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Lewis County, Idaho

3L

Indicators

Population and growth

Source: Census Bureau.

MeasureLewis CountyIdahoData period
PopulationIdaho: 2,029,7332025 (estimate)3,7042,029,7332025 (estimate)
Population densityPeople per square mileIdaho: 24.62025 (estimate)7.724.62025 (estimate)
Population growth rateIdaho: 1.4%2025 (estimate)−0.2%1.4%2025 (estimate)
Domestic migrationIdaho: 19,9152025 (estimate)2019,9152025 (estimate)
Decennial census populationIdaho: 1,839,10620203,5331,839,1062020
Population by race and Hispanic origin: White alone, not Hispanic or LatinoIdaho: 1,519,4242020–2024 (estimate)3,0081,519,4242020–2024 (estimate)
Median ageYearsIdaho: 37.32020–2024 (estimate)49.037.32020–2024 (estimate)

Housing and cost of living

MeasureLewis CountyIdahoData periodSource
Median home valueIdaho: $418,6002020–2024 (estimate) · Census Bureau$225,300$418,6002020–2024 (estimate)Census Bureau
Median home purchase mortgage amountIdaho: $385,0002025 · CFPB$230,000$385,0002025CFPB
Median gross rentIdaho: $1,2382020–2024 (estimate) · Census Bureau$737$1,2382020–2024 (estimate)Census Bureau
Renters paying 30%+ of income on rentIdaho: 46.9%2020–2024 (estimate) · Census Bureau30.5%46.9%2020–2024 (estimate)Census Bureau
Housing units authorized by building permitsIdaho: 17,9442025 (estimate) · Census Bureau4117,9442025 (estimate)Census Bureau
Subsidized housing units availableIdaho: 12,9422025 · HUD8912,9422025HUD

Jobs, wages and economy

MeasureLewis CountyIdahoData periodSource
Median household incomeIdaho: $77,8002020–2024 (estimate) · Census Bureau$51,615$77,8002020–2024 (estimate)Census Bureau
Unemployment rateIdaho: 3.7%2025 (estimate) · BLS4.4%3.7%2025 (estimate)BLS
Average annual wageIdaho: $62,3922025 · BLS$44,584$62,3922025BLS
Covered employmentIdaho: 874,2832025 · BLS1,554874,2832025BLS
Business establishmentsIdaho: 58,1002023 · Census Bureau10958,1002023Census Bureau
Poverty rateIdaho: 10.6%2020–2024 (estimate) · Census Bureau15.3%10.6%2020–2024 (estimate)Census Bureau

Taxes, spending and government

MeasureLewis CountyIdahoData periodSource
Average property tax rate by county: UrbanIdaho: 0.680%2025 · Idaho Tax Commission1.315%0.680%2025Idaho Tax Commission
Ballots castIdaho: 719,1392026 (preliminary) · Idaho SOS1,471719,1392026 (preliminary)Idaho SOS
Registered votersIdaho: 1,030,522September 2026 · Idaho SOS2,2181,030,522September 2026Idaho SOS

Education

Data period 2024. Source: Idaho SDE.

MeasureLewis CountyIdaho
Public school enrollment by countyIdaho: n/a723n/a

Healthcare

Source: Census Bureau.

MeasureLewis CountyIdahoData period
BirthsIdaho: 23,6952025 (estimate)3123,6952025 (estimate)
Uninsured rateIdaho: 9.1%2020–2024 (estimate)11.1%9.1%2020–2024 (estimate)

Crime and public safety

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

MeasureLewis CountyIdaho
Group A offense ratePer 100,000 residentsIdaho: 3,1671,2163,167

Water

MeasureLewis CountyIdahoData periodSource
Drought Severity and Coverage IndexIndexIdaho: 222October 27, 2026 · NDMC274222October 27, 2026NDMC
Irrigated landAcresIdaho: 3,167,4992022 · USDA NASS3793,167,4992022USDA NASS
Total water withdrawalsAcre-feetIdaho: 19,868,1562015 (estimate) · USGS53,75619,868,1562015 (estimate)USGS
Livestock water withdrawalsAcre-feetIdaho: 61,4802022 (estimate) · USGS6561,4802022 (estimate)USGS
Industrial water withdrawalsAcre-feetIdaho: 14,2422020 (estimate) · USGS5314,2422020 (estimate)USGS

Public lands, agriculture and wildfire

MeasureLewis CountyIdahoData periodSource
FarmsIdaho: 22,8772022 · USDA NASS21922,8772022USDA NASS
Land in farmsAcresIdaho: 11,547,9632022 · USDA NASS249,01511,547,9632022USDA NASS
Market value of agricultural products soldIdaho: $10,892,201,0002022 · USDA NASS$76,489,000$10,892,201,0002022USDA NASS
Barley productionBushelsIdaho: 44,500,0002021 (estimate) · USDA NASS171,00044,500,0002021 (estimate)USDA NASS
Wildfires by countyIdaho: 1,5192025 · NIFC151,5192025NIFC

