Counties in Iowa by employer firm births

Polk County had the highest employer firm births of 99 counties in 2015, at 604. Guthrie County had the lowest, at 5. The median was 16 and the figure for Iowa was 3,235. Source: the U.S. Census Bureau.

Keep it in a collection in your library.
Highest604Polk County
Median1699 counties
Iowa3,235History

Map of counties, 2015

Adair County: 9 countAdams County: 7 countAllamakee County: 15 countAppanoose County: 17 countAudubon County: 8 countBenton County: 17 countBlack Hawk County: 104 countBoone County: 27 countBremer County: 29 countBuchanan County: 17 countBuena Vista County: 13 countButler County: 10 countCalhoun County: 7 countCarroll County: 28 countCass County: 16 countCedar County: 11 countCerro Gordo County: 43 countCherokee County: 10 countChickasaw County: 7 countClarke County: 7 countClay County: 21 countClayton County: 21 countClinton County: 39 countCrawford County: 18 countDallas County: 114 countDavis County: 11 countDecatur County: 12 countDelaware County: 24 countDes Moines County: 36 countDickinson County: 35 countDubuque County: 97 countEmmet County: 12 countFayette County: 10 countFloyd County: 14 countFranklin County: 17 countFremont County: 6 countGreene County: 14 countGrundy County: 9 countGuthrie County: 5 countHamilton County: 16 countHancock County: 9 countHardin County: 20 countHarrison County: 15 countHenry County: 16 countHoward County: 10 countHumboldt County: 8 countIda County: 16 countIowa County: 22 countJackson County: 26 countJasper County: 32 countJefferson County: 48 countJohnson County: 148 countJones County: 21 countKeokuk County: 11 countKossuth County: 19 countLee County: 30 countLinn County: 214 countLouisa County: 11 countLucas County: 7 countLyon County: 19 countMadison County: 15 countMahaska County: 19 countMarion County: 33 countMarshall County: 23 countMills County: 14 countMitchell County: 13 countMonona County: 7 countMonroe County: 7 countMontgomery County: 9 countMuscatine County: 34 countO'Brien County: 23 countOsceola County: 6 countPage County: 17 countPalo Alto County: 13 countPlymouth County: 21 countPocahontas County: 12 countPolk County: 604 countPottawattamie County: 87 countPoweshiek County: 22 countRinggold County: 6 countSac County: 10 countScott County: 175 countShelby County: 16 countSioux County: 40 countStory County: 84 countTama County: 8 countTaylor County: 6 countUnion County: 11 countVan Buren County: 10 countWapello County: 23 countWarren County: 41 countWashington County: 22 countWayne County: 9 countWebster County: 35 countWinnebago County: 11 countWinneshiek County: 20 countWoodbury County: 98 countWorth County: 7 countWright County: 15 count
  • Under 9
  • 9 to 12
  • 12 to 16
  • 16 to 21
  • 21 to 35
  • 35 and over
count, 2015. Source: U.S. Census Bureau, Business Dynamics Statistics by firm age: employer firms of age zero, all covered industries, nation, states and counties from 1978. Boundaries: U.S. Census Bureau cartographic boundary files.

