All counties →

Cass County, IA Demographics

Cass County, IA is the 58th most populous of 99 counties in Iowa, with 13,127 residents across 564 square miles. That is about 23 people per square mile.

At the 2020 census

Population 13,127
Land area 564 sq mi
Density 23 / sq mi

Data: 2020 Census · American Community Survey 2024

How Cass 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: Cass County, IA

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

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

Census tracts in Cass County, IA

Name Population Sq mi Per sq mi
Census Tract 1904 4,073 6.2 661
Census Tract 1905 2,898 14.3 203
Census Tract 1901 2,433 221.5 11
Census Tract 1902 2,186 132.2 17
Census Tract 1903 1,537 190.1 8

Related places

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 →