Population
17,874
2025
+7.7% since 2020
Source: U.S. Census Bureau, Population Estimates Program (Vintage 2025), 2025. Resident population, July 1 estimate.
Idaho County, ID: population growth, jobs and income
Idaho County gained 1 resident between 2024 and 2025 (+0.0%).
Idaho County had an estimated 17,874 residents in 2025, up 7.7% (1,282 more people) since 2020. That is slower than Idaho as a whole (+9.8%), and the 24th fastest growth of 43 counties in Idaho.
Data as of 2025 · updated
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In the Idaho County report
One-time $99 PDF: everything on this page for Idaho County, ranked against Idaho and the U.S., plus these figures that are not on the free page:
- Median gross rent$789/mo2020–24
- Vacant homes, incl. seasonal and second homes23.9%2020–24
- New homes permitted, last 12 months52025-10/2026-09
- Rent growth, 5 yearsIn the report
- Permits in 5+ unit buildingsIn the report
- IRS income moving in (net AGI)In the report
- Neighbouring-county comparison tableIn the report
What's inside: 5 pages
- 1 Summary, headline numbers and ranks (free preview)
- 2 Ranks and the neighbouring-county table
- 3 Migration, with IRS mover and income flows
- 4 Rent, vacant homes, permits and employers
- 5 Every source and the methods
Headline numbers
Net domestic migration
+48
2025
2.7 per 1,000 residents
+1,583 in total, 2021–2025
Source: U.S. Census Bureau, Population Estimates Program (Vintage 2025), 2025. People moving in from other U.S. counties minus people moving out.
Unemployment rate
5.0%
2025
+0.7 pts since 2019
Source: U.S. Bureau of Labor Statistics, Local Area Unemployment Statistics, 2025. Annual average unemployment rate.
New homes permitted
6
2025
0.3 per 1,000 residents
Small base: the change swings on a few homes or people, so we don't show it.
Source: U.S. Census Bureau, Building Permits Survey, 2025. Housing units authorized by building permits in the year.
Median household income
$66,325
2020–24
+47.5% since 2016–20
Source: U.S. Census Bureau, American Community Survey 5-year estimates, 2020–24. American Community Survey 5-year estimate.
Private-sector employment
3,643
2023
+7.0% since 2018
Source: U.S. Census Bureau, County Business Patterns, 2023. Paid employees of private employers in mid-March (County Business Patterns).
What the numbers say
Net domestic migration added 48 people in 2025: more people moved in from other U.S. counties than moved out.
Private employers had 3,643 paid employees in mid-March 2023, +7.0% since 2018 (County Business Patterns).
Unemployment averaged 5.0% in 2025, 0.7 points higher than in 2019 (before the pandemic).
Builders were authorized to start 6 new homes in 2025, or 0.3 per 1,000 residents.
Median household income was $66,325 in the 2020–24 American Community Survey, +47.5% since 2016–20.
Across the 3,107 U.S. counties with a comparable estimate, its population growth ranks 321st.
Get Idaho County’s next numbers by email
Email me when Idaho County gets new Census numbers: population, building permits, jobs and income. About 4 emails a year, one click to stop.
Idaho County population by year
| Year | Population | Change |
|---|---|---|
| 2025 | 17,874 | +1 |
| 2024 | 17,873 | −8 |
| 2023 | 17,881 | +227 |
| 2022 | 17,654 | +594 |
| 2021 | 17,060 | +468 |
| 2020 | 16,592 | – |
Census Bureau population estimates, July 1 of each year.
What drove the change in Idaho County
Idaho County grew by 1,282 people since 2020; the largest part came from domestic migration (+1,583).
| Component | 2025 | 2020–25 | Share |
|---|---|---|---|
| Natural changebirths minus deaths | −57 | −350 | |
| International migrationfrom and to other countries | +10 | +54 | |
| Domestic migrationfrom and to other U.S. counties | +48 | +1,583 | |
| Census adjustmentbalancing residual | +0 | −5 | |
| Total change | +1 | +1,282 |
Census Bureau population estimates, components of change, each year July 1 to June 30. The components add up to the change in the estimate; the Census adjustment is the small balancing figure the Bureau publishes.
