Cassia County, Idaho Demographics 2026

Name: Cassia County, Idaho Demographics
Creator: U.S. Census Bureau
License: https://www.census.gov/data/developers/about/terms-of-service.html

Cassia County, Idaho has a population of 25,483, the 15th most populous county in Idaho. The median household income is $70,830 and the median home value is $284,600. The poverty rate is 12.4%.

Data vintage: U.S. Census Bureau ACS 2020–2024 5-Year Estimates · refreshed July 2026 · Methodology & source notes

Cassia County Quick Facts

Population 25,483

Median Household Income $70,830

Median Home Value $284,600

Poverty Rate 12.4%

Unemployment Rate 2.4%

Median Age 33.2 years

Homeownership Rate 68.6%

Affordability Ratio 4.0x

Bachelor's Degree+ 21.3%

High School Graduation 85.4%

Cities/Places 5

Population 25,483 15th of 44

Median Income $70,830 9% lower than state

Poverty Rate 12.4%

Unemployment 2.4%

How Cassia County Changed

Change from the 2019–2023 ACS period to 2020–2024. These are rolling five-year estimates, not year-over-year measurements.

Metric	2019–2023	2020–2024	Change
Population	25,165	25,483	+1.3%
Median household income	$67,042	$70,830	+5.7%
Median home value	$257,300	$284,600	+10.6%

Median Household Income

Cassia

$70,830

$77,800

National

$80,734

Median Home Value

Cassia

$284,600

$418,600

National

$332,700

Economy & Housing

Household Income Distribution

Under $25K 14.1%

$25K-$50K 20.1%

$50K-$100K 34.1%

$100K+ 31.8%

Detailed income brackets

Under $10K

3.9%

$10K-$15K

2.5%

$15K-$20K

4.7%

$20K-$25K

3.0%

$25K-$30K

4.7%

$30K-$35K

2.5%

$35K-$40K

4.9%

$40K-$45K

2.9%

$45K-$50K

5.1%

$50K-$60K

6.5%

$60K-$75K

11.9%

$75K-$100K

15.7%

$100K-$125K

12.1%

$125K-$150K

7.0%

$150K-$200K

7.0%

$200K+

5.7%

Employment

2.4% Unemployment Rate State: 3.7%|National: 5.2%

63.7% Labor Force Participation

Housing Overview

Owner 68.6%

Renter 31.4%

Affordability Index Moderate

4.0x home value to income ratio

Median gross rent $1,000/mo 16.9% of median household income annually

People & Demographics

Age Distribution

Under 18

30.9%

18-34

21.4%

35-54

23.2%

55-74

18.7%

75+

5.8%

Race & Ethnicity

Diversity Index

Moderate Diversity

Moderate diversity with one or two groups making up the majority.

State average: 36 | National average: 61

Education

Educational Attainment (Adults 25+)

Cities & Places in Cassia County

City	Population	Median Income	Poverty	Home Value
Burley	11,958	$67,468	15.3%	$231,300
Oakley	830	$78,750	9.2%	$233,500
Declo	477	$46,782	14.7%	$235,700
Albion	376	$68,125	7.4%	$269,400
Malta	346	$55,682	57.8%	$159,300

Explore Idaho Rankings

Cities by Population All cities ranked by size Richest Cities Ranked by median income Most Educated By bachelor's degree rate Most Affordable By housing affordability

Population Overview

Cassia County is located in Idaho with a total population of 25,483. It is the 15th most populous county out of 44 in Idaho. The county encompasses 5 Census-designated places.

Age Demographics

The median age in Cassia County is 33.2 years. This is 11% lower than the state median of 37.3 years. With 30.9% of the population under 18, Cassia County has a notably young demographic profile, suggesting a family-oriented community.

Economy, Income & Housing

The median household income in Cassia County is $70,830. This is 9% lower than the state median of $77,800. It is also 12% lower than the national median of $80,734. The poverty rate stands at 12.4%. This is 17% higher than the state poverty rate of 10.6%. The unemployment rate is 2.4%. This is 35% lower than the state rate of 3.7%. The median home value is $284,600. Housing costs are 32% lower than the state median of $418,600. The home-value-to-income ratio is 4.0x. 68.6% of occupied housing units are owner-occupied. This homeownership rate is 5% lower than the state average of 72.1%.

Race & Ethnicity

The largest racial or ethnic group in Cassia County is White (non-Hispanic), making up 64.4% of the population. Hispanic or Latino residents account for 30.1%. The Hispanic or Latino population is significantly higher than the state average (30.1% vs 13.7%). The Asian population (0.3%) is well below the state average of 1.3%.

Education

21.3% of residents aged 25 and older hold a bachelor's degree or higher. This is 33% lower than the state rate of 31.8%. Nationally, 35.7% of adults hold at least a bachelor's degree. The high school graduation rate (or equivalent) is 85.4%.

Data Sources & Methodology

All figures for Cassia County come from the U.S. Census Bureau's American Community Survey (ACS) 2020–2024 5-Year Estimates, with comparisons drawn against Idaho and national averages from the same dataset. See our methodology page for how each metric is defined, or data.census.gov for official tables with margins of error.

Frequently Asked Questions

What is the population of Cassia County, Idaho?

Cassia County has a population of 25,483, making it the 15th most populous county in Idaho.

What is the median income in Cassia County?

The median household income in Cassia County is $70,830 with a poverty rate of 12.4%.

How many cities are in Cassia County, Idaho?

Cassia County contains 5 Census-designated places.