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Twin Falls County, Idaho

2T

Indicators

Population and growth

MeasureTwin Falls CountyIdahoData periodSource
PopulationPeopleIdaho: 2,029,7332025 (estimate) · Census Bureau97,5392,029,7332025 (estimate)Census Bureau
Population densityPeople per square mileIdaho: 24.62025 (estimate) · Census Bureau50.824.62025 (estimate)Census Bureau
Population growth ratePercentIdaho: 1.4%2025 (estimate) · Census Bureau1.1%1.4%2025 (estimate)Census Bureau
Domestic migrationPeopleIdaho: 19,9152025 (estimate) · Census Bureau68919,9152025 (estimate)Census Bureau
Decennial census populationPeopleIdaho: 1,839,1062020 · Census Bureau90,0501,839,1062020Census Bureau
Population by race and Hispanic originPeopleIdaho: n/a2020–2024 (estimate) · Census Bureau70,557n/a2020–2024 (estimate)Census Bureau
Median ageYearsIdaho: 37.32020–2024 (estimate) · Census Bureau36.137.32020–2024 (estimate)Census Bureau

Housing and cost of living

MeasureTwin Falls CountyIdahoData periodSource
Median home valueDollarsIdaho: $418,6002020–2024 (estimate) · Census Bureau$337,900$418,6002020–2024 (estimate)Census Bureau
Median gross rentDollarsIdaho: $1,2382020–2024 (estimate) · Census Bureau$1,089$1,2382020–2024 (estimate)Census Bureau
Renters paying 30%+ of income on rentPercentIdaho: 46.9%2020–2024 (estimate) · Census Bureau51.8%46.9%2020–2024 (estimate)Census Bureau
Housing units authorized by building permitsCountIdaho: 17,9442025 (estimate) · Census Bureau52717,9442025 (estimate)Census Bureau
Subsidized housing units availableCountIdaho: 12,9422025 · HUD97612,9422025HUD

Jobs, wages and economy

MeasureTwin Falls CountyIdahoData periodSource
Median household incomeDollarsIdaho: $77,8002020–2024 (estimate) · Census Bureau$67,409$77,8002020–2024 (estimate)Census Bureau
Unemployment ratePercentIdaho: 3.7%2025 (estimate) · BLS3.4%3.7%2025 (estimate)BLS
Average annual wageDollarsIdaho: $62,3922025 · BLS$50,136$62,3922025BLS
Covered employmentPeopleIdaho: 874,2832025 · BLS42,703874,2832025BLS
Business establishmentsCountIdaho: 58,1002023 · Census Bureau3,02658,1002023Census Bureau
Poverty ratePercentIdaho: 10.6%2020–2024 (estimate) · Census Bureau11.5%10.6%2020–2024 (estimate)Census Bureau

Taxes, spending and government

MeasureTwin Falls CountyIdahoData periodSource
Average property tax rate by countyPercentIdaho: 0.680%2025 · Idaho Tax Commission1.059%0.680%2025Idaho Tax Commission
Ballots castCountIdaho: 917,4692024 · Idaho SOS37,888917,4692024Idaho SOS
Registered votersPeopleIdaho: 1,030,522September 2026 · Idaho SOS41,3161,030,522September 2026Idaho SOS

Education

MeasureTwin Falls CountyIdahoData periodSource
Public school enrollment by countyPeopleIdaho: n/a2023 · Idaho SDE16,237n/a2023Idaho SDE

Healthcare

MeasureTwin Falls CountyIdahoData periodSource
BirthsPeopleIdaho: 23,6952025 (estimate) · Census Bureau1,19923,6952025 (estimate)Census Bureau
Uninsured ratePercentIdaho: 9.1%2020–2024 (estimate) · Census Bureau10.2%9.1%2020–2024 (estimate)Census Bureau

Crime and public safety

MeasureTwin Falls CountyIdahoData periodSource
Group A offense ratePer 100,000 residentsIdaho: 3,166.522025 (preliminary) · Idaho State Police4,047.003,166.522025 (preliminary)Idaho State Police

