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Cassia County, Idaho

4C

Indicators

Population and growth

Source: Census Bureau.

MeasureCassia CountyIdahoData period
PopulationIdaho: 2,029,7332025 (estimate)26,3972,029,7332025 (estimate)
Population densityPeople per square mileIdaho: 24.62025 (estimate)10.324.62025 (estimate)
Population growth rateIdaho: 1.4%2025 (estimate)0.7%1.4%2025 (estimate)
Domestic migrationIdaho: 19,9152025 (estimate)−8919,9152025 (estimate)
Decennial census populationIdaho: 1,839,106202024,6881,839,1062020
Population by race and Hispanic origin: White alone, not Hispanic or LatinoIdaho: 1,519,4242020–2024 (estimate)16,4011,519,4242020–2024 (estimate)
Median ageYearsIdaho: 37.32020–2024 (estimate)33.237.32020–2024 (estimate)

Housing and cost of living

MeasureCassia CountyIdahoData periodSource
Median home valueIdaho: $418,6002020–2024 (estimate) · Census Bureau$284,600$418,6002020–2024 (estimate)Census Bureau
Median home purchase mortgage amountIdaho: $385,0002025 · CFPB$295,000$385,0002025CFPB
Median gross rentIdaho: $1,2382020–2024 (estimate) · Census Bureau$1,000$1,2382020–2024 (estimate)Census Bureau
Renters paying 30%+ of income on rentIdaho: 46.9%2020–2024 (estimate) · Census Bureau43.3%46.9%2020–2024 (estimate)Census Bureau
Housing units authorized by building permitsIdaho: 17,9442025 (estimate) · Census Bureau11217,9442025 (estimate)Census Bureau
Subsidized housing units availableIdaho: 12,9422025 · HUD15212,9422025HUD

Jobs, wages and economy

MeasureCassia CountyIdahoData periodSource
Median household incomeIdaho: $77,8002020–2024 (estimate) · Census Bureau$70,830$77,8002020–2024 (estimate)Census Bureau
Unemployment rateIdaho: 3.7%2025 (estimate) · BLS3.2%3.7%2025 (estimate)BLS
Average annual wageIdaho: $62,3922025 · BLS$52,100$62,3922025BLS
Covered employmentIdaho: 874,2832025 · BLS12,609874,2832025BLS
Business establishmentsIdaho: 58,1002023 · Census Bureau77358,1002023Census Bureau
Poverty rateIdaho: 10.6%2020–2024 (estimate) · Census Bureau12.4%10.6%2020–2024 (estimate)Census Bureau

Taxes, spending and government

MeasureCassia CountyIdahoData periodSource
Average property tax rate by county: UrbanIdaho: 0.680%2025 · Idaho Tax Commission0.673%0.680%2025Idaho Tax Commission
Ballots castIdaho: 719,1392026 (preliminary) · Idaho SOS6,918719,1392026 (preliminary)Idaho SOS
Registered votersIdaho: 1,030,522September 2026 · Idaho SOS10,4161,030,522September 2026Idaho SOS

Education

Data period 2024. Source: Idaho SDE.

MeasureCassia CountyIdaho
Public school enrollment by countyIdaho: n/a5,527n/a

Healthcare

Source: Census Bureau.

MeasureCassia CountyIdahoData period
BirthsIdaho: 23,6952025 (estimate)41923,6952025 (estimate)
Uninsured rateIdaho: 9.1%2020–2024 (estimate)11.7%9.1%2020–2024 (estimate)

Crime and public safety

Data period 2025 (preliminary). Source: Idaho State Police.

MeasureCassia CountyIdaho
Group A offense ratePer 100,000 residentsIdaho: 3,1671,4723,167

Water

MeasureCassia CountyIdahoData periodSource
Drought Severity and Coverage IndexIndexIdaho: 222October 27, 2026 · NDMC394222October 27, 2026NDMC
Irrigated landAcresIdaho: 3,167,4992022 · USDA NASS274,0533,167,4992022USDA NASS
Total water withdrawalsAcre-feetIdaho: 19,868,1562015 (estimate) · USGS1,106,44319,868,1562015 (estimate)USGS
Livestock water withdrawalsAcre-feetIdaho: 61,4802022 (estimate) · USGS6,47261,4802022 (estimate)USGS
Industrial water withdrawalsAcre-feetIdaho: 14,2422020 (estimate) · USGS25614,2422020 (estimate)USGS

Public lands, agriculture and wildfire

MeasureCassia CountyIdahoData periodSource
FarmsIdaho: 22,8772022 · USDA NASS55422,8772022USDA NASS
Land in farmsAcresIdaho: 11,547,9632022 · USDA NASS657,66411,547,9632022USDA NASS
Market value of agricultural products soldIdaho: $10,892,201,0002022 · USDA NASS$1,153,031,000$10,892,201,0002022USDA NASS
Potato productionHundredweight (cwt)Idaho: 134,850,0002017 (estimate) · USDA NASS10,900,000134,850,0002017 (estimate)USDA NASS
Barley productionBushelsIdaho: 54,880,0002025 (estimate) · USDA NASS5,435,00054,880,0002025 (estimate)USDA NASS
Wildfires by countyIdaho: 1,5192025 · NIFC331,5192025NIFC

Transportation and infrastructure

MeasureCassia CountyIdahoData periodSource
Traffic deathsIdaho: 2382024 · NHTSA122382024NHTSA
Mean travel time to workMinutesIdaho: 21.62020–2024 (estimate) · Census Bureau17.921.62020–2024 (estimate)Census Bureau
County-maintained road milesMilesIdaho: 28,0122018 · ITD1,23828,0122018ITD

Compare every Idaho county side by side

Ada CountyAdams CountyBannock CountyBear Lake CountyBenewah CountyBingham CountyBlaine CountyBoise CountyBonner CountyBonneville CountyBoundary CountyButte CountyCamas CountyCanyon CountyCaribou CountyCassia CountyClark CountyClearwater CountyCuster CountyElmore CountyFranklin CountyFremont CountyGem CountyGooding CountyIdaho CountyJefferson CountyJerome CountyKootenai CountyLatah CountyLemhi CountyLewis CountyLincoln CountyMadison CountyMinidoka CountyNez Perce CountyOneida CountyOwyhee CountyPayette CountyPower CountyShoshone CountyTeton CountyTwin Falls CountyValley CountyWashington County
Cassia County among Idaho’s 44 counties. Each county links to its page.

