Clarke County, Iowa Population 2026
Updated April 2026 · US Census ACS 2023 5-Year Estimates · 77th-largest in Iowa
The population of Clarke County, Iowa is 9,690 as of the 2023 American Community Survey, making it the 77th-largest county in Iowa. The median household income is $66,821, the median home value is $160,200, and the median age is 38.4.
The population of Clarke County has grown 2.2% since 2010 (9,321 → 9,524), a +0.15% annualized rate.
9,690
Population
+0.15%
Annual growth
22
People / sq mi
$66,821
Median Income
$160,200
Median Home Value
Clarke County covers 431 sq mi of land at 22.5 people per square mile.
About Clarke County, IA
Clarke County is a county in Iowa with a population of 9,690. It ranks #77 among counties in Iowa by population. The median age is 38.4, in line with the national median. The population is 51.4% male and 48.6% female.
The median household income in Clarke County is $66,821, below the US median of $74,580. 8.3% of residents live below the federal poverty level. Home values sit at a median of $160,200, with monthly rent averaging $836. The homeownership rate of 69.5% is higher than the national rate of 64.8%.
Educational attainment in Clarke County reflects 16.0% of adults 25 and older holding a bachelor's degree or higher, below the national average of 34.3%. Roughly 8.0% of workers primarily work from home, below the national work-from-home rate of 14.2%. The average commute is 23.8 minutes each way.
Clarke County Population History (2010-2024)
The county of Clarke County had a population of 9,321 in 2010 and 9,524 in 2024, a 2.2% growth over 14 years. The peak was 9,751 in 2021. Average annual growth rate: 0.16%.
9,524
Population (2024)
9,321
Population (2010)
9,751
Peak (2021)
0.16%
Avg Annual Growth
| Year | Population |
|---|---|
| 2010 | 9,321 |
| 2011 | 9,318 |
| 2012 | 9,339 |
| 2013 | 9,244 |
| 2014 | 9,192 |
| 2015 | 9,213 |
| 2016 | 9,293 |
| 2017 | 9,395 |
| 2018 | 9,489 |
| 2019 | 9,382 |
| 2020 | 9,730 |
| 2021 | 9,751 |
| 2022 | 9,676 |
| 2023 | 9,631 |
| 2024 | 9,524 |
Race & Ethnicity
| White | 85.9% |
| Black or African American | 0.0% |
| Asian | 0.0% |
| Hispanic or Latino (any race) | 2.3% |
| Two or More Races | 0.0% |
Age & Sex
38.4
Median Age
48.6%
Female
51.4%
Male
19.7%
Age 65+
Age Distribution
Children (under 15): 20.9% · Seniors (65+): 19.7%
Income & Poverty
| Median household income | $66,821$-6,326 vs state |
| Mean household income | $85,744 |
| Per-capita income | $35,360 |
| Poverty rate | 8.3%+1.4% vs state |
| Unemployment rate | 2.5% |
| Employment-to-population | 58.9% |
Top Industries by Employment
The largest employment sector in Clarke County is professional & business services, accounting for 23.3% of workers.
How residents commute
0.0%
Drive alone
2.1%
Carpool
79.7%
Public transit
8.0%
Work from home
23.8 min
Avg commute
Housing
$160,200$-35,700 vs state
Median home value
$836
Median rent
69.5%
Homeownership rate
4,401
Total housing units
90.9%
Occupied
9.1%
Vacant
30.5%
Renter-occupied
Social & access
94.7%
With health insurance
90.7%
With broadband internet
18.1%
Foreign-born
7.2%
Veterans (18+)
18.4%
With a disability
86.9%
Speak language other than English at home
Education
86.1%
High School+
16.0%
Bachelor's+
Largest cities in Iowa
Other counties in Iowa
Part of Iowa
Metro areas in Iowa
County rankings
Frequently Asked Questions
Clarke County, Iowa has a population of 9,690 according to the US Census Bureau's 2023 American Community Survey 5-year estimates, making it the 77th-largest county in Iowa. Population density is 22 people per square mile.
The population of Clarke County has grown 2.2% since 2010 (9,321 → 9,524), a +0.15% annualized rate.
The median household income in Clarke County, Iowa is $66,821, with mean (average) household income of $85,744 and per-capita income of $35,360. 8.3% of residents live below the federal poverty level.
In Clarke County, the largest racial and ethnic groups are White (85.9%), Hispanic or Latino (2.3%). Figures are from the US Census Bureau's 2023 ACS 5-year estimates and reflect self-reported responses.
The median age in Clarke County, Iowa is 38.4 years. Residents are 48.6% female and 51.4% male.
The median home value in Clarke County is $160,200 and median monthly rent is $836. 69.5% of occupied housing units are owner-occupied. The county has 4,401 total housing units, 9.1% of which are vacant.
The largest employment sector in Clarke County, Iowa is professional, scientific, and management services, employing 23.3% of workers. The unemployment rate is 2.5%.
Des Moines is among the largest cities associated with Clarke County, Iowa, with a population of 212,464.
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Statewide data for Iowa
Population, race, income, age, and trends across Iowa
Data from the American Community Survey (ACS) 5-Year estimates.
Source: U.S. Census Bureau ACS, 2026.