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Henry County, IA Demographics

Henry County, IA is the 33rd most populous of 99 counties in Iowa, with 20,482 residents across 434 square miles. That is about 47 people per square mile.

At the 2020 census

Population 20,482
Land area 434 sq mi
Density 47 / sq mi

Data: 2020 Census · American Community Survey 2024

How Henry 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: Henry County, IA

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

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

Census tracts in Henry County, IA

Name Population Sq mi Per sq mi
Census Tract 9704 5,328 10.3 515
Census Tract 9703 4,697 9.0 522
Census Tract 9701 3,729 153.7 24
Census Tract 9705 3,704 103.0 36
Census Tract 9702 3,024 158.3 19

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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 →