Skip to content
Understand IdahoSearch

Adams County, Idaho

2A

Indicators

Population and growth

MeasureAdams CountyIdahoData periodSource
PopulationPeopleIdaho: 2,029,7332025 (estimate) · Census Bureau5,0132,029,7332025 (estimate)Census Bureau
Population densityPeople per square mileIdaho: 24.62025 (estimate) · Census Bureau3.724.62025 (estimate)Census Bureau
Population growth ratePercentIdaho: 1.4%2025 (estimate) · Census Bureau0.1%1.4%2025 (estimate)Census Bureau
Domestic migrationPeopleIdaho: 19,9152025 (estimate) · Census Bureau219,9152025 (estimate)Census Bureau
Decennial census populationPeopleIdaho: 1,839,1062020 · Census Bureau4,3781,839,1062020Census Bureau
Population by race and Hispanic originPeopleIdaho: n/a2020–2024 (estimate) · Census Bureau4,128n/a2020–2024 (estimate)Census Bureau
Median ageYearsIdaho: 37.32020–2024 (estimate) · Census Bureau53.937.32020–2024 (estimate)Census Bureau

Housing and cost of living

MeasureAdams CountyIdahoData periodSource
Median home valueDollarsIdaho: $418,6002020–2024 (estimate) · Census Bureau$376,500$418,6002020–2024 (estimate)Census Bureau
Median gross rentDollarsIdaho: $1,2382020–2024 (estimate) · Census Bureau$830$1,2382020–2024 (estimate)Census Bureau
Renters paying 30%+ of income on rentPercentIdaho: 46.9%2020–2024 (estimate) · Census Bureau56.3%46.9%2020–2024 (estimate)Census Bureau
Housing units authorized by building permitsCountIdaho: 17,9442025 (estimate) · Census Bureau1117,9442025 (estimate)Census Bureau
Subsidized housing units availableCountIdaho: 12,9422025 · HUD112,9422025HUD

Jobs, wages and economy

MeasureAdams CountyIdahoData periodSource
Median household incomeDollarsIdaho: $77,8002020–2024 (estimate) · Census Bureau$61,808$77,8002020–2024 (estimate)Census Bureau
Unemployment ratePercentIdaho: 3.7%2025 (estimate) · BLS7.2%3.7%2025 (estimate)BLS
Average annual wageDollarsIdaho: $62,3922025 · BLS$59,911$62,3922025BLS
Covered employmentPeopleIdaho: 874,2832025 · BLS1,007874,2832025BLS
Business establishmentsCountIdaho: 58,1002023 · Census Bureau11958,1002023Census Bureau
Poverty ratePercentIdaho: 10.6%2020–2024 (estimate) · Census Bureau17.9%10.6%2020–2024 (estimate)Census Bureau

Taxes, spending and government

MeasureAdams CountyIdahoData periodSource
Average property tax rate by countyPercentIdaho: 0.680%2025 · Idaho Tax Commission0.571%0.680%2025Idaho Tax Commission
Ballots castCountIdaho: 917,4692024 · Idaho SOS2,724917,4692024Idaho SOS
Registered votersPeopleIdaho: 1,030,522September 2026 · Idaho SOS3,0791,030,522September 2026Idaho SOS

Education

MeasureAdams CountyIdahoData periodSource
Public school enrollment by countyPeopleIdaho: n/a2024 · Idaho SDE427n/a2024Idaho SDE

Healthcare

MeasureAdams CountyIdahoData periodSource
BirthsPeopleIdaho: 23,6952025 (estimate) · Census Bureau5123,6952025 (estimate)Census Bureau
Uninsured ratePercentIdaho: 9.1%2020–2024 (estimate) · Census Bureau11.9%9.1%2020–2024 (estimate)Census Bureau

Crime and public safety

MeasureAdams CountyIdahoData periodSource
Group A offense ratePer 100,000 residentsIdaho: 3,166.522025 (preliminary) · Idaho State Police2,727.003,166.522025 (preliminary)Idaho State Police

Water

MeasureAdams CountyIdahoData periodSource
Drought Severity and Coverage IndexIndexIdaho: 245October 6, 2026 · NDMC220245October 6, 2026NDMC
Irrigated landAcresIdaho: 3,167,4992022 · USDA NASS19,1363,167,4992022USDA NASS
Total water withdrawalsAcre-feetIdaho: 19,868,1562015 (estimate) · USGS40,53819,868,1562015 (estimate)USGS
Livestock water withdrawalsAcre-feetIdaho: 61,4802022 (estimate) · USGS21761,4802022 (estimate)USGS
Industrial water withdrawalsAcre-feetIdaho: 14,2422020 (estimate) · USGS7514,2422020 (estimate)USGS

