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Madison County, Idaho

1M

Indicators

Population and growth

MeasureMadison CountyIdahoData periodSource
PopulationPeopleIdaho: 2,029,7332025 (estimate) · Census Bureau55,1722,029,7332025 (estimate)Census Bureau
Population densityPeople per square mileIdaho: 24.62025 (estimate) · Census Bureau117.624.62025 (estimate)Census Bureau
Population growth ratePercentIdaho: 1.4%2025 (estimate) · Census Bureau0.4%1.4%2025 (estimate)Census Bureau
Domestic migrationPeopleIdaho: 19,9152025 (estimate) · Census Bureau−77519,9152025 (estimate)Census Bureau
Decennial census populationPeopleIdaho: 1,839,1062020 · Census Bureau52,9131,839,1062020Census Bureau
Population by race and Hispanic originPeopleIdaho: n/a2020–2024 (estimate) · Census Bureau45,595n/a2020–2024 (estimate)Census Bureau
Median ageYearsIdaho: 37.32020–2024 (estimate) · Census Bureau21.437.32020–2024 (estimate)Census Bureau

Housing and cost of living

MeasureMadison CountyIdahoData periodSource
Median home valueDollarsIdaho: $418,6002020–2024 (estimate) · Census Bureau$414,800$418,6002020–2024 (estimate)Census Bureau
Median gross rentDollarsIdaho: $1,2382020–2024 (estimate) · Census Bureau$1,014$1,2382020–2024 (estimate)Census Bureau
Renters paying 30%+ of income on rentPercentIdaho: 46.9%2020–2024 (estimate) · Census Bureau48.7%46.9%2020–2024 (estimate)Census Bureau
Housing units authorized by building permitsCountIdaho: 17,9442025 (estimate) · Census Bureau84217,9442025 (estimate)Census Bureau
Subsidized housing units availableCountIdaho: 12,9422025 · HUD18112,9422025HUD

Jobs, wages and economy

MeasureMadison CountyIdahoData periodSource
Median household incomeDollarsIdaho: $77,8002020–2024 (estimate) · Census Bureau$60,160$77,8002020–2024 (estimate)Census Bureau
Unemployment ratePercentIdaho: 3.7%2025 (estimate) · BLS3.7%3.7%2025 (estimate)BLS
Average annual wageDollarsIdaho: $62,3922025 · BLS$43,825$62,3922025BLS
Covered employmentPeopleIdaho: 874,2832025 · BLS17,803874,2832025BLS
Business establishmentsCountIdaho: 58,1002023 · Census Bureau1,11358,1002023Census Bureau
Poverty ratePercentIdaho: 10.6%2020–2024 (estimate) · Census Bureau24.5%10.6%2020–2024 (estimate)Census Bureau

Taxes, spending and government

MeasureMadison CountyIdahoData periodSource
Average property tax rate by countyPercentIdaho: 0.680%2025 · Idaho Tax Commission0.923%0.680%2025Idaho Tax Commission
Ballots castCountIdaho: 917,4692024 · Idaho SOS17,676917,4692024Idaho SOS
Registered votersPeopleIdaho: 1,030,522September 2026 · Idaho SOS21,0031,030,522September 2026Idaho SOS

Education

MeasureMadison CountyIdahoData periodSource
Public school enrollment by countyPeopleIdaho: n/a2024 · Idaho SDE8,703n/a2024Idaho SDE

Healthcare

MeasureMadison CountyIdahoData periodSource
BirthsPeopleIdaho: 23,6952025 (estimate) · Census Bureau1,03823,6952025 (estimate)Census Bureau
Uninsured ratePercentIdaho: 9.1%2020–2024 (estimate) · Census Bureau4.9%9.1%2020–2024 (estimate)Census Bureau

Crime and public safety

MeasureMadison CountyIdahoData periodSource
Group A offense ratePer 100,000 residentsIdaho: 3,166.522025 (preliminary) · Idaho State Police1,522.003,166.522025 (preliminary)Idaho State Police

Water

MeasureMadison CountyIdahoData periodSource
Drought Severity and Coverage IndexIndexIdaho: 245October 6, 2026 · NDMC373245October 6, 2026NDMC
Irrigated landAcresIdaho: 3,167,4992022 · USDA NASS83,4683,167,4992022USDA NASS
Total water withdrawalsAcre-feetIdaho: 19,868,1562015 (estimate) · USGS414,99019,868,1562015 (estimate)USGS
Livestock water withdrawalsAcre-feetIdaho: 61,4802022 (estimate) · USGS12861,4802022 (estimate)USGS
Industrial water withdrawalsAcre-feetIdaho: 14,2422020 (estimate) · USGS25614,2422020 (estimate)USGS

