Counties in Idaho by employer firms

Ada County had the highest employer firms of 44 counties in 2018, at 10,622. Clark County had the lowest, at 9. The median was 339 and the figure for Idaho was 35,359. Source: the U.S. Census Bureau.

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Highest10,622Ada County
Median33944 counties
Idaho35,359History

Map of counties, 2018

Ada County: 10,622 countAdams County: 109 countBannock County: 1,680 countBear Lake County: 116 countBenewah County: 209 countBingham County: 722 countBlaine County: 1,215 countBoise County: 136 countBonner County: 1,334 countBonneville County: 2,896 countBoundary County: 318 countButte County: 46 countCamas County: 30 countCanyon County: 3,530 countCaribou County: 159 countCassia County: 572 countClark County: 9 countClearwater County: 202 countCuster County: 135 countElmore County: 431 countFranklin County: 260 countFremont County: 234 countGem County: 359 countGooding County: 310 countIdaho County: 421 countJefferson County: 439 countJerome County: 477 countKootenai County: 4,090 countLatah County: 802 countLemhi County: 248 countLewis County: 94 countLincoln County: 74 countMadison County: 725 countMinidoka County: 374 countNez Perce County: 935 countOneida County: 86 countOwyhee County: 155 countPayette County: 465 countPower County: 147 countShoshone County: 299 countTeton County: 412 countTwin Falls County: 2,139 countValley County: 499 countWashington County: 182 count
  • Under 100
  • 100 to 200
  • 200 to 300
  • 300 to 500
  • 500 to 1,200
  • 1,200 and over
count, 2018. Source: U.S. Census Bureau, Business Dynamics Statistics: employer firms, all covered industries, nation, states and counties. Boundaries: U.S. Census Bureau cartographic boundary files.

All counties, 2018

Ada County: 10,622 countAda County10,622Kootenai County: 4,090 countKootenai County4,090Canyon County: 3,530 countCanyon County3,530Bonneville County: 2,896 countBonneville County2,896Twin Falls County: 2,139 countTwin Falls County2,139Bannock County: 1,680 countBannock County1,680Bonner County: 1,334 countBonner County1,334Blaine County: 1,215 countBlaine County1,215Nez Perce County: 935 countNez Perce County935Latah County: 802 countLatah County802Madison County: 725 countMadison County725Bingham County: 722 countBingham County722Cassia County: 572 countCassia County572Valley County: 499 countValley County499Jerome County: 477 countJerome County477Payette County: 465 countPayette County465Jefferson County: 439 countJefferson County439Elmore County: 431 countElmore County431Idaho County: 421 countIdaho County421Teton County: 412 countTeton County412Minidoka County: 374 countMinidoka County374Gem County: 359 countGem County359Boundary County: 318 countBoundary County318Gooding County: 310 countGooding County310Shoshone County: 299 countShoshone County299Franklin County: 260 countFranklin County260Lemhi County: 248 countLemhi County248Fremont County: 234 countFremont County234Benewah County: 209 countBenewah County209Clearwater County: 202 countClearwater County202Washington County: 182 countWashington County182Caribou County: 159 countCaribou County159Owyhee County: 155 countOwyhee County155Power County: 147 countPower County147Boise County: 136 countBoise County136Custer County: 135 countCuster County135Bear Lake County: 116 countBear Lake County116Adams County: 109 countAdams County109Lewis County: 94 countLewis County94Oneida County: 86 countOneida County86Lincoln County: 74 countLincoln County74Butte County: 46 countButte County46Camas County: 30 countCamas County30Clark County: 9 countClark County9Ada County: 10,622 countAda County10,622Kootenai County: 4,090 countKootenai County4,090Canyon County: 3,530 countCanyon County3,530Bonneville County: 2,896 countBonneville County2,896Twin Falls County: 2,139 countTwin Falls County2,139Bannock County: 1,680 countBannock County1,680Bonner County: 1,334 countBonner County1,334Blaine County: 1,215 countBlaine County1,215Nez Perce County: 935 countNez Perce County935Latah County: 802 countLatah County802Madison County: 725 countMadison County725Bingham County: 722 countBingham County722Cassia County: 572 countCassia County572Valley County: 499 countValley County499Jerome County: 477 countJerome County477Payette County: 465 countPayette County465Jefferson County: 439 countJefferson County439Elmore County: 431 countElmore County431Idaho County: 421 countIdaho County421Teton County: 412 countTeton County412Minidoka County: 374 countMinidoka County374Gem County: 359 countGem County359Boundary County: 318 countBoundary County318Gooding County: 310 countGooding County310Shoshone County: 299 countShoshone County299Franklin County: 260 countFranklin County260Lemhi County: 248 countLemhi County248Fremont County: 234 countFremont County234Benewah County: 209 countBenewah County209Clearwater County: 202 countClearwater County202Washington County: 182 countWashington County182Caribou County: 159 countCaribou County159Owyhee County: 155 countOwyhee County155Power County: 147 countPower County147Boise County: 136 countBoise County136Custer County: 135 countCuster County135Bear Lake County: 116 countBear Lake County116Adams County: 109 countAdams County109Lewis County: 94 countLewis County94Oneida County: 86 countOneida County86Lincoln County: 74 countLincoln County74Butte County: 46 countButte County46Camas County: 30 countCamas County30Clark County: 9 countClark County9
count. Source: U.S. Census Bureau, Business Dynamics Statistics: employer firms, all covered industries, nation, states and counties. Retrieved 2026-10-11.

