Winnebago County, Iowa Demographics
Population trends, housing costs, income, commuting, and health, all on one page.
Winnebago County, IA Population Density Map and Area Scores
Area Score
Health, income and education, each graded from F to A+. Explore interactive maps for deeper analysis.
-
B
Health Around averageHealthier than 78% of counties in Iowa
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B
Income Around average
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D
Education Well below average
Source: Map AI Methodology
Population: density and quick facts
| Metric | Winnebago County | Iowa Avg | U.S. Average |
|---|---|---|---|
| Population | 10,583 | 3,204,793 | 337,468,954 |
| Population density (per sq mi) | 26.4 | 57.0 | 86.4 |
| Population growth (%/yr) | 0.01% | 0.41% | 0.59% |
| Median age | 43.2 | 36.8 | 37.3 |
| Households | 4,641 | 1,308,457 | 130,235,071 |
Population in Winnebago County declined by 2.3% from 2009 to 2024, reaching 10,583 in 2024.
Population Growth 2009–2024
Race & Ethnicity
Age & Sex
The largest generation in Winnebago County is Gen Z, aged 13–28, at 20.9% of residents. That is 1.4 points below Iowa as a whole.
- Gen Z 13–28 2,208 20.9% -1.4 pts
- Millennials 29–44 1,861 17.6% -2.9 pts
- Gen X 45–60 2,125 20.1% +1.2 pts
- Boomers 61–79 2,099 19.8% +2.2 pts
Residents by birth cohort, from the 2025 age distribution. The right-hand figure is how far each cohort's share sits above or below Iowa, in percentage points. Children younger than Gen Z and the generations before the Boomers are counted in the population but not shown here, so these shares do not add up to 100%.
Male and female share
Women are 50.3% of the people living in Winnebago County and men 49.7%.
- Women 50.3% Iowa 50.0%
- Men 49.7% Iowa 50.0%
How many residents match a customer profile?
Residents matching this profile
100% of everyone living in Winnebago County
Pick an age range and a women/men split and the figure above answers with how many residents that profile reaches.
Economy
Winnebago County has a the economy index of B, which means it is quite prosperous.
| Metric | Winnebago County | Iowa Avg | U.S. Average |
|---|---|---|---|
| Median household income | $67,930 | $75,133 | $80,455 |
| Income growth (%/yr) | 4.16% | 3.99% | 4.80% |
| Unemployment rate | 3.0% | 3.6% | 5.2% |
The median household income in Winnebago County is about 10% lower than in Iowa.
Housing
| Metric | Winnebago County | Iowa Avg | U.S. Average |
|---|---|---|---|
| Median home price | $134,868 | $153,425 | $248,835 |
| Median rent | $717 | $971 | $1,407 |
| Homeownership rate | 70.6% | 71.7% | 65.2% |
The median home price in Winnebago County is about 15.7 years' worth of rent — buying at the median price costs roughly as much as paying the median rent of $717 per month for that long.
Commute Time & Mobility
Commuters in Winnebago County spend about 22 minutes on the road round trip each working day. Over a typical 250-day work year, that adds up to roughly 91 hours, about 3.8 full days, spent commuting.
| Metric | Winnebago County | Iowa Avg | U.S. Average |
|---|---|---|---|
| One-way commute (min) | 11.0 | 17.0 | 22.4 |
| Round-trip commute (min) | 22.0 | 33.9 | 44.8 |
| Yearly time spent (hours) | 91 | 141 | 187 |
| Estimated yearly cost | $2,835 | $4,382 | $5,790 |
| Work from home | 6.5% | 11.3% | 15.0% |
| Highway traffic (vehicles/day) | 6,015 | 4,993 | 8,813 |
| Local road traffic (vehicles/day) | 602 | 606 | 1,355 |
Fastest commutes among counties in
Iowa:
Sioux County (10.1 min), Union County (10.4 min), Cass County (10.6 min).
Slowest:
Monroe County (30.4 min), Madison County (30.1 min), Mills County (26.7 min).
The average commute time in Winnebago County is 11 minutes, shorter than the 17 minutes in Iowa.
Estimated yearly cost applies a single national wage rule of thumb (U.S. Bureau of Labor Statistics average hourly earnings), not a measurement of wages in this area. Traffic volume figures come from proprietary Ticon and TrafficZoom data.
Education & Households
Winnebago County has a education index of D, which means it is barely educated.
| Metric | Winnebago County | Iowa Avg | U.S. Average |
|---|---|---|---|
| Bachelor's degree or higher | 23.5% | 27.9% | 31.6% |
| Average household size | 2.16 | 2.37 | 2.53 |
Highest education index among counties in
Iowa:
Johnson County (0.4), Dallas County (0.4), Story County (0.4).
Lowest:
Crawford County (0.2), Wayne County (0.2), Louisa County (0.2).
Health
Winnebago County has a health index of B, which means it is quite healthy.
| Metric | Winnebago County | Iowa Avg | U.S. Average |
|---|---|---|---|
| Life expectancy (years) | 80.6 | 79.2 | 78.3 |
| Self-rated poor health | 13.2% | 13.6% | 16.3% |
| Smokers | 16.4% | 17.6% | 19.0% |
Highest health index among counties in
Iowa:
Johnson County (0.8), Story County (0.8), Winneshiek County (0.8).
Lowest:
Davis County (0.8), Wayne County (0.8), Appanoose County (0.8).
Winnebago County, IA Compared With Nearby Counties
How Winnebago County, IA compares with the 1 counties closest to it.
| Area | Population | Median household income | Median home price | Commute |
|---|---|---|---|---|
| Winnebago County, IA | 10,583 | $67,930 #2/2 | $134,868 #2/2 | 11.0 min #1/2 |
| Freeborn County, MN | 30,623 | $70,120 | $135,869 | 15.7 min |
Frequently Asked Questions
Common questions about Winnebago County, Iowa.
How big is Winnebago County, Iowa by population?
About 10,583 people live in Winnebago County, Iowa, in 4,641 households of 2.2 people on average. The median age is 43.2, so residents are older than the U.S. median of 37.3 by about 6 years.
How densely populated is Winnebago County, Iowa?
Averaged over its land area, Winnebago County, Iowa has 26 people per square mile, a density typical of rural areas. That is about 30% of the U.S. average of 86.
Is Winnebago County, Iowa an affordable place to live?
The median home costs 2.0 times the median household income ($134,868 against $67,930), compared with 3.1 times nationally. That is within the traditional rule of thumb of about 3 times income. Median rent of $717 a month takes about 13% of the median household's income, below the 30% level at which HUD considers renters cost-burdened.
How strong is the job market in Winnebago County, Iowa?
Unemployment in Winnebago County, Iowa is only 3.0%, well below the U.S. rate of 5.2%, a sign of a tight labor market where employers compete for workers.
How common is a college degree in Winnebago County, Iowa?
23.5% of adults in Winnebago County, Iowa hold a bachelor's degree or higher (about 1 in 4), well below the U.S. share of 31.6%.
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