Demographics of Kootenai County, Idaho

Kootenai County, Idaho had 191,864 people on July 1, 2025, by the Census Bureau’s estimate: +19,067 since July 2020. Age, income, poverty, housing and origin below come from the American Community Survey, averaged over 2020–2024, each with its margin of error.

Kootenai County, in four figures

191,864
Population: July 1, 2025, Vintage 2025 estimate.; +11.0%
Change since July 2020: +19,067 people.; 40.9 ±0.3
Median age: ACS 2020–⁠2024.; $81,861 ±$2,371
Median household income: ACS 2020–⁠2024, in 2024 dollars.

Population, year by year

July 1 estimates from the Census Bureau’s Vintage 2025. Each year's change is births less deaths, net moves from abroad and net moves from elsewhere in the country, with the Bureau's small residual. The 2020 row's components run 3 months, from the April census to July 1.

Kootenai County, Idaho's population grew 11.0% from July 2020 to July 2025, against +3.1% nationally

The July 1 estimate of Kootenai County, Idaho's resident population and the nation's, each year of the Census Bureau's Vintage 2025, as a share of its July 2020 level (= 100).

Source: The Census Bureau

About this chart

The figures

Kootenai County, Idaho's population grew 11.0% from July 2020 to July 2025, against +3.1% nationally. The July 1 estimate of Kootenai County, Idaho's resident population and the nation's, each year of the Census Bureau's Vintage 2025, as a share of its July 2020 level (= 100).
July 1	Population	Index	United States
2020	172,797	100.0	100.0
2021	180,104	104.2	100.2
2022	183,512	106.2	100.7
2023	185,218	107.2	101.6
2024	188,398	109.0	102.5
2025	191,864	111.0	103.1

3 more columns on a wider screen

Population of Kootenai County, Idaho on July 1 of each year, Vintage 2025
July 1	Population	Change	Births less deaths	From abroad	From elsewhere in the country
2020	172,797	+1,431	+110	0	+1,450
2021	180,104	+7,307	+37	−37	+7,746
2022	183,512	+3,408	−38	+30	+3,304
2023	185,218	+1,706	+134	+11	+1,562
2024	188,398	+3,180	+336	−3	+2,826
2025	191,864	+3,466	+469	−139	+3,161

Age, 2020–2024

The median age is 40.9 ±0.3: for men 40.1 ±0.4 and for women 42.2 ±0.4. Shares are of everyone the survey counts, in the Bureau’s sex-by-age table (B01001).

2 more columns on a wider screen

People in Kootenai County by age, ACS 2020–2024
Age	People	Share	Idaho	United States
Under 5	9,882 ±135	5.4% ±0.1	5.9% ±<0.1	5.6% ±<0.1
5 to 17	30,774 ±1,128	16.9% ±0.6	18.2% ±0.2	16.3% ±<0.1
18 to 24	13,072 ±785	7.2% ±0.4	9.8% ±0.1	9.1% ±<0.1
25 to 44	46,665 ±1,071	25.6% ±0.6	26.1% ±0.2	26.9% ±<0.1
45 to 64	45,012 ±1,128	24.7% ±0.6	23.0% ±0.2	24.8% ±<0.1
65 and over	36,591 ±1,249	20.1% ±0.7	17.0% ±0.2	17.2% ±<0.1

Income and poverty, 2020–2024

Median household income is $81,861 ±$2,371, and income per person $40,981 ±$1,155, in 2024 dollars. The median is $77,800 ±$743 in Idaho and $80,734 ±$166 in the United States.

Households by income

2 more columns on a wider screen

Households in Kootenai County by income, ACS 2020–2024
Household income	Households	Share	Idaho	United States
Under $25,000	8,766 ±801	12.3% ±1.1	12.5% ±0.3	14.6% ±<0.1
$25,000 to $49,999	11,552 ±918	16.2% ±1.3	17.6% ±0.4	16.7% ±<0.1
$50,000 to $74,999	12,401 ±955	17.4% ±1.3	18.1% ±0.4	15.5% ±<0.1
$75,000 to $99,999	9,890 ±871	13.9% ±1.2	14.7% ±0.4	12.6% ±<0.1
$100,000 to $149,999	15,257 ±994	21.4% ±1.4	19.3% ±0.4	17.5% ±<0.1
$150,000 to $199,999	7,366 ±689	10.3% ±1.0	8.7% ±0.3	9.6% ±<0.1
$200,000 or more	5,940 ±642	8.3% ±0.9	9.2% ±0.3	13.4% ±0.1

Poverty by age

The poverty rate is the share of people whose family income is below the federal threshold for their family’s size, of everyone for whom the Bureau determines it (B17020).

