Kootenai County, Idaho Demographics
Population trends, housing costs, income, commuting, and health, all on one page.
Kootenai County, ID Population Density Map and Area Scores
Area Score
Health, income and education, each graded from F to A+. Explore interactive maps for deeper analysis.
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B
Health Around averageHealthier than 78% of counties in Idaho
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C
Income Below averageWealthier than 86% of counties in Idaho
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C
Education Below averageBetter educated than 79% of counties in Idaho
Source: Map AI Methodology
Population: density and quick facts
| Metric | Kootenai County | Idaho Avg | U.S. Average |
|---|---|---|---|
| Population | 181,718 | 1,929,983 | 337,468,954 |
| Population density (per sq mi) | 138.9 | 23.1 | 86.4 |
| Population growth (%/yr) | 2.62% | 2.12% | 0.59% |
| Median age | 41.9 | 38.7 | 37.3 |
| Households | 71,010 | 712,816 | 130,235,071 |
Population in Kootenai County grew by 36.2% from 2009 to 2024, reaching 181,718 in 2024.
Population Growth 2009–2024
Race & Ethnicity
Age & Sex
The largest generation in Kootenai County is Millennials, aged 29–44, at 20.4% of residents. That is 0.3 points below Idaho as a whole.
- Gen Z 13–28 35,520 19.5% -3.3 pts
- Millennials 29–44 37,045 20.4% -0.3 pts
- Gen X 45–60 36,710 20.2% +1.0 pts
- Boomers 61–79 34,700 19.1% +3.1 pts
Residents by birth cohort, from the 2025 age distribution. The right-hand figure is how far each cohort's share sits above or below Idaho, in percentage points. Children younger than Gen Z and the generations before the Boomers are counted in the population but not shown here, so these shares do not add up to 100%.
Male and female share
Women are 50.2% of the people living in Kootenai County and men 49.8%.
- Women 50.2% Idaho 49.6%
- Men 49.8% Idaho 50.4%
How many residents match a customer profile?
Residents matching this profile
100% of everyone living in Kootenai County
Pick an age range and a women/men split and the figure above answers with how many residents that profile reaches.
Economy
Kootenai County has a the economy index of C, which means it is somewhat prosperous.
| Metric | Kootenai County | Idaho Avg | U.S. Average |
|---|---|---|---|
| Median household income | $82,253 | $78,141 | $80,455 |
| Income growth (%/yr) | 6.14% | 5.97% | 4.80% |
| Unemployment rate | 3.3% | 3.7% | 5.2% |
The median household income in Kootenai County is about 5% higher than in Idaho.
Housing
| Metric | Kootenai County | Idaho Avg | U.S. Average |
|---|---|---|---|
| Median home price | $484,895 | $394,140 | $248,835 |
| Median rent | $1,491 | $1,236 | $1,407 |
| Homeownership rate | 71.3% | 72.3% | 65.2% |
The median home price in Kootenai County is about 27.1 years' worth of rent — buying at the median price costs roughly as much as paying the median rent of $1,491 per month for that long.
Commute Time & Mobility
Commuters in Kootenai County spend about 37 minutes on the road round trip each working day. Over a typical 250-day work year, that adds up to roughly 155 hours, about 6.5 full days, spent commuting.
| Metric | Kootenai County | Idaho Avg | U.S. Average |
|---|---|---|---|
| One-way commute (min) | 18.6 | 18.0 | 22.4 |
| Round-trip commute (min) | 37.3 | 35.9 | 44.8 |
| Yearly time spent (hours) | 155 | 150 | 187 |
| Estimated yearly cost | $4,812 | $4,641 | $5,790 |
| Work from home | 15.1% | 13.3% | 15.0% |
| Highway traffic (vehicles/day) | 5,779 | 4,714 | 8,813 |
| Local road traffic (vehicles/day) | 1,017 | 865 | 1,355 |
Fastest commutes among counties in
Idaho:
Custer County (8.9 min), Lemhi County (11.6 min), Madison County (12.0 min).
