Harrison County, Iowa
Located in Iowa, Harrison County has a population of 14,632 residents and a median age of 42.1 years, making it the #2,179 most populous county out of 3,222 nationwide. In terms of economic indicators, the county has a poverty rate of 7.1%. The median home value is $176,000, and the median household income is $79,535, which is 6% above the national median.
Demographics
Harrison County has a population of 14,632, making it the #2,179 most populous county in the US. The median age is 42.1 years, which is 8.2% above the national median.
Population Trend
Rankings →Year-over-Year Population Growth
Age & Sex Distribution
Race & Ethnicity
Nativity
Geographic Mobility (Past Year)
Economy
The median household income in Harrison County is $79,535, ranking #606 out of 3,222 counties — 5.8% above the national median. The poverty rate is 7.1% and unemployment stands at 2.3%.
Median Household Income Trend
Rankings →Income Distribution
Industry of Employment
Occupation
Housing
The median home value in Harrison County is $176,000 (-37.6% vs national). Renters pay a median of $849/mo and the homeownership rate is 77.1%.
Median Home Value Trend
Rankings →Household Type
Education
In Harrison County, 22.0% of adults age 25+ hold a bachelor's degree or higher, which is 34.7% below the national average, ranking #1,654 out of 3,222 counties.
Bachelor's Degree or Higher Trend
Rankings →Health & Wellbeing
Life expectancy in Harrison County is 76.3 years. 17.6% of adults report poor or fair health and 5.8% lack health insurance. Data from County Health Rankings (2025).
Life Expectancy Trend
Substance Use
20.5% of adults in Harrison County smoke , 40.1% are obese , and 24.9% report excessive drinking.
Adult Smoking Trend
Safety
The suicide rate is 19.0 per 100,000. Motor vehicle deaths occur at a rate of 16.0 per 100,000.
Suicide Rate Trend
Families & Children
12.6% of children in Harrison County live in poverty . The teen birth rate is 10.7 per 1,000 females age 15–19.
Teen Birth Rate Trend
Civic & Transportation
Voter turnout in Harrison County is 75.3%. The mean commute time is 29.0 min, which is 5.2% above the national average.
Voter Turnout Trend
Mean Commute Time Trend
Rankings →Elections
In the 2024 presidential election, Harrison County voted Republican with a margin of 41.8%. The vote was 28.3% Dem / 70.1% Rep. Compared to 2020, the margin shifted 3.4 toward Republicans .
Vote Share Over Time
About Harrison County, Iowa
Harrison County, Iowa has a total population of 14,632, making it the 2,179th most populous county in the United States. The median age in Harrison County is 42.1 years, which is 8.2% above the national median of 38.9 years.
The median household income in Harrison County is $79,535, which ranks #606 of 3,222 counties nationwide. This is 5.8% above the national median of $75,149. The poverty rate is 7.1%, lower than the national rate of 12.6%. The unemployment rate stands at 2.3%.
The median home value in Harrison County is $176,000, 37.6% below the national median. Renters in Harrison County pay a median gross rent of $849 per month. The homeownership rate is 77.1%, compared to the national rate of 64.4%.
In Harrison County, 22.0% of residents aged 25 and older hold a bachelor's degree or higher, 34.7% below the national average of 33.7%. Health insurance coverage stands at 95.3% of the population. The average commute time for workers is 29.0 min.
Harrison County is a diverse community. The largest racial or ethnic group is White (non-Hispanic) at 94.4% of the population, followed by Two or More Races (2.7%) and Hispanic or Latino (2.2%).
All data for Harrison County, Iowa comes from the U.S. Census Bureau's American Community Survey (ACS) 5-Year Estimates. These figures are estimates based on survey sampling and are subject to margin of error. For the most detailed and up-to-date data, visit the Census Bureau's official data portal.