2 more columns on a wider screen

Poverty rate in Kootenai County by age, ACS 2020–2024
Age	Below poverty	Rate	Idaho	United States
All ages	16,267 ±1,966	9.0% ±1.1	10.6% ±0.3	12.5% ±0.1
Under 18	4,398 ±696	11.0% ±1.7	12.4% ±0.5	16.1% ±0.1
18 to 59	8,091 ±1,074	8.9% ±1.2	10.4% ±0.3	11.6% ±0.1
60 and over	3,778 ±445	7.7% ±0.9	9.1% ±0.4	11.0% ±<0.1

Housing, 2020–2024

1 more column on a wider screen

Housing in Kootenai County, ACS 2020–2024
Measure	Kootenai County	Idaho	United States
Housing units	80,260 ±123	795,014 ±223	143,775,355 ±10,234
Occupied	88.7% ±1.0	89.7% ±0.3	89.9% ±0.1
Vacant	11.3% ±1.0	10.3% ±0.3	10.1% ±0.1
Owner occupied	71.3% ±1.4	72.1% ±0.4	65.2% ±0.3
Renter occupied	28.7% ±1.4	27.9% ±0.4	34.8% ±0.1
Median home value	$518,700 ±$17,761	$418,600 ±$2,550	$332,700 ±$236
Median gross rent	$1,492 ±$50	$1,238 ±$16	$1,413 ±$2
Median year built	1996 ±1	1991 ±1	1980 ±1

Occupied and vacant are shares of all housing units; owner and renter occupied are shares of occupied units. Value and rent are medians in 2024 dollars.

Origin and place of birth, 2020–2024

Hispanic or Latino origin is not a race in the Census Bureau’s tables. Here the people of Hispanic origin, of any race, are one row, and everyone else is counted by race alone (B03002), so the rows add to the whole.

Hispanic origin and race

2 more columns on a wider screen

People in Kootenai County by Hispanic origin and race, ACS 2020–2024
Origin	People	Share	Idaho	United States
Hispanic or Latino	10,298 ±0	5.7% ±<0.1	13.6% ±<0.1	19.3% ±<0.1
White alone, not Hispanic	155,815 ±1,416	85.6% ±0.8	78.6% ±0.1	57.4% ±<0.1
Black alone, not Hispanic	629 ±208	0.3% ±0.1	0.7% ±<0.1	11.9% ±<0.1
Asian alone, not Hispanic	1,224 ±209	0.7% ±0.1	1.3% ±<0.1	5.9% ±<0.1
American Indian and Alaska Native alone, not Hispanic	1,175 ±206	0.6% ±0.1	0.7% ±<0.1	0.5% ±<0.1
Native Hawaiian and Other Pacific Islander alone, not Hispanic	7 to 161	< 0.1% to 0.1%	0.1% ±<0.1	0.2% ±<0.1
Some other race alone, not Hispanic	1,452 ±706	0.8% ±0.4	0.6% ±0.1	0.6% ±<0.1
Two or more races, not Hispanic	11,319 ±1,179	6.2% ±0.6	4.2% ±0.1	4.3% ±<0.1

A range (the estimate less and plus its margin) where the Bureau's estimate is too uncertain to state as one number: a coefficient of variation over 30%.

Place of birth and citizenship

“Born a citizen outside the states” counts people born in Puerto Rico, the island areas, or abroad to American parents. Naturalized citizens and those who are not citizens together make up the people born abroad (B05002).

2 more columns on a wider screen

People in Kootenai County by place of birth and citizenship, ACS 2020–2024
Born	People	Share	Idaho	United States
Born in the state	54,262 ±2,045	29.8% ±1.1	43.9% ±0.3	57.3% ±<0.1
Born in another state	121,935 ±2,102	67.0% ±1.2	49.1% ±0.3	26.9% ±<0.1
Born a citizen outside the states	1,691 ±410	0.9% ±0.2	1.0% ±0.1	1.7% ±<0.1
Born abroad	4,108 ±513	2.3% ±0.3	5.9% ±0.2	14.1% ±<0.1
Naturalized citizens	2,776 ±405	1.5% ±0.2	2.7% ±0.1	7.4% ±<0.1
Not citizens	1,332 ±283	0.7% ±0.2	3.2% ±0.2	6.8% ±<0.1

Kootenai County among the counties of Idaho

3rd of 44 by population, July 2025. Every one is listed on the Idaho page.

Counties of Idaho near Kootenai County in population, July 2025
County	July 2025	Change since 2020
Ada County	546,141	+9.6%
Canyon County	275,123	+18.1%
Kootenai County	191,864	+11.0%
Bonneville County	135,771	+8.9%
Twin Falls County	97,539	+7.9%
Bannock County	91,591	+4.9%
Madison County	55,172	+4.2%
Bonner County	54,420	+14.8%

Elsewhere on the site

Rankings this appears in

No. 3 Counties by population in Idaho
No. 12 Counties by population growth in Idaho
No. 101 Counties by median home value
No. 179 Counties by median rent

Sources

Census Bureau population estimates — counties and Puerto Rico municipios, with components of change — U.S. Census Bureau · U.S. Government work · retrieved September 25, 2026
American Community Survey 5-year estimates — table-based Summary File · U.S. Government work

Compiled automatically from Census Bureau population estimates — counties and Puerto Rico municipios, with components of change and American Community Survey 5-year estimates — table-based Summary File by a checked SQL query · Editor: Kian O'Connor · How this site is built

Data retrieved September 25, 2026