Winnebago County, Iowa Population 2026
Updated April 2026 · US Census ACS 2023 5-Year Estimates · 69th-largest in Iowa
The population of Winnebago County, Iowa is 10,648 as of the 2023 American Community Survey, making it the 69th-largest county in Iowa. The median household income is $63,719, the median home value is $132,300, and the median age is 41.7.
The population of Winnebago County has declined 4.3% since 2010 (10,845 → 10,383), a -0.31% annualized rate.
10,648
Population
-0.31%
Annual growth
27
People / sq mi
$63,719
Median Income
$132,300
Median Home Value
Winnebago County covers 400 sq mi of land at 26.6 people per square mile.
About Winnebago County, IA
Winnebago County is a county in Iowa with a population of 10,648. It ranks #69 among counties in Iowa by population. The median age is 41.7, older than the national median. The population is 50.8% male and 49.2% female.
The median household income in Winnebago County is $63,719, below the US median of $74,580. 7.9% of residents live below the federal poverty level. Home values sit at a median of $132,300, with monthly rent averaging $712. The homeownership rate of 74.4% is higher than the national rate of 64.8%.
Educational attainment in Winnebago County reflects 25.1% of adults 25 and older holding a bachelor's degree or higher, below the national average of 34.3%. Roughly 6.9% of workers primarily work from home, below the national work-from-home rate of 14.2%. The average commute is 15.7 minutes each way.
Winnebago County Population History (2010-2024)
The county of Winnebago County had a population of 10,845 in 2010 and 10,383 in 2024, a -4.3% growth over 14 years. The peak was 10,845 in 2010. Average annual growth rate: -0.30%.
10,383
Population (2024)
10,845
Population (2010)
10,845
Peak (2010)
-0.30%
Avg Annual Growth
| Year | Population |
|---|---|
| 2010 | 10,845 |
| 2011 | 10,699 |
| 2012 | 10,608 |
| 2013 | 10,440 |
| 2014 | 10,567 |
| 2015 | 10,612 |
| 2016 | 10,599 |
| 2017 | 10,582 |
| 2018 | 10,555 |
| 2019 | 10,357 |
| 2020 | 10,656 |
| 2021 | 10,657 |
| 2022 | 10,651 |
| 2023 | 10,563 |
| 2024 | 10,383 |
Race & Ethnicity
| White | 90.8% |
| Black or African American | 0.9% |
| Asian | 0.0% |
| Hispanic or Latino (any race) | 0.3% |
| Two or More Races | 0.0% |
Age & Sex
41.7
Median Age
49.2%
Female
50.8%
Male
21.6%
Age 65+
Age Distribution
Children (under 15): 17.7% · Seniors (65+): 21.6%
Income & Poverty
| Median household income | $63,719$-9,428 vs state |
| Mean household income | $84,968 |
| Per-capita income | $36,877 |
| Poverty rate | 7.9%+1.0% vs state |
| Unemployment rate | 1.8% |
| Employment-to-population | 62.5% |
Top Industries by Employment
The largest employment sector in Winnebago County is professional & business services, accounting for 23.7% of workers.
How residents commute
0.1%
Drive alone
4.5%
Carpool
79.9%
Public transit
6.9%
Work from home
15.7 min
Avg commute
Housing
$132,300$-63,600 vs state
Median home value
$712
Median rent
74.4%
Homeownership rate
5,080
Total housing units
90.4%
Occupied
9.6%
Vacant
25.6%
Renter-occupied
Social & access
95.5%
With health insurance
93.1%
With broadband internet
35.8%
Foreign-born
6.3%
Veterans (18+)
12.2%
With a disability
93.9%
Speak language other than English at home
Education
94.7%
High School+
25.1%
Bachelor's+
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County rankings
Frequently Asked Questions
Winnebago County, Iowa has a population of 10,648 according to the US Census Bureau's 2023 American Community Survey 5-year estimates, making it the 69th-largest county in Iowa. Population density is 27 people per square mile.
The population of Winnebago County has declined 4.3% since 2010 (10,845 → 10,383), a -0.31% annualized rate.
The median household income in Winnebago County, Iowa is $63,719, with mean (average) household income of $84,968 and per-capita income of $36,877. 7.9% of residents live below the federal poverty level.
In Winnebago County, the largest racial and ethnic groups are White (90.8%), Black or African American (0.9%), Hispanic or Latino (0.3%). Figures are from the US Census Bureau's 2023 ACS 5-year estimates and reflect self-reported responses.
The median age in Winnebago County, Iowa is 41.7 years. Residents are 49.2% female and 50.8% male.
The median home value in Winnebago County is $132,300 and median monthly rent is $712. 74.4% of occupied housing units are owner-occupied. The county has 5,080 total housing units, 9.6% of which are vacant.
The largest employment sector in Winnebago County, Iowa is professional, scientific, and management services, employing 23.7% of workers. The unemployment rate is 1.8%.
Des Moines is among the largest cities associated with Winnebago 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.