Counties in Iowa by employer firms

Polk County had the highest employer firms of 99 counties in 2016, at 8,931. Adams County had the lowest, at 90. The median was 358 and the figure for Iowa was 55,944. Source: the U.S. Census Bureau.

Keep it in a collection in your library.
Highest8,931Polk County
Lowest90Adams County
Median35899 counties
Iowa55,944History

Map of counties, 2016

Adair County: 190 countAdams County: 90 countAllamakee County: 312 countAppanoose County: 258 countAudubon County: 161 countBenton County: 474 countBlack Hawk County: 2,436 countBoone County: 499 countBremer County: 521 countBuchanan County: 407 countBuena Vista County: 476 countButler County: 268 countCalhoun County: 223 countCarroll County: 710 countCass County: 402 countCedar County: 404 countCerro Gordo County: 1,144 countCherokee County: 298 countChickasaw County: 327 countClarke County: 159 countClay County: 521 countClayton County: 430 countClinton County: 922 countCrawford County: 368 countDallas County: 1,548 countDavis County: 155 countDecatur County: 126 countDelaware County: 417 countDes Moines County: 899 countDickinson County: 629 countDubuque County: 2,172 countEmmet County: 261 countFayette County: 460 countFloyd County: 335 countFranklin County: 278 countFremont County: 133 countGreene County: 235 countGrundy County: 254 countGuthrie County: 229 countHamilton County: 341 countHancock County: 253 countHardin County: 459 countHarrison County: 299 countHenry County: 436 countHoward County: 222 countHumboldt County: 255 countIda County: 223 countIowa County: 391 countJackson County: 456 countJasper County: 622 countJefferson County: 529 countJohnson County: 2,595 countJones County: 403 countKeokuk County: 185 countKossuth County: 455 countLee County: 726 countLinn County: 4,129 countLouisa County: 173 countLucas County: 159 countLyon County: 332 countMadison County: 320 countMahaska County: 477 countMarion County: 683 countMarshall County: 662 countMills County: 260 countMitchell County: 282 countMonona County: 201 countMonroe County: 155 countMontgomery County: 267 countMuscatine County: 775 countO'Brien County: 442 countOsceola County: 156 countPage County: 358 countPalo Alto County: 249 countPlymouth County: 612 countPocahontas County: 184 countPolk County: 8,931 countPottawattamie County: 1,549 countPoweshiek County: 441 countRinggold County: 113 countSac County: 266 countScott County: 3,406 countShelby County: 335 countSioux County: 1,051 countStory County: 1,654 countTama County: 263 countTaylor County: 124 countUnion County: 286 countVan Buren County: 123 countWapello County: 643 countWarren County: 673 countWashington County: 584 countWayne County: 118 countWebster County: 826 countWinnebago County: 274 countWinneshiek County: 518 countWoodbury County: 2,079 countWorth County: 149 countWright County: 315 count
  • Under 190
  • 190 to 270
  • 270 to 360
  • 360 to 470
  • 470 to 720
  • 720 and over
count, 2016. 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, 2016

Polk County: 8,931 countPolk County8,931Linn County: 4,129 countLinn County4,129Scott County: 3,406 countScott County3,406Johnson County: 2,595 countJohnson County2,595Black Hawk County: 2,436 countBlack Hawk County2,436Dubuque County: 2,172 countDubuque County2,172Woodbury County: 2,079 countWoodbury County2,079Story County: 1,654 countStory County1,654Pottawattamie County: 1,549 countPottawattamie County1,549Dallas County: 1,548 countDallas County1,548Cerro Gordo County: 1,144 countCerro Gordo County1,144Sioux County: 1,051 countSioux County1,051Clinton County: 922 countClinton County922Des Moines County: 899 countDes Moines County899Webster County: 826 countWebster County826Muscatine County: 775 countMuscatine County775Lee County: 726 countLee County726Carroll County: 710 countCarroll County710Marion County: 683 countMarion County683Warren County: 673 countWarren County673Marshall County: 662 countMarshall County662Wapello County: 643 countWapello County643Dickinson County: 629 countDickinson County629Jasper County: 622 countJasper County622Plymouth County: 612 countPlymouth County612Washington County: 584 countWashington County584Jefferson County: 529 countJefferson County529Bremer County: 521 countBremer County521Clay County: 521 countClay County521Winneshiek County: 518 countWinneshiek County518Boone County: 499 countBoone County499Mahaska County: 477 countMahaska County477Buena Vista County: 476 countBuena Vista County476Benton County: 474 countBenton County474Fayette County: 460 countFayette County460Hardin County: 459 countHardin County459Jackson County: 456 countJackson County456Kossuth County: 455 countKossuth County455O'Brien County: 442 countO'Brien County442Poweshiek County: 441 countPoweshiek County441Polk County: 8,931 countPolk County8,931Linn County: 4,129 countLinn County4,129Scott County: 3,406 countScott County3,406Johnson County: 2,595 countJohnson County2,595Black Hawk County: 2,436 countBlack Hawk County2,436Dubuque County: 2,172 countDubuque County2,172Woodbury County: 2,079 countWoodbury County2,079Story County: 1,654 countStory County1,654Pottawattamie County: 1,549 countPottawattamie County1,549Dallas County: 1,548 countDallas County1,548Cerro Gordo County: 1,144 countCerro Gordo County1,144Sioux County: 1,051 countSioux County1,051Clinton County: 922 countClinton County922Des Moines County: 899 countDes Moines County899Webster County: 826 countWebster County826Muscatine County: 775 countMuscatine County775Lee County: 726 countLee County726Carroll County: 710 countCarroll County710Marion County: 683 countMarion County683Warren County: 673 countWarren County673Marshall County: 662 countMarshall County662Wapello County: 643 countWapello County643Dickinson County: 629 countDickinson County629Jasper County: 622 countJasper County622Plymouth County: 612 countPlymouth County612Washington County: 584 countWashington County584Jefferson County: 529 countJefferson County529Bremer County: 521 countBremer County521Clay County: 521 countClay County521Winneshiek County: 518 countWinneshiek County518Boone County: 499 countBoone County499Mahaska County: 477 countMahaska County477Buena Vista County: 476 countBuena Vista County476Benton County: 474 countBenton County474Fayette County: 460 countFayette County460Hardin County: 459 countHardin County459Jackson County: 456 countJackson County456Kossuth County: 455 countKossuth County455O'Brien County: 442 countO'Brien County442Poweshiek County: 441 countPoweshiek County441
count. Source: U.S. Census Bureau, Business Dynamics Statistics: employer firms, all covered industries, nation, states and counties. Retrieved 2026-10-11.

