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.

Clarke County within Iowa · Source: US Census TIGER/Line via us-atlas

9,690

Population

+0.15%

Annual growth

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

Educational attainment is the headline number in Clarke County: 16.0% of adults 25 and older have a four-year degree. Clarke County is a county in Iowa with a population of 9,690.

The typical household here earns about $66,821, below the US median of $78,538. The poverty rate is 8.3%, below the national 12.4%. The typical home is valued at $160,200, with typical rent around $836.

Degree attainment is on the lower side for US counties: 16.0% of adults hold a bachelor’s degree, below the national 35.0%. About 8.0% of the workforce is home-based, below the national 14.0%, and the average commute runs about 24 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%.

Clarke County population, 2010–2024 · Source: U.S. Census Bureau — decennial census & Population Estimates

9,524

Population (2024)

9,321

Population (2010)

9,751

Peak (2021)

0.16%

Avg Annual Growth

Year	Population	Change	Annual %	Source
2010	9,321	-	-	estimate
2011	9,318	-3	-0.03%	estimate
2012	9,339	+21	+0.23%	estimate
2013	9,244	-95	-1.02%	estimate
2014	9,192	-52	-0.56%	estimate
2015	9,213	+21	+0.23%	estimate
2016	9,293	+80	+0.87%	estimate
2017	9,395	+102	+1.10%	estimate
2018	9,489	+94	+1.00%	estimate
2019	9,382	-107	-1.13%	estimate
2020	9,730	+348	+3.71%	estimate
2021	9,751	+21	+0.22%	estimate
2022	9,676	-75	-0.77%	estimate
2023	9,631	-45	-0.47%	estimate
2024	9,524	-107	-1.11%	estimate

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

Under 5

7.0%

5–9

6.8%

10–14

7.1%

15–19

7.5%

20–24

5.4%

25–34

10.5%

35–44

11.3%

45–54

12.0%

55–59

6.3%

60–64

6.4%

65–74

12.1%

75–84

4.8%

85+

2.8%

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

Professional & business services

23.3%

Manufacturing

19.8%

Construction

9.8%

Information

8.0%

Education & health care

6.3%

Retail trade

6.3%

Public administration

5.6%

Agriculture

4.1%

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

Des Moines (212,464)Cedar Rapids (136,859)Davenport (101,083)Sioux City (85,651)Iowa City (75,264)Ankeny (70,542)West Des Moines (69,893)Waterloo (66,947)Ames (66,112)Council Bluffs (62,564)All Iowa cities →

Other counties in Iowa

Polk County (497,441)Linn County (229,463)Scott County (174,302)Johnson County (154,881)Black Hawk County (130,693)Woodbury County (105,760)Dallas County (104,136)Dubuque County (98,948)Story County (98,592)Pottawattamie County (93,407)All Iowa counties →

Part of Iowa

Iowa demographic profile All Iowa data →

Metro areas in Iowa

Omaha (972,840)Des Moines (720,331)Davenport (381,864)Cedar Rapids (275,960)Iowa City (177,420)Waterloo (168,163)Sioux City (144,007)Ames (125,261)All US metros →

County rankings

US Counties by Population Richest US Counties by Median Household Income Expensive US Counties by Home Value Educated US Counties Counties With Highest Poverty Rates Youngest US Counties by Median Age Oldest US Counties by Median Age Cheapest US Counties by Median Home Value Racially Diverse US Counties Counties With Largest Hispanic Population All 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.