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Winnebago County, IA Demographics

Winnebago County, IA is the 69th most populous of 99 counties in Iowa, with 10,679 residents across 400 square miles. That is about 27 people per square mile.

At the 2020 census

Population 10,679
Land area 400 sq mi
Density 27 / sq mi

Data: 2020 Census · American Community Survey 2024

How Winnebago County compares to the US

We're computing this county's comparison table — check back shortly. Population, land area, and density above are already exact.

Central Location: Winnebago County, IA

Measured from the county's main population center using 2020 census blocks.

We're computing the drive-time and radius areas around Winnebago County, IA — check back shortly. Meanwhile you can drop a pin anywhere in the radius tool.

Census tracts in Winnebago County, IA

Name Population Sq mi Per sq mi
Census Tract 6801 4,119 163.8 25
Census Tract 6803 4,026 6.1 661
Census Tract 6802 2,534 230.6 11

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About this page

This page shows demographics for a US county from the 2020 census and the American Community Survey: population, land area, density, urban share, and how the county compares to national averages for income, housing, age, and more.

Counties subdivide into census tracts, listed below with their populations. The drive-time and radius tables measure the population around the county's main population center.

Read how BlockAtlas computes population within an area →