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. The median across all 41 is 23. Biggest climber in the top 100 since 2020: Hardin County, IA, up 19 places to #18.

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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%

02▲2Johnson County, IAIA160,0441,059+6%

03Woodbury County, IAIA106,649935−21%

04▼2Scott County, IAIA175,259692−45%

05▲2Dallas County, IAIA118,457562+34%

06▲7Jefferson County, IAIA15,291440+311%

07▲10Black Hawk County, IAIA131,532404+461%

08▼2Linn County, IAIA232,028356−32%

09▼4Story County, IAIA101,291345−47%

10▼1Marshall County, IAIA39,890212+19%

11▼3Pottawattamie County, IAIA92,996112−48%

12▲2Warren County, IAIA57,331108+4%

13▼2Cerro Gordo County, IAIA42,37290−26%

14▼4Henry County, IAIA19,34978−51%

15Hancock County, IAIA10,52875–

16Page County, IAIA14,85675–

17▼2Dubuque County, IAIA99,38171−22%

18▲19Hardin County, IAIA16,45554+5300%

19▲3Jasper County, IAIA38,15339+86%

20Boone County, IAIA26,79923−8%

21Sioux County, IAIA36,77423–

22Muscatine County, IAIA41,85321–

23▼4Lee County, IAIA32,30618−44%

24▼8Plymouth County, IAIA25,69718−75%

25▲4Poweshiek County, IAIA18,36817+89%

26Jackson County, IAIA19,28813–

27▲8Kossuth County, IAIA14,32213+225%

28Winneshiek County, IAIA19,73312–

29▼5Benton County, IAIA26,00411−27%

30▼3Webster County, IAIA36,838100%

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–

39▼3Louisa County, IAIA10,41620%

40Grundy County, IAIA12,3611–

41Osceola County, IAIA5,9801–

SHOWING 1–41 OF 41

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UPDATED 2026-09-11 · DATA: US CENSUS BUREAU ACS 5-YEAR ESTIMATES