Full ranking

RankCounties2016
count
Change on 2015
1Polk County8,931+2.5%
2Linn County4,129+0.5%
3Scott County3,406-0.8%
4Johnson County2,595+0.5%
5Black Hawk County2,436+0.5%
6Dubuque County2,172+0.3%
7Woodbury County2,079-0.4%
8Story County1,654+0.6%
9Pottawattamie County1,549-0.6%
10Dallas County1,548+5.8%
11Cerro Gordo County1,144+2.7%
12Sioux County1,051+1%
13Clinton County922+0.2%
14Des Moines County899+1.1%
15Webster County826-1.1%
16Muscatine County775+0.4%
17Lee County726-2%
18Carroll County710-0.1%
19Marion County683+0.3%
20Warren County673+2.3%
21Marshall County662+1.2%
22Wapello County643+1.1%
23Dickinson County6290%
24Jasper County622+2.6%
25Plymouth County612+1.8%
26Washington County584-0.8%
27Jefferson County529-0.6%
28Bremer County521-0.4%
28Clay County521-1%
30Winneshiek County518-1%
31Boone County499-1.2%
32Mahaska County477-1.9%
33Buena Vista County476+1.9%
34Benton County474-0.2%
35Fayette County460-1.1%
36Hardin County459+2.9%
37Jackson County456+1.3%
38Kossuth County455+0.7%
39O'Brien County442-2.4%
40Poweshiek County441-2%
41Henry County436-1.6%
42Clayton County430+0.7%
43Delaware County417-1.4%
44Buchanan County407+1.8%
45Cedar County404+0.7%
46Jones County403-3.6%
47Cass County402-0.5%
48Iowa County391-3.2%
49Crawford County368-0.3%
50Page County358-3.8%
51Hamilton County341+1.8%
52Floyd County335+1.2%
52Shelby County335+3.4%
54Lyon County332-1.2%
55Chickasaw County327-0.6%
56Madison County320+6.7%
57Wright County3150%
58Allamakee County312+3%
59Harrison County299-1.6%
60Cherokee County2980%
61Union County286+2.1%
62Mitchell County282-0.4%
63Franklin County278+1.8%
64Winnebago County274-3.5%
65Butler County268-0.7%
66Montgomery County267-0.7%
67Sac County266-3.6%
68Tama County263-1.9%
69Emmet County261-1.1%
70Mills County260-1.5%
71Appanoose County258-4.1%
72Humboldt County255+0.8%
73Grundy County254-1.2%
74Hancock County253+1.6%
75Palo Alto County249+0.8%
76Greene County235+3.1%
77Guthrie County229-1.3%
78Calhoun County223-0.9%
78Ida County223-1.3%
80Howard County222+2.8%
81Monona County201-0.5%
82Adair County190+1.6%
83Keokuk County185-5.1%
84Pocahontas County184-2.6%
85Louisa County173+0.6%
86Audubon County161-2.4%
87Clarke County159-3%
87Lucas County159+0.6%
89Osceola County1560%
90Davis County155+4.7%
90Monroe County155+3.3%
92Worth County149-2%
93Fremont County133+6.4%
94Decatur County126-3.8%
95Taylor County124+2.5%
96Van Buren County123+0.8%
97Wayne County118+2.6%
98Ringgold County113-1.7%
99Adams County90-5.3%

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, 2016) [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, 2016. 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=2016. 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, 2016. 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=2016.

Harvard

U.S. Census Bureau (2025) Business Dynamics Statistics: employer firms, all covered industries, nation, states and counties, Counties in Iowa by employer firms, 2016 [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=2016 (Accessed: 11 October 2026).

BibTeX
@misc{census_counties_in_iowa_by_2016,
  author = {{U.S. Census Bureau}},
  title = {{Business Dynamics Statistics: employer firms, all covered industries, nation, states and counties: Counties in Iowa by employer firms, 2016}},
  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=2016. 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, 2016
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=2016
Y2  - 2026/10/11
N1  - Accessed via Invokely, https://invokely.ai/rankings/employer-firms/iowa-counties?period=2016.
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 8,931 in 2016, according to the U.S. Census Bureau.

Which county has the lowest employer firms?

Adams County, with 90 in 2016.

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