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Understand Idaho

Jefferson County, Idaho

FIPS 16051. Every indicator the site holds for Jefferson County, beside the statewide figure for the same period. Each row links to the page with the full history and source.

Indicators

MeasureJefferson CountyIdahoData periodSource
PopulationPeople35,2972,029,7332025 (estimate)Census Bureau
Population growth ratePercent1.3%1.4%2025 (estimate)Census Bureau
Domestic migrationPeople22419,9152025 (estimate)Census Bureau
Decennial census populationPeople30,8911,839,1062020Census Bureau
Median ageYears32.837.32020–2024 (estimate)Census Bureau
Median household incomeDollars$86,679$77,8002020–2024 (estimate)Census Bureau
Unemployment ratePercent2.9%3.7%2025 (estimate)BLS
Average annual wageDollars$44,405$62,3922025BLS
Covered employmentPeople8,326874,2832025BLS
Poverty ratePercent9.7%10.6%2020–2024 (estimate)Census Bureau
Median home valueDollars$408,400$418,6002020–2024 (estimate)Census Bureau
Median gross rentDollars$1,138$1,2382020–2024 (estimate)Census Bureau
Renters paying 30%+ of income on rentPercent28.3%46.9%2020–2024 (estimate)Census Bureau
Home value to income ratioRatio4.715.382020–2024 (estimate)Census Bureau
Homeownership ratePercent83.0%72.1%2020–2024 (estimate)Census Bureau
Housing unitsCount10,779795,0142020–2024 (estimate)Census Bureau
Group A offense ratePer 100,000 residents1,4813,166.522025 (preliminary)Idaho State Police
Irrigated landAcres143,4483,167,4992022USDA NASS
FarmsCount67922,8772022USDA NASS
Land in farmsAcres262,18011,547,9632022USDA NASS
Market value of agricultural products soldDollars$380,801,000$10,892,201,0002022USDA NASS
BirthsPeople42123,6952025 (estimate)Census Bureau
Population 65 and olderPercent11.9%17.0%2020–2024 (estimate)Census Bureau
Housing vacancy ratePercent5.4%10.3%2020–2024 (estimate)Census Bureau
Uninsured ratePercent7.8%9.1%2020–2024 (estimate)Census Bureau

Population

Population, Jefferson County, 2010 to 2025Population, Jefferson County, 2010 to 2025. Jefferson County: 26,223 in 2010, 35,297 in 2025.010k20k30k40k2010201520202025Jefferson CountyPeople

Source: U.S. Census Bureau, Population Estimates Program, Vintage 2025 (with Vintage 2019 for 2010-2019). Published May 14, 2026. Retrieved September 8, 2026.

Data table (16 rows)
PeriodJefferson County (people)
201026,223
201126,313
201226,641
201326,804
201426,944
201527,127
201627,830
201728,439
201829,405
201929,871
202031,080
202132,207
202233,358
202334,296
202434,856
202535,297

Unemployment rate

Unemployment rate, Jefferson County, 1990 to 2025Unemployment rate, Jefferson County, 1990 to 2025. Jefferson County: 5.1% in 1990, 2.9% in 2025.0.0%2.0%4.0%6.0%8.0%1990200020102020Jefferson CountyPercent

Source: U.S. Bureau of Labor Statistics, Local Area Unemployment Statistics. Published 2026. Retrieved September 8, 2026.

Data table (36 rows)
PeriodJefferson County (percent)
19905.1%
19915.5%
19926.1%
19935.3%
19945.4%
19955.2%
19964.9%
19974.3%
19984.4%
19994.3%
20003.7%
20013.9%
20024.1%
20033.9%
20043.8%
20053.3%
20063.0%
20072.4%
20083.7%
20097.3%
20107.1%
20117.0%
20126.4%
20135.8%
20143.7%
20153.2%
20162.9%
20172.4%
20182.2%
20192.2%
20203.4%
20212.6%
20222.3%
20232.5%
20242.9%
20252.9%

Average annual wage

Average annual wage, Jefferson County, 2001 to 2025Average annual wage, Jefferson County, 2001 to 2025. Jefferson County: $19,678 in 2001, $44,405 in 2025.$0$20k$40k$60k20052010201520202025Jefferson CountyDollars

Source: U.S. Bureau of Labor Statistics, Quarterly Census of Employment and Wages, annual averages. Published 2026. Retrieved September 8, 2026.

Data table (25 rows)
PeriodJefferson County (dollars)
2001$19,678
2002$20,996
2003$21,755
2004$21,900
2005$22,119
2006$22,573
2007$24,070
2008$24,894
2009$25,063
2010$25,092
2011$26,150
2012$26,714
2013$27,495
2014$28,037
2015$29,530
2016$30,616
2017$31,661
2018$32,931
2019$33,477
2020$35,008
2021$37,852
2022$41,374
2023$41,895
2024$46,365
2025$44,405