Harrison County, Iowa Population 2026
Updated April 2026 · US Census ACS 2023 5-Year Estimates · 52nd-largest in Iowa
The population of Harrison County, Iowa is 14,645 as of the 2023 American Community Survey, making it the 52nd-largest county in Iowa. The median household income is $77,027, the median home value is $165,300, and the median age is 41.9.
The population of Harrison County has declined 1.9% since 2010 (14,908 → 14,626), a -0.14% annualized rate.
14,645
Population
-0.14%
Annual growth
21
People / sq mi
$77,027
Median Income
$165,300
Median Home Value
Harrison County covers 697 sq mi of land at 21.0 people per square mile.
About Harrison County, IA
Harrison County is a county in Iowa with a population of 14,645. It ranks #52 among counties in Iowa by population. The median age is 41.9, older than the national median. The population is 50.9% male and 49.1% female.
The median household income in Harrison County is $77,027, near the US median of $74,580. 4.7% of residents live below the federal poverty level. Home values sit at a median of $165,300, with monthly rent averaging $854. The homeownership rate of 76.9% is higher than the national rate of 64.8%.
Educational attainment in Harrison County reflects 21.2% of adults 25 and older holding a bachelor's degree or higher, below the national average of 34.3%. Roughly 8.6% of workers primarily work from home, below the national work-from-home rate of 14.2%. The average commute is 26.2 minutes each way.
Harrison County Population History (2010-2024)
The county of Harrison County had a population of 14,908 in 2010 and 14,626 in 2024, a -1.9% growth over 14 years. The peak was 14,908 in 2010. Average annual growth rate: -0.13%.
14,626
Population (2024)
14,908
Population (2010)
14,908
Peak (2010)
-0.13%
Avg Annual Growth
| Year | Population |
|---|---|
| 2010 | 14,908 |
| 2011 | 14,764 |
| 2012 | 14,474 |
| 2013 | 14,359 |
| 2014 | 14,268 |
| 2015 | 14,145 |
| 2016 | 14,051 |
| 2017 | 14,116 |
| 2018 | 14,086 |
| 2019 | 14,034 |
| 2020 | 14,567 |
| 2021 | 14,692 |
| 2022 | 14,635 |
| 2023 | 14,638 |
| 2024 | 14,626 |
Race & Ethnicity
| White | 96.2% |
| Black or African American | 0.1% |
| Asian | 0.0% |
| Hispanic or Latino (any race) | 0.7% |
| Two or More Races | 0.0% |
Age & Sex
41.9
Median Age
49.1%
Female
50.9%
Male
19.7%
Age 65+
Age Distribution
Children (under 15): 19.0% · Seniors (65+): 19.7%
Income & Poverty
| Median household income | $77,027+$3,880 vs state |
| Mean household income | $95,657 |
| Per-capita income | $39,369 |
| Poverty rate | 4.7%-2.2% vs state |
| Unemployment rate | 1.8% |
| Employment-to-population | 63.6% |
Top Industries by Employment
The largest employment sector in Harrison County is professional & business services, accounting for 27.8% of workers.
How residents commute
0.4%
Drive alone
3.0%
Carpool
81.4%
Public transit
8.6%
Work from home
26.2 min
Avg commute
Housing
$165,300$-30,600 vs state
Median home value
$854
Median rent
76.9%
Homeownership rate
6,679
Total housing units
89.9%
Occupied
10.1%
Vacant
23.1%
Renter-occupied
Social & access
95.8%
With health insurance
93.5%
With broadband internet
49.0%
Foreign-born
9.3%
Veterans (18+)
12.2%
With a disability
98.9%
Speak language other than English at home
Education
93.5%
High School+
21.2%
Bachelor's+
Largest cities in Iowa
Other counties in Iowa
Part of Iowa
Metro areas in Iowa
County rankings
Frequently Asked Questions
Harrison County, Iowa has a population of 14,645 according to the US Census Bureau's 2023 American Community Survey 5-year estimates, making it the 52nd-largest county in Iowa. Population density is 21 people per square mile.
The population of Harrison County has declined 1.9% since 2010 (14,908 → 14,626), a -0.14% annualized rate.
The median household income in Harrison County, Iowa is $77,027, with mean (average) household income of $95,657 and per-capita income of $39,369. 4.7% of residents live below the federal poverty level.
In Harrison County, the largest racial and ethnic groups are White (96.2%), Hispanic or Latino (0.7%), Black or African American (0.1%). Figures are from the US Census Bureau's 2023 ACS 5-year estimates and reflect self-reported responses.
The median age in Harrison County, Iowa is 41.9 years. Residents are 49.1% female and 50.9% male.
The median home value in Harrison County is $165,300 and median monthly rent is $854. 76.9% of occupied housing units are owner-occupied. The county has 6,679 total housing units, 10.1% of which are vacant.
The largest employment sector in Harrison County, Iowa is professional, scientific, and management services, employing 27.8% of workers. The unemployment rate is 1.8%.
Des Moines is among the largest cities associated with Harrison 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.