Slowest:
Camas County (49.5 min), Boise County (38.0 min), Lincoln County (32.0 min).
The average commute time in Kootenai County is 19 minutes, longer than the 18 minutes in Idaho.
Estimated yearly cost applies a single national wage rule of thumb (U.S. Bureau of Labor Statistics average hourly earnings), not a measurement of wages in this area. Traffic volume figures come from proprietary Ticon and TrafficZoom data.
Education & Households
Kootenai County has a education index of C, which means it is somewhat educated.
| Metric | Kootenai County | Idaho Avg | U.S. Average |
|---|---|---|---|
| Bachelor's degree or higher | 24.5% | 27.1% | 31.6% |
| Average household size | 2.53 | 2.64 | 2.53 |
Highest education index among counties in
Idaho:
Latah County (0.4), Teton County (0.3), Ada County (0.3).
Lowest:
Clark County (0.1), Owyhee County (0.2), Lincoln County (0.2).
Health
Kootenai County has a health index of B, which means it is quite healthy.
| Metric | Kootenai County | Idaho Avg | U.S. Average |
|---|---|---|---|
| Life expectancy (years) | 79.5 | 79.5 | 78.3 |
| Self-rated poor health | 13.3% | 15.6% | 16.3% |
| Smokers | 15.7% | 17.6% | 19.0% |
Highest health index among counties in
Idaho:
Madison County (0.8), Latah County (0.8), Ada County (0.8).
Lowest:
Shoshone County (0.8), Washington County (0.8), Lincoln County (0.8).
Kootenai County, ID Compared With Nearby Counties
Kootenai County, ID is the 2nd largest of the 4 counties compared here, 181,718 residents against a local median of 51,033. The measure that sets Kootenai County, ID apart most is median home price: $484,895, 58% above the local median of $307,459.
Median household income tells the same story from another angle: $82,253 against a local median of $67,293, 22% above it. The one measure here that carries a verdict is median household income, and at 22% above the local median it puts Kootenai County, ID at the better end of the local range. The counties themselves spread $573,927 on median home price, so Kootenai County, ID sits at one end of an already wide local range rather than apart from it. Kootenai County, ID has the 2nd highest median home price of the 4 areas compared here.
| Area | Population | Median household income | Median home price | Commute |
|---|---|---|---|---|
| Kootenai County, ID | 181,718 | $82,253 #1/4 | $484,895 #2/4 | 18.6 min #3/4 |
| Bonner County, ID | 51,033 | $67,293 | $879,683 | 17.9 min |
| Spokane County, WA | 548,846 | $78,612 | $305,756 | 20.5 min |
| Latah County, ID | 41,044 | $65,983 | $307,459 | 15.6 min |
Frequently Asked Questions
Common questions about Kootenai County, Idaho.
How many people live in Kootenai County, Idaho?
About 181,718 people live in Kootenai County, Idaho, in 71,010 households of 2.5 people on average. The median age is 41.9, so residents are older than the U.S. median of 37.3 by about 5 years.
Is Kootenai County, Idaho urban or rural?
Averaged over its land area, Kootenai County, Idaho has 139 people per square mile, a density typical of a mix of suburbs, small towns and farmland. That is about 1.6 times the U.S. average of 86.
Can a typical household afford a home in Kootenai County, Idaho?
The median home costs 5.9 times the median household income ($484,895 against $82,253), compared with 3.1 times nationally. A ratio of about 3 is traditionally considered affordable. Median rent of $1,491 a month takes about 22% of the median household's income, below the 30% level at which HUD considers renters cost-burdened.
Is it hard to find a job in Kootenai County, Idaho?
Unemployment in Kootenai County, Idaho is only 3.3%, well below the U.S. rate of 5.2%, a sign of a tight labor market where employers compete for workers.
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