RANKING · 2024 ACS · 41 SHOWN OF 41

Largest Vietnamese population, Iowa counties

Iowa counties ranked by the number of residents who are Vietnamese, from the 2024 American Community Survey detailed-origin tables. Each list covers the full eligible universe; download the complete data as CSV. This list covers the 41 counties in Iowa that qualify, ranked against each other statewide.

Vietnamese Americans: full group profile →

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SAME RANKING BYCities States Metros

RELATEDLargest Chinese population Highest Chinese population share Largest Taiwanese population Highest Taiwanese population share Largest Hmong population Highest Hmong population share

RANKPLACESTATEPOPVIETNAMESE POPULATIONVS 2020

01Polk County, IAIA516,5462,853−33%

02Johnson County, IAIA160,0441,059+6%

03Woodbury County, IAIA106,649935−21%

04Scott County, IAIA175,259692−45%

05Dallas County, IAIA118,457562+34%

06Jefferson County, IAIA15,291440+311%

07Black Hawk County, IAIA131,532404+461%

08Linn County, IAIA232,028356−32%

09Story County, IAIA101,291345−47%

10Marshall County, IAIA39,890212+19%

11Pottawattamie County, IAIA92,996112−48%

12Warren County, IAIA57,331108+4%

13Cerro Gordo County, IAIA42,37290−26%

14Henry County, IAIA19,34978−51%

15Hancock County, IAIA10,52875–

16Page County, IAIA14,85675–

17Dubuque County, IAIA99,38171−22%

18Hardin County, IAIA16,45554+5300%

19Jasper County, IAIA38,15339+86%

20Boone County, IAIA26,79923−8%

21Sioux County, IAIA36,77423–

22Muscatine County, IAIA41,85321–

23Lee County, IAIA32,30618−44%

24Plymouth County, IAIA25,69718−75%

25Poweshiek County, IAIA18,36817+89%

26Jackson County, IAIA19,28813–

27Kossuth County, IAIA14,32213+225%

28Winneshiek County, IAIA19,73312–

29Benton County, IAIA26,00411−27%

30Webster County, IAIA36,83810+0%

31Floyd County, IAIA14,9018–

32Bremer County, IAIA25,2966–

33Allamakee County, IAIA14,2385–

34Emmet County, IAIA9,1075–

35Keokuk County, IAIA9,7975–

36Palo Alto County, IAIA8,8995–

37Mitchell County, IAIA10,6503–

38Calhoun County, IAIA9,5623–

39Louisa County, IAIA10,4162+0%

40Grundy County, IAIA12,3611–

41Osceola County, IAIA5,9801–

SHOWING 1–41 OF 41

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UPDATED 2026-07-15 · DATA: US CENSUS BUREAU ACS 5-YEAR ESTIMATES