• county
  • FIPS 16055
  • Largest town: Coeur d'Alene

Kootenai County, Idaho

Kootenai County had 188,323 residents in the Census Vintage 2024 estimate, on 1,237.8 square miles of land. It ranks 3rd of 44 in Idaho by population and 24th by land area.

Population
188,323
#3 of 44 in Idaho · #373 in US
Area
1,237.8 sq mi
#24 of 44 in Idaho · #493 in US
Density
152 / sq mi
#3 of 44 in Idaho · #690 in US
Median household income
$75,235
#7 of 44 in Idaho · #657 in US

Census Vintage 2024 estimates · SAIPE 2023 income · 2024 Gazetteer land area

Kootenai County within Idaho. Pin: Boise.

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Kootenai County population, land area and income

Kootenai County had 188,323 residents in the Census Vintage 2024 estimate, on 1,237.8 square miles of land. It ranks 3rd of 44 in Idaho by population and 24th by land area. That works out to 152.1 people per square mile, 1.6 times the US average of 96.3, and in the top quarter nationally.

The median county-equivalent in Idaho has 15,019 residents, so Kootenai County is 12.5 times that size.

Its SAIPE 2023 median household income of $75,235 is in the top quarter among 3,143 counties with an estimate.

National rank among 3,144

Population

188,323

3144th1st

373rd of 3,144 (US)

Land area

1,238 sq mi

3144th1st

493rd of 3,144 (US)

Density

152.1 / sq mi

3144th1st

690th of 3,144 (US)

Median household income

$75,235

3143rd1st

657th of 3,143 (US)

Rank within Idaho (44)

Population

188,323

44th1st

3rd of 44 (ID)

Land area

1,238 sq mi

44th1st

24th of 44 (ID)

Density

152.1 / sq mi

44th1st

3rd of 44 (ID)

Median household income

$75,235

44th1st

7th of 44 (ID)

How Kootenai County's population changed since 2020

Kootenai County gained 15,532 residents between the July 2020 and July 2024 estimates, a rise of 9.0%. That ranks 14th of 44 in Idaho for growth. The median Idaho county changed by +7.2%, and the state as a whole by +8.2%.

Since the April 2020 estimates base, Kootenai County recorded 8,088 births and 7,764 deaths, a natural change of +324. Net international migration added +78 and net domestic migration, people moving to or from other US counties, came to +16,983. The largest single component was domestic migration, which added 16,983 people.

172.8k2020180.1k2021183.5k2022185.2k2023188.3k2024
Census Vintage 2024 county estimates for July 1 of each year. The axis starts above zero so year-to-year changes are visible.

Components of change, April 2020 to July 2024

Births
8,088
Deaths
7,764
Net international migration
+78
Net domestic migration
+16,983
Change, July 2023 to July 2024
+3,086

Where Kootenai County is

The Census internal point of Kootenai County is at 47.676000, -116.695900. It sits in UTM zone 11N. The map shades Idaho's 44 county-equivalents by population change from 2020 to 2024, darker for faster growth, with Kootenai County outlined. Dots are towns of 1,000+ people with residents in it.

Madison County: +5.0%Idaho County: +8.0%Benewah County: +9.9%Gooding County: +3.4%Lincoln County: +8.2%Minidoka County: +4.7%Custer County: +7.7%Boundary County: +15.6%Lemhi County: +5.5%Twin Falls County: +6.8%Franklin County: +9.5%Oneida County: +9.0%Gem County: +13.4%Shoshone County: +6.6%Fremont County: +7.3%Clearwater County: +4.6%Kootenai County: +9.0%Cassia County: +4.9%Blaine County: +3.8%Clark County: +0.1%Jerome County: +7.4%Bonner County: +13.8%Elmore County: +3.7%Caribou County: +3.2%Bonneville County: +7.1%Jefferson County: +12.1%Power County: +6.3%Lewis County: +5.8%Nez Perce County: +1.7%Ada County: +7.5%Adams County: +12.9%Valley County: +7.9%Bingham County: +5.8%Bannock County: +4.3%Owyhee County: +6.2%Washington County: +9.3%Latah County: +6.4%Teton County: +10.2%Camas County: +15.0%Boise County: +12.0%Bear Lake County: +6.5%Butte County: +5.9%Canyon County: +14.5%Payette County: +8.1%
Change 2020 to 2024
  1. < +4.7%
  2. < +6.4%
  3. < +7.7%
  4. < +9.9%
  5. ≥ +9.9%
no data

Orange pin: Kootenai County internal point. Dark pin: Boise.

Internal point

Decimal
47.676000, -116.695900
DMS
47°40'33.60"N 116°41'45.24"W
UTM
11N 522826.2E 5280334.8N
Geohash
c2mp0x0su
Plus code
85V5M8G3+CJ

Towns in Kootenai County

6 incorporated places of 1,000+ people have residents in Kootenai County, 137,668 people together, or 73% of the county. Each figure counts only the part of the town inside Kootenai County; towns marked "part" extend into another county. The largest is Coeur d'Alene with 57,355.

  1. 01Coeur d'Alene57,355
  2. 02Post Falls45,800
  3. 03Hayden16,924
  4. 04Rathdrum12,626
  5. 05Dalton Gardens2,498
  6. 06Spirit Lake2,465
Census Vintage 2024 subcounty estimates, county parts of incorporated places (SUMLEV 157).

Counties bordering Kootenai County

The Census 2024 county adjacency file lists 4 neighbors for Kootenai County, including 1 across a state line. The most populous is Spokane County, WA, with 555,947 residents. Distances run between Census internal points in a straight line.

Distance to Boise and the nearest big city

Boise is 281.3 miles S of Kootenai County's internal point in a straight line. The nearest place of 100,000 or more is Spokane Valley, WA (population 108,267), 25.0 miles away. The nearest place of 10,000 or more is Coeur d'Alene, ID (population 57,355), 5.0 miles away.

Kootenai County FIPS code

The FIPS code of Kootenai County is 16055: state code 16 for Idaho plus county code 055. Use it as text, with the leading zero, when joining Census, BLS, or CDC county tables. SAIPE lists its 2023 median household income as $75,235.

Questions people ask

What is the population of Kootenai County, Idaho?

The Census Vintage 2024 estimate for July 1, 2024 is 188,323. That is up 15,532 people (9.0%) from the July 2020 estimate of 172,791.

What is the FIPS code of Kootenai County?

16055. The first two digits (16) are Idaho; the last three (055) identify the county.

What is the largest town in Kootenai County?

Coeur d'Alene, with 57,355 residents inside Kootenai County in 2024.

Which counties border Kootenai County?

4 county-equivalents border it in the Census 2024 adjacency file: Spokane County, WA; Bonner County, ID; Shoshone County, ID; Benewah County, ID.

Sources and data as of

Data as of: Census Vintage 2024 population estimates, 2024 Gazetteer land area and internal points, SAIPE 2023 median household income.

  1. 01Census Vintage 2024 county population estimates
  2. 02Census 2024 Gazetteer, counties
  3. 03Census SAIPE 2023 state and county estimates
  4. 04Census Vintage 2024 subcounty population estimates
  5. 05Census 2024 county adjacency file
  6. 06Census 2024 cartographic boundary file, counties (1:5,000,000)

How every number is computed: methodology. Spotted a wrong figure? Report an error.