Top 40 counties, 2015

Polk County: 604 countPolk County604Linn County: 214 countLinn County214Scott County: 175 countScott County175Johnson County: 148 countJohnson County148Dallas County: 114 countDallas County114Black Hawk County: 104 countBlack Hawk County104Woodbury County: 98 countWoodbury County98Dubuque County: 97 countDubuque County97Pottawattamie County: 87 countPottawattamie County87Story County: 84 countStory County84Jefferson County: 48 countJefferson County48Cerro Gordo County: 43 countCerro Gordo County43Warren County: 41 countWarren County41Sioux County: 40 countSioux County40Clinton County: 39 countClinton County39Des Moines County: 36 countDes Moines County36Dickinson County: 35 countDickinson County35Webster County: 35 countWebster County35Muscatine County: 34 countMuscatine County34Marion County: 33 countMarion County33Jasper County: 32 countJasper County32Lee County: 30 countLee County30Bremer County: 29 countBremer County29Carroll County: 28 countCarroll County28Boone County: 27 countBoone County27Jackson County: 26 countJackson County26Delaware County: 24 countDelaware County24Marshall County: 23 countMarshall County23O'Brien County: 23 countO'Brien County23Wapello County: 23 countWapello County23Iowa County: 22 countIowa County22Poweshiek County: 22 countPoweshiek County22Washington County: 22 countWashington County22Clay County: 21 countClay County21Clayton County: 21 countClayton County21Jones County: 21 countJones County21Plymouth County: 21 countPlymouth County21Hardin County: 20 countHardin County20Winneshiek County: 20 countWinneshiek County20Kossuth County: 19 countKossuth County19Polk County: 604 countPolk County604Linn County: 214 countLinn County214Scott County: 175 countScott County175Johnson County: 148 countJohnson County148Dallas County: 114 countDallas County114Black Hawk County: 104 countBlack Hawk County104Woodbury County: 98 countWoodbury County98Dubuque County: 97 countDubuque County97Pottawattamie County: 87 countPottawattamie County87Story County: 84 countStory County84Jefferson County: 48 countJefferson County48Cerro Gordo County: 43 countCerro Gordo County43Warren County: 41 countWarren County41Sioux County: 40 countSioux County40Clinton County: 39 countClinton County39Des Moines County: 36 countDes Moines County36Dickinson County: 35 countDickinson County35Webster County: 35 countWebster County35Muscatine County: 34 countMuscatine County34Marion County: 33 countMarion County33Jasper County: 32 countJasper County32Lee County: 30 countLee County30Bremer County: 29 countBremer County29Carroll County: 28 countCarroll County28Boone County: 27 countBoone County27Jackson County: 26 countJackson County26Delaware County: 24 countDelaware County24Marshall County: 23 countMarshall County23O'Brien County: 23 countO'Brien County23Wapello County: 23 countWapello County23Iowa County: 22 countIowa County22Poweshiek County: 22 countPoweshiek County22Washington County: 22 countWashington County22Clay County: 21 countClay County21Clayton County: 21 countClayton County21Jones County: 21 countJones County21Plymouth County: 21 countPlymouth County21Hardin County: 20 countHardin County20Winneshiek County: 20 countWinneshiek County20Kossuth County: 19 countKossuth County19
count. Source: U.S. Census Bureau, Business Dynamics Statistics by firm age: employer firms of age zero, all covered industries, nation, states and counties from 1978. Retrieved 2026-10-22.

Full ranking

RankCounties2015
count
Change on 2014
1Polk County604+4.9%
2Linn County214+2.9%
3Scott County175+13.6%
4Johnson County148-6.9%
5Dallas County114+20%
6Black Hawk County104-16.1%
7Woodbury County98+34.2%
8Dubuque County97+5.4%
9Pottawattamie County87+8.8%
10Story County84-1.2%
11Jefferson County48+50%
12Cerro Gordo County43+19.4%
13Warren County41+2.5%
14Sioux County40-23.1%
15Clinton County39-13.3%
16Des Moines County36+2.9%
17Dickinson County35-7.9%
17Webster County35-7.9%
19Muscatine County34+3%
20Marion County33-17.5%
21Jasper County32+60%
22Lee County30-3.2%
23Bremer County29+20.8%
24Carroll County28+3.7%
25Boone County27+35%
26Jackson County26+52.9%
27Delaware County24+118.2%
28Marshall County230%
28O'Brien County23+35.3%
28Wapello County23-11.5%
31Iowa County22+46.7%
31Poweshiek County22-8.3%
31Washington County22+15.8%
34Clay County21-19.2%
34Clayton County210%
34Jones County21+90.9%
34Plymouth County21-8.7%
38Hardin County20+42.9%
38Winneshiek County200%
40Kossuth County19-24%
40Lyon County19+46.2%
40Mahaska County19-26.9%
43Crawford County18+20%
44Appanoose County17+88.9%
44Benton County17+6.3%
44Buchanan County17+13.3%
44Franklin County17+13.3%
44Page County17-10.5%
49Cass County16+45.5%
49Hamilton County16+23.1%
49Henry County16+14.3%
49Ida County16+220%
49Shelby County16+23.1%
54Allamakee County15+114.3%
54Harrison County15-25%
54Madison County15+7.1%
54Wright County15-16.7%
58Floyd County14+55.6%
58Greene County14+55.6%
58Mills County14+75%
61Buena Vista County13-35%
61Mitchell County13-38.1%
61Palo Alto County13+116.7%
64Decatur County12+20%
64Emmet County12+33.3%
64Pocahontas County12+200%
67Cedar County11-45%
67Davis County11+175%
67Keokuk County11+37.5%
67Louisa County11+120%
67Union County11+22.2%
67Winnebago County11+22.2%
73Butler County10+25%
73Cherokee County10+25%
73Fayette County10-44.4%
73Howard County10+100%
73Sac County10-23.1%
73Van Buren County10+66.7%
79Adair County9+28.6%
79Grundy County9-43.8%
79Hancock County9-18.2%
79Montgomery County9+12.5%
79Wayne County9-10%
84Audubon County8-11.1%
84Humboldt County8-42.9%
84Tama County8-27.3%
87Adams County7+40%
87Calhoun County7+75%
87Chickasaw County7-46.2%
87Clarke County7-22.2%
87Lucas County70%
87Monona County7+40%
87Monroe County7+75%
87Worth County7n/a
95Fremont County6-50%
95Osceola County6-25%
95Ringgold County6+50%
95Taylor County6-45.5%
99Guthrie County5-58.3%

Other periods

About this ranking

New employer firms: firms of age zero in March of the year, meaning that every establishment of the firm had its first employees during the previous twelve months. United States: Census Bureau Business Dynamics Statistics, which calls these firms startups.