Public lands, agriculture and wildfire

MeasureAdams CountyIdahoData periodSource
FarmsCountIdaho: 22,8772022 · USDA NASS22922,8772022USDA NASS
Land in farmsAcresIdaho: 11,547,9632022 · USDA NASS145,57011,547,9632022USDA NASS
Market value of agricultural products soldDollarsIdaho: $10,892,201,0002022 · USDA NASS$15,577,000$10,892,201,0002022USDA NASS
Barley productionBushelsIdaho: 53,290,0001996 (estimate) · USDA NASS41,30053,290,0001996 (estimate)USDA NASS
Wildfires by countyCountIdaho: 1,5192025 · NIFC271,5192025NIFC

Transportation and infrastructure

MeasureAdams CountyIdahoData periodSource
Traffic deathsCountIdaho: 2382024 · NHTSA22382024NHTSA
Mean travel time to workMinutesIdaho: 21.62020–2024 (estimate) · Census Bureau19.721.62020–2024 (estimate)Census Bureau
County-maintained road milesMilesIdaho: 28,011.7512018 · ITD375.72228,011.7512018ITD

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

County facts

County seat
Council
Established
Land area
1,362.804 sq mi, 3.7 per sq mi (2025)
Website
co.adams.id.us

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, Adams County, 2010 to 2025Population, Adams County, 2010 to 2025. Adams County: 3,962 in 2010, 5,013 in 2025.02,0004,0006,00020102020AdamsCountyPeoplePopulation, Adams County, 2010 to 2025Population, Adams County, 2010 to 2025. Adams County: 3,962 in 2010, 5,013 in 2025.02,0004,0006,0002010201520202025Adams CountyPeoplePopulation, Adams County, 2010 to 2025Population, Adams County, 2010 to 2025. Adams County: 3,962 in 2010, 5,013 in 2025.02,0004,0006,0002010201520202025Adams CountyPeople

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

Data table (16 rows)
PeriodAdams County (people)
20103,962
20113,981
20123,908
20133,863
20143,883
20153,891
20163,941
20174,127
20184,234
20194,294
20204,423
20214,619
20224,778
20234,895
20245,010
20255,013

Unemployment rate

Unemployment rate, Adams County, 1990 to 2025Unemployment rate, Adams County, 1990 to 2025. Adams County: 12.0% in 1990, 7.2% in 2025.0.0%5.0%10.0%15.0%20.0%20002020AdamsCountyPercentUnemployment rate, Adams County, 1990 to 2025Unemployment rate, Adams County, 1990 to 2025. Adams County: 12.0% in 1990, 7.2% in 2025.0.0%5.0%10.0%15.0%20.0%1990200020102020Adams CountyPercentUnemployment rate, Adams County, 1990 to 2025Unemployment rate, Adams County, 1990 to 2025. Adams County: 12.0% in 1990, 7.2% in 2025.0.0%5.0%10.0%15.0%20.0%1990200020102020Adams CountyPercent

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

Data table (36 rows)
PeriodAdams County (percent)
199012.0%
199114.7%
199214.0%
199314.3%
199411.7%
199514.4%
199614.8%
199715.0%
199815.1%
199914.5%
20009.9%
200111.2%
200212.2%
200312.3%
200411.9%
20058.0%
20066.6%
20075.6%
200810.3%
200916.9%
201018.7%
201118.0%
201215.4%
201315.2%
20149.2%
20157.1%
20167.0%
20175.9%
20185.6%
20197.0%
202010.0%
20216.7%
20226.0%
20236.6%
20246.8%
20257.2%

Average annual wage

Average annual wage, Adams County, 2001 to 2025Average annual wage, Adams County, 2001 to 2025. Adams County: $21,891 in 2001, $59,911 in 2025.$0$20k$40k$60k20102020AdamsCountyDollarsAverage annual wage, Adams County, 2001 to 2025Average annual wage, Adams County, 2001 to 2025. Adams County: $21,891 in 2001, $59,911 in 2025.$0$20k$40k$60k20102020Adams CountyDollarsAverage annual wage, Adams County, 2001 to 2025Average annual wage, Adams County, 2001 to 2025. Adams County: $21,891 in 2001, $59,911 in 2025.$0$20k$40k$60k20052010201520202025Adams CountyDollars

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

Data table (25 rows)
PeriodAdams County (dollars)
2001$21,891
2002$23,297
2003$23,247
2004$23,119
2005$24,046
2006$25,751
2007$26,092
2008$25,961
2009$27,286
2010$27,997
2011$30,059
2012$32,336
2013$32,309
2014$33,049
2015$34,315
2016$35,980
2017$36,821
2018$37,169
2019$38,654
2020$42,021
2021$47,471
2022$51,141
2023$53,644
2024$56,947
2025$59,911

County officials

OfficeNameParty
Commissioner, District 1Joe IvesonR
Commissioner, District 2Daren WardR
Commissioner, District 3Viki PurdyR
AssessorStacey Swift DreyerR
ClerkSherry WardR
CoronerSusan WarnerR
ProsecutorPeter DonovanR
SheriffRyan ZollmanR
TreasurerTonjua SpelmanR

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

Representation

Legislative district

DistrictSenatorRepresentative, Seat ARepresentative, Seat B
7Cindy J. Carlson (R)Kyle Harris (R)Charlie Shepherd (R)

Congress

Congressional District 1
Russ Fulcher (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 .