Counties in Iowa by employer firms

Polk County had the highest employer firms of 99 counties in 2015, at 8,712. Adams County had the lowest, at 95. The median was 369 and the figure for Iowa was 55,742. Source: the U.S. Census Bureau.

Keep it in a collection in your library.
Highest8,712Polk County
Lowest95Adams County
Median36999 counties
Iowa55,742History

Map of counties, 2015

Adair County: 187 countAdams County: 95 countAllamakee County: 303 countAppanoose County: 269 countAudubon County: 165 countBenton County: 475 countBlack Hawk County: 2,423 countBoone County: 505 countBremer County: 523 countBuchanan County: 400 countBuena Vista County: 467 countButler County: 270 countCalhoun County: 225 countCarroll County: 711 countCass County: 404 countCedar County: 401 countCerro Gordo County: 1,114 countCherokee County: 298 countChickasaw County: 329 countClarke County: 164 countClay County: 526 countClayton County: 427 countClinton County: 920 countCrawford County: 369 countDallas County: 1,463 countDavis County: 148 countDecatur County: 131 countDelaware County: 423 countDes Moines County: 889 countDickinson County: 629 countDubuque County: 2,166 countEmmet County: 264 countFayette County: 465 countFloyd County: 331 countFranklin County: 273 countFremont County: 125 countGreene County: 228 countGrundy County: 257 countGuthrie County: 232 countHamilton County: 335 countHancock County: 249 countHardin County: 446 countHarrison County: 304 countHenry County: 443 countHoward County: 216 countHumboldt County: 253 countIda County: 226 countIowa County: 404 countJackson County: 450 countJasper County: 606 countJefferson County: 532 countJohnson County: 2,582 countJones County: 418 countKeokuk County: 195 countKossuth County: 452 countLee County: 741 countLinn County: 4,109 countLouisa County: 172 countLucas County: 158 countLyon County: 336 countMadison County: 300 countMahaska County: 486 countMarion County: 681 countMarshall County: 654 countMills County: 264 countMitchell County: 283 countMonona County: 202 countMonroe County: 150 countMontgomery County: 269 countMuscatine County: 772 countO'Brien County: 453 countOsceola County: 156 countPage County: 372 countPalo Alto County: 247 countPlymouth County: 601 countPocahontas County: 189 countPolk County: 8,712 countPottawattamie County: 1,559 countPoweshiek County: 450 countRinggold County: 115 countSac County: 276 countScott County: 3,434 countShelby County: 324 countSioux County: 1,041 countStory County: 1,644 countTama County: 268 countTaylor County: 121 countUnion County: 280 countVan Buren County: 122 countWapello County: 636 countWarren County: 658 countWashington County: 589 countWayne County: 115 countWebster County: 835 countWinnebago County: 284 countWinneshiek County: 523 countWoodbury County: 2,088 countWorth County: 152 countWright County: 315 count
  • Under 190
  • 190 to 270
  • 270 to 370
  • 370 to 470
  • 470 to 730
  • 730 and over
count, 2015. 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, 2015

Polk County: 8,712 countPolk County8,712Linn County: 4,109 countLinn County4,109Scott County: 3,434 countScott County3,434Johnson County: 2,582 countJohnson County2,582Black Hawk County: 2,423 countBlack Hawk County2,423Dubuque County: 2,166 countDubuque County2,166Woodbury County: 2,088 countWoodbury County2,088Story County: 1,644 countStory County1,644Pottawattamie County: 1,559 countPottawattamie County1,559Dallas County: 1,463 countDallas County1,463Cerro Gordo County: 1,114 countCerro Gordo County1,114Sioux County: 1,041 countSioux County1,041Clinton County: 920 countClinton County920Des Moines County: 889 countDes Moines County889Webster County: 835 countWebster County835Muscatine County: 772 countMuscatine County772Lee County: 741 countLee County741Carroll County: 711 countCarroll County711Marion County: 681 countMarion County681Warren County: 658 countWarren County658Marshall County: 654 countMarshall County654Wapello County: 636 countWapello County636Dickinson County: 629 countDickinson County629Jasper County: 606 countJasper County606Plymouth County: 601 countPlymouth County601Washington County: 589 countWashington County589Jefferson County: 532 countJefferson County532Clay County: 526 countClay County526Bremer County: 523 countBremer County523Winneshiek County: 523 countWinneshiek County523Boone County: 505 countBoone County505Mahaska County: 486 countMahaska County486Benton County: 475 countBenton County475Buena Vista County: 467 countBuena Vista County467Fayette County: 465 countFayette County465O'Brien County: 453 countO'Brien County453Kossuth County: 452 countKossuth County452Jackson County: 450 countJackson County450Poweshiek County: 450 countPoweshiek County450Hardin County: 446 countHardin County446Polk County: 8,712 countPolk County8,712Linn County: 4,109 countLinn County4,109Scott County: 3,434 countScott County3,434Johnson County: 2,582 countJohnson County2,582Black Hawk County: 2,423 countBlack Hawk County2,423Dubuque County: 2,166 countDubuque County2,166Woodbury County: 2,088 countWoodbury County2,088Story County: 1,644 countStory County1,644Pottawattamie County: 1,559 countPottawattamie County1,559Dallas County: 1,463 countDallas County1,463Cerro Gordo County: 1,114 countCerro Gordo County1,114Sioux County: 1,041 countSioux County1,041Clinton County: 920 countClinton County920Des Moines County: 889 countDes Moines County889Webster County: 835 countWebster County835Muscatine County: 772 countMuscatine County772Lee County: 741 countLee County741Carroll County: 711 countCarroll County711Marion County: 681 countMarion County681Warren County: 658 countWarren County658Marshall County: 654 countMarshall County654Wapello County: 636 countWapello County636Dickinson County: 629 countDickinson County629Jasper County: 606 countJasper County606Plymouth County: 601 countPlymouth County601Washington County: 589 countWashington County589Jefferson County: 532 countJefferson County532Clay County: 526 countClay County526Bremer County: 523 countBremer County523Winneshiek County: 523 countWinneshiek County523Boone County: 505 countBoone County505Mahaska County: 486 countMahaska County486Benton County: 475 countBenton County475Buena Vista County: 467 countBuena Vista County467Fayette County: 465 countFayette County465O'Brien County: 453 countO'Brien County453Kossuth County: 452 countKossuth County452Jackson County: 450 countJackson County450Poweshiek County: 450 countPoweshiek County450Hardin County: 446 countHardin County446
count. Source: U.S. Census Bureau, Business Dynamics Statistics: employer firms, all covered industries, nation, states and counties. Retrieved 2026-10-11.