A firm counts only when it has employees, so a business without staff is not a birth, and a new branch, merger or change of ownership of an existing firm is not a birth either. Not the same as business_applications (requests for an employer number) or enterprise_births (European business demography). The year is the twelve months to March: 2023 compares March 2022 with March 2023.

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 by firm age: employer firms of age zero, all covered industries, nation, states and counties from 1978. https://www2.census.gov/programs-surveys/bds/tables/time-series/2023/bds2023_st_cty_fac.csv. Retrieved 2026-10-22.

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 by firm age: employer firms of age zero, all covered industries, nation, states and counties from 1978 (Counties in Iowa by employer firm births, 2015) [Data set]. Retrieved October 22, 2026, from https://www2.census.gov/programs-surveys/bds/tables/time-series/2023/bds2023_st_cty_fac.csv

MLA 9

Business Dynamics Statistics by firm age: employer firms of age zero, all covered industries, nation, states and counties from 1978, Counties in Iowa by employer firm births, 2015. U.S. Census Bureau, 25 Sept. 2025, https://www2.census.gov/programs-surveys/bds/tables/time-series/2023/bds2023_st_cty_fac.csv. Invokely, https://invokely.ai/rankings/employer-firm-births/iowa-counties?period=2015. Accessed 22 Oct. 2026.

Chicago (author-date)

U.S. Census Bureau. 2025. Business Dynamics Statistics by firm age: employer firms of age zero, all covered industries, nation, states and counties from 1978. Counties in Iowa by employer firm births, 2015. Dataset. Accessed October 22, 2026. https://www2.census.gov/programs-surveys/bds/tables/time-series/2023/bds2023_st_cty_fac.csv. Also distributed by Invokely, https://invokely.ai/rankings/employer-firm-births/iowa-counties?period=2015.

Harvard

U.S. Census Bureau (2025) Business Dynamics Statistics by firm age: employer firms of age zero, all covered industries, nation, states and counties from 1978, Counties in Iowa by employer firm births, 2015 [Dataset]. Available at: https://www2.census.gov/programs-surveys/bds/tables/time-series/2023/bds2023_st_cty_fac.csv, via Invokely: https://invokely.ai/rankings/employer-firm-births/iowa-counties?period=2015 (Accessed: 22 October 2026).

BibTeX
@misc{census_counties_in_iowa_by_2015,
  author = {{U.S. Census Bureau}},
  title = {{Business Dynamics Statistics by firm age: employer firms of age zero, all covered industries, nation, states and counties from 1978: Counties in Iowa by employer firm births, 2015}},
  year = {2025},
  howpublished = {Data set},
  url = {https://www2.census.gov/programs-surveys/bds/tables/time-series/2023/bds2023_st_cty_fac.csv},
  urldate = {2026-10-22},
  note = {Accessed via Invokely, https://invokely.ai/rankings/employer-firm-births/iowa-counties?period=2015. Publisher attribution: U.S. Census Bureau. Business Dynamics Statistics by firm age: employer firms of age zero, all covered industries, nation, states and counties from 1978. https://www2.census.gov/programs-surveys/bds/tables/time-series/2023/bds2023\_st\_cty\_fac.csv. Retrieved 2026-10-22.},
}
RIS
TY  - DATA
AU  - U.S. Census Bureau
TI  - Business Dynamics Statistics by firm age: employer firms of age zero, all covered industries, nation, states and counties from 1978: Counties in Iowa by employer firm births, 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_fac.csv
L2  - https://invokely.ai/rankings/employer-firm-births/iowa-counties?period=2015
Y2  - 2026/10/22
N1  - Accessed via Invokely, https://invokely.ai/rankings/employer-firm-births/iowa-counties?period=2015.
N1  - Publisher attribution: U.S. Census Bureau. Business Dynamics Statistics by firm age: employer firms of age zero, all covered industries, nation, states and counties from 1978. https://www2.census.gov/programs-surveys/bds/tables/time-series/2023/bds2023_st_cty_fac.csv. Retrieved 2026-10-22.
ER  - 
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Rank Counties in Iowa by employer firm births using official data, and cite the source.
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Questions

Which county has the highest employer firm births?

Polk County, with 604 in 2015, according to the U.S. Census Bureau.

Which county has the lowest employer firm births?

Guthrie County, with 5 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 by firm age: employer firms of age zero, all covered industries, nation, states and counties from 1978. Retrieved 2026-10-22.

Employer firm births: other rankings

Counties in Iowa: more rankings