Public lands, agriculture and wildfire

MeasureMadison CountyIdahoData periodSource
FarmsCountIdaho: 22,8772022 · USDA NASS35822,8772022USDA NASS
Land in farmsAcresIdaho: 11,547,9632022 · USDA NASS166,92011,547,9632022USDA NASS
Market value of agricultural products soldDollarsIdaho: $10,892,201,0002022 · USDA NASS$212,410,000$10,892,201,0002022USDA NASS
Potato productionHundredweight (cwt)Idaho: 130,400,0002015 (estimate) · USDA NASS10,680,000130,400,0002015 (estimate)USDA NASS
Barley productionBushelsIdaho: 60,480,0002023 (estimate) · USDA NASS5,207,00060,480,0002023 (estimate)USDA NASS
Wildfires by countyCountIdaho: 1,5192025 · NIFC61,5192025NIFC

Transportation and infrastructure

MeasureMadison CountyIdahoData periodSource
Traffic deathsCountIdaho: 2382024 · NHTSA42382024NHTSA
Mean travel time to workMinutesIdaho: 21.62020–2024 (estimate) · Census Bureau16.421.62020–2024 (estimate)Census Bureau
County-maintained road milesMilesIdaho: 28,011.7512018 · ITD478.96728,011.7512018ITD

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

County facts

County seat
Rexburg
Established
Land area
469.267 sq mi, 117.6 per sq mi (2025)
Website
co.madison.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, Madison County, 2010 to 2025Population, Madison County, 2010 to 2025. Madison County: 37,592 in 2010, 55,172 in 2025.020k40k60k20102020MadisonCountyPeoplePopulation, Madison County, 2010 to 2025Population, Madison County, 2010 to 2025. Madison County: 37,592 in 2010, 55,172 in 2025.020k40k60k2010201520202025Madison CountyPeoplePopulation, Madison County, 2010 to 2025Population, Madison County, 2010 to 2025. Madison County: 37,592 in 2010, 55,172 in 2025.020k40k60k2010201520202025Madison CountyPeople

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

Data table (16 rows)
PeriodMadison County (people)
201037,592
201137,908
201237,662
201337,527
201437,900
201537,989
201638,972
201739,370
201839,261
201939,907
202052,950
202154,126
202255,251
202354,819
202454,948
202555,172

Unemployment rate

Unemployment rate, Madison County, 1990 to 2025Unemployment rate, Madison County, 1990 to 2025. Madison County: 4.4% in 1990, 3.7% in 2025.0.0%2.0%4.0%6.0%8.0%20002020MadisonCountyPercentUnemployment rate, Madison County, 1990 to 2025Unemployment rate, Madison County, 1990 to 2025. Madison County: 4.4% in 1990, 3.7% in 2025.0.0%2.0%4.0%6.0%8.0%1990200020102020Madison CountyPercentUnemployment rate, Madison County, 1990 to 2025Unemployment rate, Madison County, 1990 to 2025. Madison County: 4.4% in 1990, 3.7% in 2025.0.0%2.0%4.0%6.0%8.0%1990200020102020Madison CountyPercent

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

Data table (36 rows)
PeriodMadison County (percent)
19904.4%
19914.4%
19922.9%
19933.0%
19943.2%
19953.4%
19963.4%
19973.3%
19982.9%
19992.5%
20003.5%
20013.2%
20023.1%
20033.1%
20043.1%
20052.7%
20062.6%
20072.1%
20083.5%
20096.3%
20105.4%
20115.3%
20124.8%
20134.6%
20142.9%
20152.5%
20162.9%
20172.3%
20182.1%
20192.6%
20203.3%
20212.8%
20222.5%
20232.9%
20243.6%
20253.7%

Average annual wage

Average annual wage, Madison County, 2001 to 2025Average annual wage, Madison County, 2001 to 2025. Madison County: $19,369 in 2001, $43,825 in 2025.$0$20k$40k$60k20102020MadisonCountyDollarsAverage annual wage, Madison County, 2001 to 2025Average annual wage, Madison County, 2001 to 2025. Madison County: $19,369 in 2001, $43,825 in 2025.$0$20k$40k$60k20102020Madison CountyDollarsAverage annual wage, Madison County, 2001 to 2025Average annual wage, Madison County, 2001 to 2025. Madison County: $19,369 in 2001, $43,825 in 2025.$0$20k$40k$60k20052010201520202025Madison CountyDollars

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

Data table (25 rows)
PeriodMadison County (dollars)
2001$19,369
2002$20,815
2003$21,932
2004$23,000
2005$23,241
2006$24,510
2007$24,643
2008$25,663
2009$27,467
2010$27,836
2011$28,004
2012$28,867
2013$29,335
2014$29,457
2015$29,908
2016$29,276
2017$30,130
2018$30,834
2019$32,167
2020$34,311
2021$35,463
2022$37,979
2023$39,991
2024$42,345
2025$43,825

County officials

OfficeNameParty
Commissioner, District 1Brent MendenhallR
Commissioner, District 2Dustin ParkinsonR
Commissioner, District 3Todd SmithR
AssessorShawn BoiceR
ClerkKim MuirR
CoronerSam ButikoferR
ProsecutorRob H. WoodR
SheriffRon BallR
TreasurerAngie MoffatR

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

Representation

Legislative district

DistrictSenatorRepresentative, Seat ARepresentative, Seat B
34Doug Ricks (R)Jon O. Weber (R)Britt Raybould (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. 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 .