Water

MeasureTwin Falls CountyIdahoData periodSource
Drought Severity and Coverage IndexIndexIdaho: 245October 6, 2026 · NDMC456245October 6, 2026NDMC
Irrigated landAcresIdaho: 3,167,4992022 · USDA NASS236,1963,167,4992022USDA NASS
Total water withdrawalsAcre-feetIdaho: 19,868,1562015 (estimate) · USGS2,239,97119,868,1562015 (estimate)USGS
Livestock water withdrawalsAcre-feetIdaho: 61,4802022 (estimate) · USGS7,75361,4802022 (estimate)USGS
Industrial water withdrawalsAcre-feetIdaho: 14,2422020 (estimate) · USGS92614,2422020 (estimate)USGS

Public lands, agriculture and wildfire

MeasureTwin Falls CountyIdahoData periodSource
FarmsCountIdaho: 22,8772022 · USDA NASS1,16922,8772022USDA NASS
Land in farmsAcresIdaho: 11,547,9632022 · USDA NASS459,16711,547,9632022USDA NASS
Market value of agricultural products soldDollarsIdaho: $10,892,201,0002022 · USDA NASS$1,135,933,000$10,892,201,0002022USDA NASS
Potato productionHundredweight (cwt)Idaho: 134,850,0002017 (estimate) · USDA NASS4,310,000134,850,0002017 (estimate)USDA NASS
Barley productionBushelsIdaho: 54,880,0002025 (estimate) · USDA NASS2,606,00054,880,0002025 (estimate)USDA NASS
Wildfires by countyCountIdaho: 1,5192025 · NIFC111,5192025NIFC

Transportation and infrastructure

MeasureTwin Falls CountyIdahoData periodSource
Traffic deathsCountIdaho: 2382024 · NHTSA142382024NHTSA
Mean travel time to workMinutesIdaho: 21.62020–2024 (estimate) · Census Bureau17.821.62020–2024 (estimate)Census Bureau
County-maintained road milesMilesIdaho: 28,011.7512018 · ITD1,268.29528,011.7512018ITD

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
Twin Falls County among Idaho’s 44 counties. Each county links to its page.

County facts

County seat
Twin Falls
Established
Land area
1,921.730 sq mi, 50.8 per sq mi (2025)
Website
www.twinfallscounty.org

Source: Idaho Secretary of State, Blue Book of Idaho, 2025-2026.

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

Population

Population, Twin Falls County, 2010 to 2025Population, Twin Falls County, 2010 to 2025. Twin Falls County: 77,545 in 2010, 97,539 in 2025.050k100k20102020Twin FallsCountyPeoplePopulation, Twin Falls County, 2010 to 2025Population, Twin Falls County, 2010 to 2025. Twin Falls County: 77,545 in 2010, 97,539 in 2025.050k100k2010201520202025Twin FallsCountyPeoplePopulation, Twin Falls County, 2010 to 2025Population, Twin Falls County, 2010 to 2025. Twin Falls County: 77,545 in 2010, 97,539 in 2025.050k100k2010201520202025Twin FallsCountyPeople

Source: U.S. Census Bureau, Population Estimates Program. Published .

Data table (16 rows)
PeriodTwin Falls County (people)
201077,545
201178,100
201278,550
201379,894
201480,986
201582,245
201683,819
201785,374
201886,029
201986,878
202090,365
202192,382
202293,890
202395,392
202496,467
202597,539

Unemployment rate

Unemployment rate, Twin Falls County, 1990 to 2025Unemployment rate, Twin Falls County, 1990 to 2025. Twin Falls County: 4.5% in 1990, 3.4% in 2025.0.0%5.0%10.0%20002020Twin FallsCountyPercentUnemployment rate, Twin Falls County, 1990 to 2025Unemployment rate, Twin Falls County, 1990 to 2025. Twin Falls County: 4.5% in 1990, 3.4% in 2025.0.0%5.0%10.0%1990200020102020Twin FallsCountyPercentUnemployment rate, Twin Falls County, 1990 to 2025Unemployment rate, Twin Falls County, 1990 to 2025. Twin Falls County: 4.5% in 1990, 3.4% in 2025.0.0%5.0%10.0%1990200020102020Twin FallsCountyPercent

Source: U.S. Bureau of Labor Statistics, Local Area Unemployment Statistics. Published .

