Adams County, Iowa
Located in Iowa, Adams County has a population of 3,622 residents and a median age of 46.3 years, making it the #2,993 most populous county out of 3,222 nationwide. In terms of economic indicators, the county has a poverty rate of 9.1%. The median home value is $131,600, and the median household income is $71,875, which is 4% below the national median.
Demographics
Adams County has a population of 3,622, making it the #2,993 most populous county in the US. The median age is 46.3 years, which is 19.0% 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 Adams County is $71,875, ranking #1,058 out of 3,222 counties — 4.4% below the national median. The poverty rate is 9.1% and unemployment stands at 3.9%.
Median Household Income Trend
Rankings →Income Distribution
Industry of Employment
Occupation
Housing
The median home value in Adams County is $131,600 (-53.3% vs national). Renters pay a median of $893/mo and the homeownership rate is 77.1%.
Median Home Value Trend
Rankings →Household Type
Education
In Adams County, 27.0% of adults age 25+ hold a bachelor's degree or higher, which is 19.9% below the national average, ranking #1,015 out of 3,222 counties.
Bachelor's Degree or Higher Trend
Rankings →Health & Wellbeing
Life expectancy in Adams County is 77.6 years. 15.3% of adults report poor or fair health and 5.1% lack health insurance. Data from County Health Rankings (2025).
Life Expectancy Trend
Substance Use
17.8% of adults in Adams County smoke , 38.6% are obese , and 25.2% report excessive drinking.
Adult Smoking Trend
Safety
.
Families & Children
15.3% of children in Adams County live in poverty . The teen birth rate is 21.8 per 1,000 females age 15–19.
Teen Birth Rate Trend
Civic & Transportation
Voter turnout in Adams County is 75.1%. The mean commute time is 21.1 min, which is 23.6% below the national average.
Voter Turnout Trend
Mean Commute Time Trend
Rankings →Elections
In the 2024 presidential election, Adams County voted Republican with a margin of 44.2%. The vote was 27% Dem / 71.2% Rep. Compared to 2020, the margin shifted 0.7 toward Republicans .
Vote Share Over Time
About Adams County, Iowa
Adams County, Iowa has a total population of 3,622, making it the 2,993rd most populous county in the United States. The median age in Adams County is 46.3 years, which is 19.0% above the national median of 38.9 years.
The median household income in Adams County is $71,875, which ranks #1,058 of 3,222 counties nationwide. This is 4.4% below the national median of $75,149. The poverty rate is 9.1%, lower than the national rate of 12.6%. The unemployment rate stands at 3.9%.
The median home value in Adams County is $131,600, 53.3% below the national median. Renters in Adams County pay a median gross rent of $893 per month. The homeownership rate is 77.1%, compared to the national rate of 64.4%.
In Adams County, 27.0% of residents aged 25 and older hold a bachelor's degree or higher, 19.9% below the national average of 33.7%. Health insurance coverage stands at 96.7% of the population. The average commute time for workers is 21.1 min.
Adams County is a diverse community. The largest racial or ethnic group is White (non-Hispanic) at 94.5% of the population, followed by Two or More Races (3.2%) and Hispanic or Latino (1.7%).
All data for Adams 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.