Data / Rankings / Households / Counties in Idaho

Counties in Idaho by households

Ada County had the highest households of 44 counties in 2021, at 184,806. Clark County had the lowest, at 282. The median was 4,969 and the figure for Idaho was 657,101. Source: the U.S. Census Bureau.

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Highest184,806Ada County
Lowest282Clark County
Median4,96944 counties
Idaho657,101History

Map of counties, 2021

Ada County: 184,806 countAdams County: 1,687 countBannock County: 32,062 countBear Lake County: 2,231 countBenewah County: 3,566 countBingham County: 15,640 countBlaine County: 8,759 countBoise County: 3,277 countBonner County: 18,823 countBonneville County: 41,693 countBoundary County: 4,503 countButte County: 939 countCamas County: 335 countCanyon County: 76,711 countCaribou County: 2,470 countCassia County: 8,003 countClark County: 282 countClearwater County: 3,474 countCuster County: 1,716 countElmore County: 10,624 countFranklin County: 4,531 countFremont County: 4,288 countGem County: 6,943 countGooding County: 5,407 countIdaho County: 6,387 countJefferson County: 9,345 countJerome County: 7,916 countKootenai County: 64,914 countLatah County: 15,706 countLemhi County: 3,361 countLewis County: 1,556 countLincoln County: 1,798 countMadison County: 11,289 countMinidoka County: 7,363 countNez Perce County: 16,848 countOneida County: 1,760 countOwyhee County: 4,232 countPayette County: 9,272 countPower County: 2,697 countShoshone County: 5,431 countTeton County: 4,199 countTwin Falls County: 32,455 countValley County: 3,690 countWashington County: 4,112 count
  • Under 2,000
  • 2,000 to 4,000
  • 4,000 to 5,000
  • 5,000 to 9,000
  • 9,000 to 17K
  • 17K and over
count, 2021. Source: U.S. Census Bureau, American Community Survey 5-year estimates, table B25003: occupied housing units (households). Boundaries: U.S. Census Bureau cartographic boundary files.

