All counties →

Cassia County, ID Demographics

Cassia County, ID is the 15th most populous of 44 counties in Idaho, with 24,655 residents across 2,566 square miles. That is about 10 people per square mile.

At the 2020 census

Population 24,655
Land area 2,566 sq mi
Density 10 / sq mi

Data: 2020 Census · American Community Survey 2024

How Cassia 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: Cassia County, ID

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

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

Census tracts in Cassia County, ID

Name Population Sq mi Per sq mi
Census Tract 9505 6,008 21.7 277
Census Tract 9503 5,660 21.2 267
Census Tract 9504 4,295 2.5 1,690
Census Tract 9502 3,464 63.1 55
Census Tract 9501 2,816 1,626.8 2
Census Tract 9506 2,412 830.4 3

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 →