County facts

County seat
Burley
Established
Land area
2,566 sq mi, 10.3 per sq mi (2025)
Website
www.cassia.gov

Source: Idaho SOS, Blue Book of Idaho, 2025-2026.

Source: Census Bureau, Gazetteer Files, 2025 and 2026 (counties and states).

Population

Population, Cassia County, 2010 to 2025Population, Cassia County, 2010 to 2025. Cassia County: 23,080 in 2010, 26,397 in 2025.010k20k30k20102020PeoplePopulation, Cassia County, 2010 to 2025Population, Cassia County, 2010 to 2025. Cassia County: 23,080 in 2010, 26,397 in 2025.010k20k30k2010201520202025PeoplePopulation, Cassia County, 2010 to 2025Population, Cassia County, 2010 to 2025. Cassia County: 23,080 in 2010, 26,397 in 2025.010k20k30k2010201520202025People

Source: Census Bureau, Population Estimates Program.

Data table (16 rows)
PeriodCassia County (people)
201023,080
201123,106
201223,263
201323,344
201423,503
201523,499
201623,479
201723,650
201823,791
201924,030
202024,753
202125,235
202225,657
202325,948
202426,210
202526,397

Unemployment rate

Unemployment rate, Cassia County, 1990 to 2025Unemployment rate, Cassia County, 1990 to 2025. Cassia County: 7.2% in 1990, 3.2% in 2025.0.0%5.0%10.0%20002020PercentUnemployment rate, Cassia County, 1990 to 2025Unemployment rate, Cassia County, 1990 to 2025. Cassia County: 7.2% in 1990, 3.2% in 2025.0.0%5.0%10.0%1990200020102020PercentUnemployment rate, Cassia County, 1990 to 2025Unemployment rate, Cassia County, 1990 to 2025. Cassia County: 7.2% in 1990, 3.2% in 2025.0.0%5.0%10.0%1990200020102020Percent

Source: BLS, Local Area Unemployment Statistics.

Data table (36 rows)
PeriodCassia County (percent)
19907.2%
19916.4%
19928.2%
19938.5%
19947.9%
19956.7%
19966.4%
19976.9%
19987.4%
19996.5%
20004.9%
20014.8%
20025.4%
20036.1%
20046.0%
20054.6%
20064.0%
20073.1%
20083.8%
20096.2%
20107.2%
20116.6%
20126.0%
20135.9%
20143.9%
20153.1%
20162.9%
20172.5%
20182.2%
20192.4%
20204.0%
20213.1%
20222.7%
20232.9%
20243.2%
20253.2%

Average annual wage

Average annual wage, Cassia County, 2001 to 2025Average annual wage, Cassia County, 2001 to 2025. Cassia County: $21,811 in 2001, $52,100 in 2025.$0$20k$40k$60k20102020DollarsAverage annual wage, Cassia County, 2001 to 2025Average annual wage, Cassia County, 2001 to 2025. Cassia County: $21,811 in 2001, $52,100 in 2025.$0$20k$40k$60k20102020DollarsAverage annual wage, Cassia County, 2001 to 2025Average annual wage, Cassia County, 2001 to 2025. Cassia County: $21,811 in 2001, $52,100 in 2025.$0$20k$40k$60k20052010201520202025Dollars

Source: BLS, Quarterly Census of Employment and Wages, annual averages.

Data table (25 rows)
PeriodCassia County (dollars)
2001$21,811
2002$22,327
2003$22,784
2004$23,675
2005$24,267
2006$25,732
2007$27,040
2008$27,984
2009$28,192
2010$28,859
2011$29,754
2012$30,698
2013$31,108
2014$31,643
2015$33,501
2016$34,346
2017$35,473
2018$36,762
2019$37,900
2020$39,635
2021$41,295
2022$44,771
2023$47,637
2024$49,757
2025$52,100

In this county

PlaceWhat it is
City of Rocks National ReserveNational Park Service unit

Park boundaries from the National Park Service against Census Bureau county lines.

County officials

OfficeNameParty
Commissioner, District 1Leonard BeckR
Commissioner, District 2Robert J. KunauR
Commissioner, District 3Kent SearleR
AssessorMartin AdamsR
ClerkJoseph LarsenR
CoronerCraig RinehartR
ProsecutorMcCord LarsenR
SheriffGeorge WarrellR
TreasurerLaura GreenerR

Source: Idaho SOS, Blue Book of Idaho, 2025-2026.

Representation

Legislative district

DistrictSenatorRepresentative, Seat ARepresentative, Seat B
27Kelly Arthur Anthon (R), President Pro TemporeDouglas T. Pickett (R), Assistant Majority LeaderClay Handy (R)

Congress

Congressional District 2
Michael K. Simpson (R)
U.S. Senate
James E. Risch (R); Mike Crapo (R)

Source: Idaho Legislature, Reapportionment plans L03 and C03, 2021.

Source: Idaho Legislature, Senate and House membership.

Source: House Clerk, Member lists of the House and Senate.

This page was last updated .