All counties, 2021

Ada County: 184,806 countAda County184,806Canyon County: 76,711 countCanyon County76,711Kootenai County: 64,914 countKootenai County64,914Bonneville County: 41,693 countBonneville County41,693Twin Falls County: 32,455 countTwin Falls County32,455Bannock County: 32,062 countBannock County32,062Bonner County: 18,823 countBonner County18,823Nez Perce County: 16,848 countNez Perce County16,848Latah County: 15,706 countLatah County15,706Bingham County: 15,640 countBingham County15,640Madison County: 11,289 countMadison County11,289Elmore County: 10,624 countElmore County10,624Jefferson County: 9,345 countJefferson County9,345Payette County: 9,272 countPayette County9,272Blaine County: 8,759 countBlaine County8,759Cassia County: 8,003 countCassia County8,003Jerome County: 7,916 countJerome County7,916Minidoka County: 7,363 countMinidoka County7,363Gem County: 6,943 countGem County6,943Idaho County: 6,387 countIdaho County6,387Shoshone County: 5,431 countShoshone County5,431Gooding County: 5,407 countGooding County5,407Franklin County: 4,531 countFranklin County4,531Boundary County: 4,503 countBoundary County4,503Fremont County: 4,288 countFremont County4,288Owyhee County: 4,232 countOwyhee County4,232Teton County: 4,199 countTeton County4,199Washington County: 4,112 countWashington County4,112Valley County: 3,690 countValley County3,690Benewah County: 3,566 countBenewah County3,566Clearwater County: 3,474 countClearwater County3,474Lemhi County: 3,361 countLemhi County3,361Boise County: 3,277 countBoise County3,277Power County: 2,697 countPower County2,697Caribou County: 2,470 countCaribou County2,470Bear Lake County: 2,231 countBear Lake County2,231Lincoln County: 1,798 countLincoln County1,798Oneida County: 1,760 countOneida County1,760Custer County: 1,716 countCuster County1,716Adams County: 1,687 countAdams County1,687Lewis County: 1,556 countLewis County1,556Butte County: 939 countButte County939Camas County: 335 countCamas County335Clark County: 282 countClark County282Ada County: 184,806 countAda County184,806Canyon County: 76,711 countCanyon County76,711Kootenai County: 64,914 countKootenai County64,914Bonneville County: 41,693 countBonneville County41,693Twin Falls County: 32,455 countTwin Falls County32,455Bannock County: 32,062 countBannock County32,062Bonner County: 18,823 countBonner County18,823Nez Perce County: 16,848 countNez Perce County16,848Latah County: 15,706 countLatah County15,706Bingham County: 15,640 countBingham County15,640Madison County: 11,289 countMadison County11,289Elmore County: 10,624 countElmore County10,624Jefferson County: 9,345 countJefferson County9,345Payette County: 9,272 countPayette County9,272Blaine County: 8,759 countBlaine County8,759Cassia County: 8,003 countCassia County8,003Jerome County: 7,916 countJerome County7,916Minidoka County: 7,363 countMinidoka County7,363Gem County: 6,943 countGem County6,943Idaho County: 6,387 countIdaho County6,387Shoshone County: 5,431 countShoshone County5,431Gooding County: 5,407 countGooding County5,407Franklin County: 4,531 countFranklin County4,531Boundary County: 4,503 countBoundary County4,503Fremont County: 4,288 countFremont County4,288Owyhee County: 4,232 countOwyhee County4,232Teton County: 4,199 countTeton County4,199Washington County: 4,112 countWashington County4,112Valley County: 3,690 countValley County3,690Benewah County: 3,566 countBenewah County3,566Clearwater County: 3,474 countClearwater County3,474Lemhi County: 3,361 countLemhi County3,361Boise County: 3,277 countBoise County3,277Power County: 2,697 countPower County2,697Caribou County: 2,470 countCaribou County2,470Bear Lake County: 2,231 countBear Lake County2,231Lincoln County: 1,798 countLincoln County1,798Oneida County: 1,760 countOneida County1,760Custer County: 1,716 countCuster County1,716Adams County: 1,687 countAdams County1,687Lewis County: 1,556 countLewis County1,556Butte County: 939 countButte County939Camas County: 335 countCamas County335Clark County: 282 countClark County282
count. Source: U.S. Census Bureau, American Community Survey 5-year estimates, table B25003: occupied housing units (households). Retrieved 2026-10-12.

Full ranking

RankCounties2021
count
1Ada County184,806
2Canyon County76,711
3Kootenai County64,914
4Bonneville County41,693
5Twin Falls County32,455
6Bannock County32,062
7Bonner County18,823
8Nez Perce County16,848
9Latah County15,706
10Bingham County15,640
11Madison County11,289
12Elmore County10,624
13Jefferson County9,345
14Payette County9,272
15Blaine County8,759
16Cassia County8,003
17Jerome County7,916
18Minidoka County7,363
19Gem County6,943
20Idaho County6,387
21Shoshone County5,431
22Gooding County5,407
23Franklin County4,531
24Boundary County4,503
25Fremont County4,288
26Owyhee County4,232
27Teton County4,199
28Washington County4,112
29Valley County3,690
30Benewah County3,566
31Clearwater County3,474
32Lemhi County3,361
33Boise County3,277
34Power County2,697
35Caribou County2,470
36Bear Lake County2,231
37Lincoln County1,798
38Oneida County1,760
39Custer County1,716
40Adams County1,687
41Lewis County1,556
42Butte County939
43Camas County335
44Clark County282

Other periods

About this ranking

Number of households, which equals the number of occupied housing units. United States: American Community Survey five-year estimate, where the period shown is the last year of the five-year span.

People living in group quarters, such as college dormitories, nursing homes and prisons, are not in households.

Every value in the ranking comes from the same publisher and the same period, so the counties are compared on one definition. Equal values share a rank.

How to cite

U.S. Census Bureau. American Community Survey 5-year estimates, table B25003: occupied housing units (households). https://www2.census.gov/programs-surveys/acs/summary_file/2021/table-based-SF/data/5YRData/acsdt5y2021-b25003.dat. Retrieved 2026-10-12.