Full ranking

RankCounties2015
count
Change on 2014
1Polk County8,712+2.1%
2Linn County4,109-0.1%
3Scott County3,434+0.1%
4Johnson County2,582-0.3%
5Black Hawk County2,423-0.9%
6Dubuque County2,166+0.2%
7Woodbury County2,088+0.7%
8Story County1,644+1.9%
9Pottawattamie County1,559-0.6%
10Dallas County1,463+3.2%
11Cerro Gordo County1,114+0.3%
12Sioux County1,041+1.4%
13Clinton County920-2.4%
14Des Moines County8890%
15Webster County835-0.1%
16Muscatine County772-0.1%
17Lee County741-0.8%
18Carroll County711-0.1%
19Marion County681+0.9%
20Warren County658+0.5%
21Marshall County654-2.1%
22Wapello County636-0.2%
23Dickinson County629+2.1%
24Jasper County606+0.5%
25Plymouth County601+0.3%
26Washington County589-0.3%
27Jefferson County532+2.5%
28Clay County526-0.6%
29Bremer County523+0.2%
29Winneshiek County523+2.1%
31Boone County505+1.6%
32Mahaska County486-0.2%
33Benton County475-1.2%
34Buena Vista County467-1.5%
35Fayette County465-0.4%
36O'Brien County453+3%
37Kossuth County452-1.7%
38Jackson County450+1.4%
38Poweshiek County450+0.9%
40Hardin County446+4%
41Henry County443-0.2%
42Clayton County427+0.7%
43Delaware County423-0.9%
44Jones County418+1.5%
45Cass County404-0.2%
45Iowa County404+0.2%
47Cedar County401-3.8%
48Buchanan County4000%
49Page County372+2.5%
50Crawford County369-2.6%
51Lyon County336+0.3%
52Hamilton County335+2.1%
53Floyd County331+0.3%
54Chickasaw County329+0.3%
55Shelby County324-1.2%
56Wright County315-0.9%
57Harrison County304-0.7%
58Allamakee County303-1%
59Madison County300-0.3%
60Cherokee County298-1.3%
61Winnebago County284-0.7%
62Mitchell County283+0.7%
63Union County280+0.4%
64Sac County276-1.1%
65Franklin County2730%
66Butler County270+0.4%
67Appanoose County269+3.5%
67Montgomery County269-1.8%
69Tama County268-2.5%
70Emmet County2640%
70Mills County264+2.3%
72Grundy County257-4.1%
73Humboldt County253-1.9%
74Hancock County249+1.2%
75Palo Alto County247+4.2%
76Guthrie County232+1.3%
77Greene County228+0.9%
78Ida County226+7.6%
79Calhoun County225-0.9%
80Howard County216+0.5%
81Monona County2020%
82Keokuk County195+1.6%
83Pocahontas County189+2.2%
84Adair County187-1.1%
85Louisa County172+4.9%
86Audubon County165+1.2%
87Clarke County164-0.6%
88Lucas County158-2.5%
89Osceola County156+0.6%
90Worth County152+4.1%
91Monroe County1500%
92Davis County148+2.1%
93Decatur County131+4.8%
94Fremont County125-6.7%
95Van Buren County122+1.7%
96Taylor County121-3.2%
97Ringgold County1150%
97Wayne County1150%
99Adams County950%

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, 2015) [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, 2015. 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=2015. 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, 2015. 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=2015.

Harvard

U.S. Census Bureau (2025) Business Dynamics Statistics: employer firms, all covered industries, nation, states and counties, Counties in Iowa by employer firms, 2015 [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=2015 (Accessed: 11 October 2026).

BibTeX
@misc{census_counties_in_iowa_by_2015,
  author = {{U.S. Census Bureau}},
  title = {{Business Dynamics Statistics: employer firms, all covered industries, nation, states and counties: Counties in Iowa by employer firms, 2015}},
  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=2015. 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, 2015
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=2015
Y2  - 2026/10/11
N1  - Accessed via Invokely, https://invokely.ai/rankings/employer-firms/iowa-counties?period=2015.
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 8,712 in 2015, according to the U.S. Census Bureau.

Which county has the lowest employer firms?

Adams County, with 95 in 2015.

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