (197,613 → 214,123), a +0.57% annualized rate.
209,862
Population
+0.57%
Annual growth
464
People / sq mi
$83,178
Median Income
$245,600
Median Home Value
Clermont County covers 453 sq mi of land at 463.7 people per square mile.
About Clermont County, OH
Clermont County stands apart on settlement density — it is among the most densely settled of US counties, at roughly 464 people per square mile. With 209,862 residents, Clermont County is a county in Ohio. It ranks #14 among counties in Ohio by population.
Households take in a median $83,178, comfortably above the US median of $78,538. Only 5.9% of residents live in poverty, below the national 12.4%. The median home value is $245,600, with typical rent around $1,040.
About 31.4% of adults 25 and older have a bachelor’s degree, below the 35.0% national figure. About 12.3% of workers primarily work from home, below the national 14.0%, and the average commute runs about 28 minutes each way.
That density explains much of the rest of the profile in Clermont County: denser places lean toward renting, shorter commutes by transit, and a younger working-age mix.
Clermont County Population History (2010-2024)
The county of Clermont County had a population of 197,613 in 2010 and 214,123 in 2024, a 8.4% growth over 14 years. The peak was 214,123 in 2024. Average annual growth rate: 0.57%.
214,123
Population (2024)
197,613
Population (2010)
214,123
Peak (2024)
0.57%
Avg Annual Growth
| Year | Population |
|---|---|
| 2010 | 197,613 |
| 2011 | 198,886 |
| 2012 | 199,526 |
| 2013 | 200,504 |
| 2014 | 201,516 |
| 2015 | 202,077 |
| 2016 | 203,332 |
| 2017 | 204,456 |
| 2018 | 205,803 |
| 2019 | 206,851 |
| 2020 | 208,755 |
| 2021 | 209,919 |
| 2022 | 210,906 |
| 2023 | 212,202 |
| 2024 | 214,123 |
Race & Ethnicity
| White | 92.4% |
| Black or African American | 1.5% |
| Asian | 0.0% |
| Hispanic or Latino (any race) | 0.8% |
| Two or More Races | 0.0% |
Age & Sex
40.8
Median Age
50.4%
Female
49.6%
Male
17.8%
Age 65+
Age Distribution
Children (under 15): 18.2% · Seniors (65+): 17.8%
Income & Poverty
| Median household income | $83,178+$13,498 vs state |
| Mean household income | $107,049 |
| Per-capita income | $43,473 |
| Poverty rate | 5.9%-3.3% vs state |
| Unemployment rate | 2.7% |
| Employment-to-population | 62.3% |
Top Industries by Employment
The largest employment sector in Clermont County is professional & business services, accounting for 20.8% of workers.
How residents commute
0.2%
Drive alone
0.7%
Carpool
78.4%
Public transit
12.3%
Work from home
28.1 min
Avg commute
Housing
$245,600+$46,400 vs state
Median home value
$1,040
Median rent
73.4%
Homeownership rate
87,534
Total housing units
96.3%
Occupied
3.7%
Vacant
26.6%
Renter-occupied
Social & access
94.3%
With health insurance
95.2%
With broadband internet
23.4%
Foreign-born
7.3%
Veterans (18+)
14.3%
With a disability
96.9%
Speak language other than English at home
Education
91.9%
High School+
31.4%
Bachelor's+
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Other counties in Ohio
Part of Ohio
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County rankings
Frequently Asked Questions
Clermont County, Ohio has a population of 209,862 according to the US Census Bureau's 2023 American Community Survey 5-year estimates, making it the 14th-largest county in Ohio. Population density is 464 people per square mile.
The population of Clermont County has grown 8.4% since 2010 (197,613 → 214,123), a +0.57% annualized rate.
The median household income in Clermont County, Ohio is $83,178, with mean (average) household income of $107,049 and per-capita income of $43,473. 5.9% of residents live below the federal poverty level.
In Clermont County, the largest racial and ethnic groups are White (92.4%), Black or African American (1.5%), Hispanic or Latino (0.8%). Figures are from the US Census Bureau's 2023 ACS 5-year estimates and reflect self-reported responses.
The median age in Clermont County, Ohio is 40.8 years. Residents are 50.4% female and 49.6% male.
The median home value in Clermont County is $245,600 and median monthly rent is $1,040. 73.4% of occupied housing units are owner-occupied. The county has 87,534 total housing units, 3.7% of which are vacant.
The largest employment sector in Clermont County, Ohio is professional, scientific, and management services, employing 20.8% of workers. The unemployment rate is 2.7%.
Columbus is among the largest cities associated with Clermont County, Ohio, with a population of 906,480.
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Statewide data for Ohio
Population, race, income, age, and trends across Ohio
Data from the American Community Survey (ACS) 5-Year estimates.
Source: U.S. Census Bureau ACS, 2026.