Citation styles

The publisher is the author. Invokely is named only as the place the figures were read, where a style asks for it.

APA 7

U.S. Census Bureau. (2026). American Community Survey 5-year estimates, table B25003: occupied housing units (households) (Counties in Idaho by households, 2021) [Data set]. Retrieved October 12, 2026, from https://www2.census.gov/programs-surveys/acs/summary_file/2021/table-based-SF/data/5YRData/acsdt5y2021-b25003.dat

MLA 9

American Community Survey 5-year estimates, table B25003: occupied housing units (households), Counties in Idaho by households, 2021. U.S. Census Bureau, 29 Jan. 2026, https://www2.census.gov/programs-surveys/acs/summary_file/2021/table-based-SF/data/5YRData/acsdt5y2021-b25003.dat. Invokely, https://invokely.ai/rankings/households/idaho-counties?period=2021. Accessed 12 Oct. 2026.

Chicago (author-date)

U.S. Census Bureau. 2026. American Community Survey 5-year estimates, table B25003: occupied housing units (households). Counties in Idaho by households, 2021. Dataset. Accessed October 12, 2026. https://www2.census.gov/programs-surveys/acs/summary_file/2021/table-based-SF/data/5YRData/acsdt5y2021-b25003.dat. Also distributed by Invokely, https://invokely.ai/rankings/households/idaho-counties?period=2021.

Harvard

U.S. Census Bureau (2026) American Community Survey 5-year estimates, table B25003: occupied housing units (households), Counties in Idaho by households, 2021 [Dataset]. Available at: https://www2.census.gov/programs-surveys/acs/summary_file/2021/table-based-SF/data/5YRData/acsdt5y2021-b25003.dat, via Invokely: https://invokely.ai/rankings/households/idaho-counties?period=2021 (Accessed: 12 October 2026).

BibTeX
@misc{census_counties_in_idaho_by_2021,
  author = {{U.S. Census Bureau}},
  title = {{American Community Survey 5-year estimates, table B25003: occupied housing units (households): Counties in Idaho by households, 2021}},
  year = {2026},
  howpublished = {Data set},
  url = {https://www2.census.gov/programs-surveys/acs/summary_file/2021/table-based-SF/data/5YRData/acsdt5y2021-b25003.dat},
  urldate = {2026-10-12},
  note = {Accessed via Invokely, https://invokely.ai/rankings/households/idaho-counties?period=2021. Publisher attribution: U.S. Census Bureau. American Community Survey 5-year estimates, table B25003: occupied housing units (households). https://www2.census.gov/programs-surveys/acs/summary\_file/2021/table-based-SF/data/5YRData/acsdt5y2021-b25003.dat. Retrieved 2026-10-12.},
}
RIS
TY  - DATA
AU  - U.S. Census Bureau
TI  - American Community Survey 5-year estimates, table B25003: occupied housing units (households): Counties in Idaho by households, 2021
PY  - 2026
DA  - 2026/01/29
PB  - U.S. Census Bureau
DB  - Invokely
UR  - https://www2.census.gov/programs-surveys/acs/summary_file/2021/table-based-SF/data/5YRData/acsdt5y2021-b25003.dat
L2  - https://invokely.ai/rankings/households/idaho-counties?period=2021
Y2  - 2026/10/12
N1  - Accessed via Invokely, https://invokely.ai/rankings/households/idaho-counties?period=2021.
N1  - Publisher attribution: U.S. Census Bureau. American Community Survey 5-year estimates, table B25003: occupied housing units (households). https://www2.census.gov/programs-surveys/acs/summary_file/2021/table-based-SF/data/5YRData/acsdt5y2021-b25003.dat. Retrieved 2026-10-12.
ER  -
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Questions

Which county has the highest households?

Ada County, with 184,806 in 2021, according to the U.S. Census Bureau.

Which county has the lowest households?

Clark County, with 282 in 2021.

Where does this ranking come from?

Every value comes from one source and one period, so the places are comparable: U.S. Census Bureau, American Community Survey 5-year estimates, table B25003: occupied housing units (households). Retrieved 2026-10-12.

Households: other rankings

Counties in Idaho: more rankings