How it ranks
| Measure | In Idaho | Among U.S. counties |
|---|---|---|
| Population growth | 24th of 43 | 321st of 3,107 |
| Net domestic migration per 1,000 residents | 28th of 43 | 1,442nd of 3,108 |
| Private-sector job growth | 37th of 43 | 978th of 3,092 |
| Median household income | 27th of 43 | 1,471st of 3,107 |
| Lowest unemployment rate | 37th of 43 | 2,498th of 3,108 |
| New homes permitted per 1,000 residents | 43rd of 43 | 2,543rd of 3,005 |
1st = highest (lowest for unemployment). Counties are ranked only against others with a figure for the same period.
Get the county report — $99
The County Growth and Demographics Report for Idaho County, ID as a PDF, from federal data: population and migration, housing and rents, permits, private employers and jobs, unemployment, ranks in the state and the country, and neighbouring counties, with a source next to every number. Pay once, no subscription.
Add 2 neighbouring counties for $50: the Missoula County and Ravalli County reports too, $149 for all 3.
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Neighbouring counties
Over 2020–25, Idaho County's population change (+7.7%) was ahead of 6 of its 9 neighbouring counties and behind 3.
5 of its 9 neighbouring counties had a higher median household income than Idaho County's $66,325 (2020–24).
| County | Population2025 | Population change2020–25 | Net domestic migration per 1,000 residents2025 | Homes permitted per 1,000 residents2025 | Median household income2020–24 |
|---|---|---|---|---|---|
| Idaho County, ID This county | 17,874 | +7.7% | 2.7 | 0.3 | $66,325 |
| Clearwater County, ID | 9,118 | +4.1% | 5.0 | 4.2 | $60,000 |
| Lewis County, ID | 3,704 | +4.8% | 5.4 | 11.1 | $51,615 |
| Valley County, ID | 12,831 | +8.4% | 0.5 | 20.9 | $76,078 |
| Nez Perce County, ID | 42,905 | +1.8% | 4.0 | 6.3 | $72,599 |
| Adams County, ID | 5,013 | +13.3% | 0.4 | 2.2 | $61,808 |
| Ravalli County, MT | 48,582 | +9.4% | 13.6 | 1.1 | $71,283 |
| Wallowa County, OR | 7,595 | +2.6% | 1.7 | 2.4 | $67,112 |
| Lemhi County, ID | 8,474 | +6.5% | 14.0 | 5.8 | $53,202 |
| Missoula County, MT | 123,513 | +4.4% | 6.2 | 7.2 | $75,598 |
Census Bureau population estimates and building permits, American Community Survey 5-year income. Rates per 1,000 residents. – means no figure, or a base too small for a change or rate (it would swing on a few people). A figure from another period shows its year and is left out of the comparison.
Questions
Is Idaho County growing?
Yes. Its population grew 7.7% between 2020 and 2025, about 1,282 more people (Census Bureau population estimates). Idaho as a whole changed +9.8% over the same years. That ranks 24th of 43 counties in Idaho for population growth.
How many people moved to Idaho County?
On net, about 48 people in 2025: that many more moved in from other U.S. counties than moved out (Census Bureau net domestic migration estimate).
What is the unemployment rate in Idaho County?
It averaged 5.0% in 2025 (BLS Local Area Unemployment Statistics, annual average).
What is the population of Idaho County?
About 17,874 people, according to the U.S. Census Bureau's population estimate for July 1, 2025.
How many jobs are in Idaho County?
Private employers there had 3,643 paid employees in mid-March 2023, +7.0% since 2018 (Census Bureau County Business Patterns; government jobs and the self-employed are not counted).
What Beacon CRE covers in Idaho
Map, parcel and listing layers cover North and South Carolina only for now. This page and the other Idaho county pages carry the public federal growth figures.
Idaho County data alerts
Email me when Idaho County gets new Census numbers: population, building permits, jobs and income. About 4 emails a year, one click to stop.
Sources and method
- U.S. Census Bureau, Population Estimates Program (Vintage 2025)
- U.S. Bureau of Labor Statistics, Local Area Unemployment Statistics
- U.S. Census Bureau, Building Permits Survey
- U.S. Census Bureau, American Community Survey 5-year estimates
- U.S. Census Bureau, County Business Patterns
Each number shows its own period. Changes compare the latest period with five years earlier (or the earliest period available). Beacon CRE last refreshed these figures on 2026-11-05. Figures come from public federal statistics and are informational only, not investment advice. Check the source before relying on a number. Methodology: how we compute every number. More on every layer: data sources and licences.
Jobs outside North and South Carolina use County Business Patterns (paid private-sector employees in mid-March); wages and government jobs are not included.