Full ranking

RankCounties2018
count
Change on 2017
1Ada County10,622+3.9%
2Kootenai County4,090+3.6%
3Canyon County3,530+7.6%
4Bonneville County2,896+3.1%
5Twin Falls County2,139+1.9%
6Bannock County1,680+0.6%
7Bonner County1,334+3.2%
8Blaine County1,215+3.4%
9Nez Perce County935-1.3%
10Latah County802+2%
11Madison County725+2.1%
12Bingham County722+2.4%
13Cassia County572+4.2%
14Valley County499+5.1%
15Jerome County477-1%
16Payette County465+6.2%
17Jefferson County439+6.6%
18Elmore County431+2.6%
19Idaho County421+5.5%
20Teton County412+8.4%
21Minidoka County374+2.7%
22Gem County359+6.2%
23Boundary County3180%
24Gooding County310+4.4%
25Shoshone County2990%
26Franklin County260-3%
27Lemhi County248-0.4%
28Fremont County234+4.9%
29Benewah County209+2.5%
30Clearwater County202-0.5%
31Washington County182+0.6%
32Caribou County159-2.5%
33Owyhee County155+5.4%
34Power County147+2.8%
35Boise County136+1.5%
36Custer County135+7.1%
37Bear Lake County116+4.5%
38Adams County109+3.8%
39Lewis County94-1.1%
40Oneida County86+6.2%
41Lincoln County74+1.4%
42Butte County46-8%
43Camas County30-3.2%
44Clark County90%

Other periods

About this ranking

Number of firms in the private nonfarm sectors covered by the US Census Bureau Business Dynamics Statistics. Establishments under common ownership form one firm.

Excludes nonemployer businesses. Differs from active_companies, the INE DIRCE count, which includes businesses without employees.

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. Business Dynamics Statistics: employer firms, all covered industries, nation, states and counties. https://www2.census.gov/programs-surveys/bds/tables/time-series/2023/bds2023_st_cty.csv. Retrieved 2026-10-11.

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. (2025). Business Dynamics Statistics: employer firms, all covered industries, nation, states and counties (Counties in Idaho by employer firms, 2018) [Data set]. Retrieved October 11, 2026, from https://www2.census.gov/programs-surveys/bds/tables/time-series/2023/bds2023_st_cty.csv

MLA 9

Business Dynamics Statistics: employer firms, all covered industries, nation, states and counties, Counties in Idaho by employer firms, 2018. U.S. Census Bureau, 25 Sept. 2025, https://www2.census.gov/programs-surveys/bds/tables/time-series/2023/bds2023_st_cty.csv. Invokely, https://invokely.ai/rankings/employer-firms/idaho-counties?period=2018. Accessed 11 Oct. 2026.

Chicago (author-date)

U.S. Census Bureau. 2025. Business Dynamics Statistics: employer firms, all covered industries, nation, states and counties. Counties in Idaho by employer firms, 2018. Dataset. Accessed October 11, 2026. https://www2.census.gov/programs-surveys/bds/tables/time-series/2023/bds2023_st_cty.csv. Also distributed by Invokely, https://invokely.ai/rankings/employer-firms/idaho-counties?period=2018.

Harvard

U.S. Census Bureau (2025) Business Dynamics Statistics: employer firms, all covered industries, nation, states and counties, Counties in Idaho by employer firms, 2018 [Dataset]. Available at: https://www2.census.gov/programs-surveys/bds/tables/time-series/2023/bds2023_st_cty.csv, via Invokely: https://invokely.ai/rankings/employer-firms/idaho-counties?period=2018 (Accessed: 11 October 2026).

BibTeX
@misc{census_counties_in_idaho_by_2018,
  author = {{U.S. Census Bureau}},
  title = {{Business Dynamics Statistics: employer firms, all covered industries, nation, states and counties: Counties in Idaho by employer firms, 2018}},
  year = {2025},
  howpublished = {Data set},
  url = {https://www2.census.gov/programs-surveys/bds/tables/time-series/2023/bds2023_st_cty.csv},
  urldate = {2026-10-11},
  note = {Accessed via Invokely, https://invokely.ai/rankings/employer-firms/idaho-counties?period=2018. Publisher attribution: U.S. Census Bureau. Business Dynamics Statistics: employer firms, all covered industries, nation, states and counties. https://www2.census.gov/programs-surveys/bds/tables/time-series/2023/bds2023\_st\_cty.csv. Retrieved 2026-10-11.},
}
RIS
TY  - DATA
AU  - U.S. Census Bureau
TI  - Business Dynamics Statistics: employer firms, all covered industries, nation, states and counties: Counties in Idaho by employer firms, 2018
PY  - 2025
DA  - 2025/09/25
PB  - U.S. Census Bureau
DB  - Invokely
UR  - https://www2.census.gov/programs-surveys/bds/tables/time-series/2023/bds2023_st_cty.csv
L2  - https://invokely.ai/rankings/employer-firms/idaho-counties?period=2018
Y2  - 2026/10/11
N1  - Accessed via Invokely, https://invokely.ai/rankings/employer-firms/idaho-counties?period=2018.
N1  - Publisher attribution: U.S. Census Bureau. Business Dynamics Statistics: employer firms, all covered industries, nation, states and counties. https://www2.census.gov/programs-surveys/bds/tables/time-series/2023/bds2023_st_cty.csv. Retrieved 2026-10-11.
ER  - 
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Questions

Which county has the highest employer firms?

Ada County, with 10,622 in 2018, according to the U.S. Census Bureau.

Which county has the lowest employer firms?

Clark County, with 9 in 2018.

Where does this ranking come from?

Every value comes from one source and one period, so the places are comparable: U.S. Census Bureau, Business Dynamics Statistics: employer firms, all covered industries, nation, states and counties. Retrieved 2026-10-11.

Employer firms: other rankings

Counties in Idaho: more rankings