Counties in Iowa by employer firms

Polk County had the highest employer firms of 99 counties in 2012, at 8,409. Adams County had the lowest, at 100. The median was 356 and the figure for Iowa was 56,139. Source: the U.S. Census Bureau.

Keep it in a collection in your library.
Highest8,409Polk County
Lowest100Adams County
Median35699 counties
Iowa56,139History

Map of counties, 2012

Adair County: 182 countAdams County: 100 countAllamakee County: 334 countAppanoose County: 276 countAudubon County: 155 countBenton County: 492 countBlack Hawk County: 2,456 countBoone County: 494 countBremer County: 538 countBuchanan County: 419 countBuena Vista County: 471 countButler County: 278 countCalhoun County: 245 countCarroll County: 739 countCass County: 416 countCedar County: 419 countCerro Gordo County: 1,151 countCherokee County: 315 countChickasaw County: 332 countClarke County: 171 countClay County: 538 countClayton County: 434 countClinton County: 970 countCrawford County: 391 countDallas County: 1,375 countDavis County: 141 countDecatur County: 124 countDelaware County: 435 countDes Moines County: 918 countDickinson County: 623 countDubuque County: 2,182 countEmmet County: 273 countFayette County: 481 countFloyd County: 343 countFranklin County: 273 countFremont County: 136 countGreene County: 229 countGrundy County: 263 countGuthrie County: 240 countHamilton County: 343 countHancock County: 246 countHardin County: 449 countHarrison County: 297 countHenry County: 448 countHoward County: 230 countHumboldt County: 269 countIda County: 223 countIowa County: 398 countJackson County: 460 countJasper County: 625 countJefferson County: 517 countJohnson County: 2,491 countJones County: 429 countKeokuk County: 195 countKossuth County: 456 countLee County: 772 countLinn County: 4,097 countLouisa County: 174 countLucas County: 157 countLyon County: 336 countMadison County: 305 countMahaska County: 482 countMarion County: 684 countMarshall County: 695 countMills County: 261 countMitchell County: 286 countMonona County: 204 countMonroe County: 163 countMontgomery County: 275 countMuscatine County: 766 countO'Brien County: 447 countOsceola County: 146 countPage County: 356 countPalo Alto County: 239 countPlymouth County: 591 countPocahontas County: 185 countPolk County: 8,409 countPottawattamie County: 1,598 countPoweshiek County: 467 countRinggold County: 113 countSac County: 287 countScott County: 3,508 countShelby County: 337 countSioux County: 1,006 countStory County: 1,610 countTama County: 281 countTaylor County: 115 countUnion County: 288 countVan Buren County: 130 countWapello County: 640 countWarren County: 627 countWashington County: 597 countWayne County: 119 countWebster County: 861 countWinnebago County: 287 countWinneshiek County: 524 countWoodbury County: 2,074 countWorth County: 155 countWright County: 325 count
  • Under 190
  • 190 to 280
  • 280 to 360
  • 360 to 480
  • 480 to 760
  • 760 and over
count, 2012. 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.

Top 40 counties, 2012

Polk County: 8,409 countPolk County8,409Linn County: 4,097 countLinn County4,097Scott County: 3,508 countScott County3,508Johnson County: 2,491 countJohnson County2,491Black Hawk County: 2,456 countBlack Hawk County2,456Dubuque County: 2,182 countDubuque County2,182Woodbury County: 2,074 countWoodbury County2,074Story County: 1,610 countStory County1,610Pottawattamie County: 1,598 countPottawattamie County1,598Dallas County: 1,375 countDallas County1,375Cerro Gordo County: 1,151 countCerro Gordo County1,151Sioux County: 1,006 countSioux County1,006Clinton County: 970 countClinton County970Des Moines County: 918 countDes Moines County918Webster County: 861 countWebster County861Lee County: 772 countLee County772Muscatine County: 766 countMuscatine County766Carroll County: 739 countCarroll County739Marshall County: 695 countMarshall County695Marion County: 684 countMarion County684Wapello County: 640 countWapello County640Warren County: 627 countWarren County627Jasper County: 625 countJasper County625Dickinson County: 623 countDickinson County623Washington County: 597 countWashington County597Plymouth County: 591 countPlymouth County591Bremer County: 538 countBremer County538Clay County: 538 countClay County538Winneshiek County: 524 countWinneshiek County524Jefferson County: 517 countJefferson County517Boone County: 494 countBoone County494Benton County: 492 countBenton County492Mahaska County: 482 countMahaska County482Fayette County: 481 countFayette County481Buena Vista County: 471 countBuena Vista County471Poweshiek County: 467 countPoweshiek County467Jackson County: 460 countJackson County460Kossuth County: 456 countKossuth County456Hardin County: 449 countHardin County449Henry County: 448 countHenry County448Polk County: 8,409 countPolk County8,409Linn County: 4,097 countLinn County4,097Scott County: 3,508 countScott County3,508Johnson County: 2,491 countJohnson County2,491Black Hawk County: 2,456 countBlack Hawk County2,456Dubuque County: 2,182 countDubuque County2,182Woodbury County: 2,074 countWoodbury County2,074Story County: 1,610 countStory County1,610Pottawattamie County: 1,598 countPottawattamie County1,598Dallas County: 1,375 countDallas County1,375Cerro Gordo County: 1,151 countCerro Gordo County1,151Sioux County: 1,006 countSioux County1,006Clinton County: 970 countClinton County970Des Moines County: 918 countDes Moines County918Webster County: 861 countWebster County861Lee County: 772 countLee County772Muscatine County: 766 countMuscatine County766Carroll County: 739 countCarroll County739Marshall County: 695 countMarshall County695Marion County: 684 countMarion County684Wapello County: 640 countWapello County640Warren County: 627 countWarren County627Jasper County: 625 countJasper County625Dickinson County: 623 countDickinson County623Washington County: 597 countWashington County597Plymouth County: 591 countPlymouth County591Bremer County: 538 countBremer County538Clay County: 538 countClay County538Winneshiek County: 524 countWinneshiek County524Jefferson County: 517 countJefferson County517Boone County: 494 countBoone County494Benton County: 492 countBenton County492Mahaska County: 482 countMahaska County482Fayette County: 481 countFayette County481Buena Vista County: 471 countBuena Vista County471Poweshiek County: 467 countPoweshiek County467Jackson County: 460 countJackson County460Kossuth County: 456 countKossuth County456Hardin County: 449 countHardin County449Henry County: 448 countHenry County448
count. Source: U.S. Census Bureau, Business Dynamics Statistics: employer firms, all covered industries, nation, states and counties. Retrieved 2026-10-11.