Data table (36 rows)
PeriodTwin Falls County (percent)
19904.5%
19915.8%
19927.1%
19936.5%
19944.9%
19954.8%
19964.6%
19974.6%
19984.9%
19994.7%
20004.2%
20014.3%
20024.4%
20034.5%
20044.4%
20053.6%
20063.3%
20072.7%
20084.0%
20097.2%
20108.6%
20118.0%
20127.2%
20136.5%
20143.9%
20153.5%
20163.2%
20172.9%
20182.6%
20192.7%
20205.1%
20213.3%
20222.7%
20233.2%
20243.4%
20253.4%

Average annual wage

Average annual wage, Twin Falls County, 2001 to 2025Average annual wage, Twin Falls County, 2001 to 2025. Twin Falls County: $22,443 in 2001, $50,136 in 2025.$0$20k$40k$60k20102020Twin FallsCountyDollarsAverage annual wage, Twin Falls County, 2001 to 2025Average annual wage, Twin Falls County, 2001 to 2025. Twin Falls County: $22,443 in 2001, $50,136 in 2025.$0$20k$40k$60k20102020Twin FallsCountyDollarsAverage annual wage, Twin Falls County, 2001 to 2025Average annual wage, Twin Falls County, 2001 to 2025. Twin Falls County: $22,443 in 2001, $50,136 in 2025.$0$20k$40k$60k20052010201520202025Twin FallsCountyDollars

Source: U.S. Bureau of Labor Statistics, Quarterly Census of Employment and Wages, annual averages. Published .

Data table (25 rows)
PeriodTwin Falls County (dollars)
2001$22,443
2002$22,788
2003$23,657
2004$24,431
2005$25,087
2006$26,520
2007$27,369
2008$27,946
2009$28,535
2010$28,885
2011$29,091
2012$30,060
2013$30,135
2014$30,899
2015$32,459
2016$33,346
2017$34,658
2018$35,710
2019$36,641
2020$39,108
2021$41,086
2022$44,483
2023$46,675
2024$48,171
2025$50,136

In this county

PlaceWhat it is
Hagerman Fossil Beds National MonumentNational Park Service unit
Snake River at Milner (total flow)USGS river gage
Snake River near KimberlyUSGS river gage
Snake River near Twin FallsUSGS river gage

Park boundaries from the National Park Service against Census Bureau county lines. A gage sits in the county the U.S. Geological Survey assigns it.

County officials

OfficeNameParty
Commissioner, District 1Brent ReinkeR
Commissioner, District 2Don HallR
Commissioner, District 3Jack JohnsonR
AssessorBradford WillsR
ClerkKristina GlascockR
CoronerGene TurleyR
ProsecutorGrant LoebsR
SheriffTom CarterR
TreasurerBecky PetersenR

Source: Idaho Secretary of State, Blue Book of Idaho, 2025-2026.

Representation

Legislative districts

DistrictSenatorRepresentative, Seat ARepresentative, Seat B
24 (part)Glenneda Zuiderveld (R)Clint Hostetler (R)Steve Miller (R)
25 (part)Joshua Kohl (R)Don Hall (R)David J. Leavitt (R)

A district marked part covers a portion of the county; the rest of the county is in the other districts listed.

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. Published .

Source: Idaho Legislature, Senate and House membership.

Source: Clerk of the U.S. House of Representatives, Member lists of the House and Senate. Published .

This page was last updated .