Transportation and infrastructure

MeasureLewis CountyIdahoData periodSource
Traffic deathsIdaho: 2382024 · NHTSA12382024NHTSA
Mean travel time to workMinutesIdaho: 21.62020–2024 (estimate) · Census Bureau21.421.62020–2024 (estimate)Census Bureau
County-maintained road milesMilesIdaho: 28,0122018 · ITD489.428,0122018ITD

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

County facts

County seat
Nez Perce
Established
Land area
479 sq mi, 7.7 per sq mi (2025)
Website
lewiscountyid.us

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

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

Population

Population, Lewis County, 2010 to 2025Population, Lewis County, 2010 to 2025. Lewis County: 3,820 in 2010, 3,704 in 2025.01,0002,0003,0004,00020102020PeoplePopulation, Lewis County, 2010 to 2025Population, Lewis County, 2010 to 2025. Lewis County: 3,820 in 2010, 3,704 in 2025.01,0002,0003,0004,0002010201520202025PeoplePopulation, Lewis County, 2010 to 2025Population, Lewis County, 2010 to 2025. Lewis County: 3,820 in 2010, 3,704 in 2025.01,0002,0003,0004,0002010201520202025People

Source: Census Bureau, Population Estimates Program.

Data table (16 rows)
PeriodLewis County (people)
20103,820
20113,806
20123,820
20133,805
20143,813
20153,791
20163,846
20173,884
20183,832
20193,838
20203,534
20213,704
20223,741
20233,743
20243,713
20253,704

Unemployment rate

Unemployment rate, Lewis County, 1990 to 2025Unemployment rate, Lewis County, 1990 to 2025. Lewis County: 7.8% in 1990, 4.4% in 2025.0.0%5.0%10.0%20002020PercentUnemployment rate, Lewis County, 1990 to 2025Unemployment rate, Lewis County, 1990 to 2025. Lewis County: 7.8% in 1990, 4.4% in 2025.0.0%5.0%10.0%1990200020102020PercentUnemployment rate, Lewis County, 1990 to 2025Unemployment rate, Lewis County, 1990 to 2025. Lewis County: 7.8% in 1990, 4.4% in 2025.0.0%5.0%10.0%1990200020102020Percent

Source: BLS, Local Area Unemployment Statistics.

Data table (36 rows)
PeriodLewis County (percent)
19907.8%
19917.2%
19926.6%
19938.3%
19946.7%
19957.1%
19967.3%
19977.5%
19987.8%
19996.5%
20006.5%
20017.2%
20026.3%
20034.4%
20043.9%
20053.5%
20062.7%
20072.6%
20083.8%
20096.3%
20106.8%
20116.3%
20125.7%
20135.7%
20144.1%
20155.4%
20166.6%
20176.1%
20185.7%
20195.6%
20208.7%
20216.2%
20224.5%
20233.9%
20244.3%
20254.4%

Average annual wage

Average annual wage, Lewis County, 2001 to 2025Average annual wage, Lewis County, 2001 to 2025. Lewis County: $19,642 in 2001, $44,584 in 2025.$0$20k$40k$60k20102020DollarsAverage annual wage, Lewis County, 2001 to 2025Average annual wage, Lewis County, 2001 to 2025. Lewis County: $19,642 in 2001, $44,584 in 2025.$0$20k$40k$60k20102020DollarsAverage annual wage, Lewis County, 2001 to 2025Average annual wage, Lewis County, 2001 to 2025. Lewis County: $19,642 in 2001, $44,584 in 2025.$0$20k$40k$60k20052010201520202025Dollars

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

Data table (25 rows)
PeriodLewis County (dollars)
2001$19,642
2002$20,211
2003$20,470
2004$21,084
2005$22,939
2006$23,300
2007$23,694
2008$24,298
2009$24,462
2010$25,287
2011$26,486
2012$27,262
2013$28,614
2014$29,821
2015$30,194
2016$30,768
2017$31,481
2018$31,954
2019$32,871
2020$34,871
2021$36,442
2022$38,351
2023$41,283
2024$43,504
2025$44,584

County officials

OfficeNameParty
Commissioner, District 1Greg JohnsonR
Commissioner, District 2Justin McLeodR
Commissioner, District 3Eric HasselstromR
AssessorJoann WatsonR
ClerkLisa WinnerD
CoronerBruce LongR
ProsecutorZachary PallI
SheriffJason DavisR
TreasurerShelley PonozzoR

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

Representation

Legislative district

DistrictSenatorRepresentative, Seat ARepresentative, Seat B
6Daniel D. Foreman (R)Lori Ann McCann (R)Brandon Mitchell (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.

Source: Idaho Legislature, Senate and House membership.

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

This page was last updated .