Full ranking

RankCounties2012
count
Change on 2011
1Polk County8,409-0.1%
2Linn County4,097+0.2%
3Scott County3,508+1.2%
4Johnson County2,491+0.3%
5Black Hawk County2,456-1.1%
6Dubuque County2,182+1.8%
7Woodbury County2,074+0.5%
8Story County1,610+0.1%
9Pottawattamie County1,598-0.3%
10Dallas County1,375+4.2%
11Cerro Gordo County1,151+1.9%
12Sioux County1,006+0.7%
13Clinton County970-1%
14Des Moines County918-0.5%
15Webster County861+0.2%
16Lee County772+1.2%
17Muscatine County766-1.8%
18Carroll County739+1%
19Marshall County695+0.6%
20Marion County684-0.6%
21Wapello County640-2.1%
22Warren County627-0.5%
23Jasper County625-2.3%
24Dickinson County623+2%
25Washington County597-0.8%
26Plymouth County591-1.2%
27Bremer County538+1.3%
27Clay County538-1.3%
29Winneshiek County524-0.4%
30Jefferson County517+6.6%
31Boone County494-2.8%
32Benton County492+4.7%
33Mahaska County482-0.4%
34Fayette County481-0.2%
35Buena Vista County471-1.5%
36Poweshiek County467-0.2%
37Jackson County460+0.4%
38Kossuth County456+1.6%
39Hardin County449+3.5%
40Henry County448+2.1%
41O'Brien County447-2.2%
42Delaware County435+2.1%
43Clayton County434+1.2%
44Jones County429+1.9%
45Buchanan County419-0.7%
45Cedar County419+3.2%
47Cass County416+1.7%
48Iowa County398+0.3%
49Crawford County391+2.9%
50Page County356-1.4%
51Floyd County343-0.6%
51Hamilton County343-1.2%
53Shelby County337+2.7%
54Lyon County336+0.6%
55Allamakee County334+0.9%
56Chickasaw County332+3.8%
57Wright County325+1.2%
58Cherokee County315+1.6%
59Madison County305+1%
60Harrison County297+3.8%
61Union County288-1.4%
62Sac County287+1.4%
62Winnebago County2870%
64Mitchell County2860%
65Tama County281-2.4%
66Butler County278+0.4%
67Appanoose County276-4.5%
68Montgomery County275-1.8%
69Emmet County273-0.7%
69Franklin County273+1.5%
71Humboldt County269-3.2%
72Grundy County263+1.9%
73Mills County261+0.8%
74Hancock County246-1.6%
75Calhoun County245+0.8%
76Guthrie County240-1.2%
77Palo Alto County239-1.6%
78Howard County230+0.4%
79Greene County229+2.7%
80Ida County223-1.3%
81Monona County204-2.9%
82Keokuk County195+1%
83Pocahontas County185-5.6%
84Adair County182+2.2%
85Louisa County174+0.6%
86Clarke County171-0.6%
87Monroe County163+1.9%
88Lucas County157-1.3%
89Audubon County155-1.3%
89Worth County155+0.6%
91Osceola County146-3.9%
92Davis County141-0.7%
93Fremont County1360%
94Van Buren County130+4.8%
95Decatur County124-3.1%
96Wayne County119-7%
97Taylor County115-0.9%
98Ringgold County113-1.7%
99Adams County100+3.1%

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 Iowa by employer firms, 2012) [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 Iowa by employer firms, 2012. 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/iowa-counties?period=2012. 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 Iowa by employer firms, 2012. 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/iowa-counties?period=2012.

Harvard

U.S. Census Bureau (2025) Business Dynamics Statistics: employer firms, all covered industries, nation, states and counties, Counties in Iowa by employer firms, 2012 [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/iowa-counties?period=2012 (Accessed: 11 October 2026).

BibTeX
@misc{census_counties_in_iowa_by_2012,
  author = {{U.S. Census Bureau}},
  title = {{Business Dynamics Statistics: employer firms, all covered industries, nation, states and counties: Counties in Iowa by employer firms, 2012}},
  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/iowa-counties?period=2012. 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 Iowa by employer firms, 2012
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/iowa-counties?period=2012
Y2  - 2026/10/11
N1  - Accessed via Invokely, https://invokely.ai/rankings/employer-firms/iowa-counties?period=2012.
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?

Polk County, with 8,409 in 2012, according to the U.S. Census Bureau.

Which county has the lowest employer firms?

Adams County, with 100 in 2012.

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 Iowa: more rankings