RANKING · 2024 ACS · 41 SHOWN OF 41

Highest Vietnamese population share, Iowa counties

Iowa counties ranked by the share of all residents who are Vietnamese (2024 American Community Survey). A concentration measure: Vietnamese residents as a percentage of total population. 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 SHAREVS 2020

01Jefferson County, IAIA15,2912.8%+2.2 pts

02Woodbury County, IAIA106,6490.9%−0.3 pts

03Hancock County, IAIA10,5280.7%–

04Johnson County, IAIA160,0440.7%+0.0 pts

05Polk County, IAIA516,5460.6%−0.3 pts

06Marshall County, IAIA39,8900.5%+0.1 pts

07Dallas County, IAIA118,4570.5%+0.1 pts

08Page County, IAIA14,8560.5%–

09Scott County, IAIA175,2590.4%−0.3 pts

10Henry County, IAIA19,3490.4%−0.4 pts

11Story County, IAIA101,2910.3%−0.3 pts

12Hardin County, IAIA16,4550.3%+0.3 pts

13Black Hawk County, IAIA131,5320.3%+0.3 pts

14Cerro Gordo County, IAIA42,3720.2%−0.1 pts

15Warren County, IAIA57,3310.2%−0.0 pts

16Linn County, IAIA232,0280.2%−0.1 pts

17Pottawattamie County, IAIA92,9960.1%−0.1 pts

18Jasper County, IAIA38,1530.1%+0.0 pts

19Poweshiek County, IAIA18,3680.1%+0.0 pts

20Kossuth County, IAIA14,3220.1%+0.1 pts

21Boone County, IAIA26,7990.1%−0.0 pts

22Dubuque County, IAIA99,3810.1%−0.0 pts

23Plymouth County, IAIA25,6970.1%−0.2 pts

24Jackson County, IAIA19,2880.1%–

25Sioux County, IAIA36,7740.1%–

26Winneshiek County, IAIA19,7330.1%–

27Palo Alto County, IAIA8,8990.1%–

28Lee County, IAIA32,3060.1%−0.0 pts

29Emmet County, IAIA9,1070.1%–

30Floyd County, IAIA14,9010.1%–

31Keokuk County, IAIA9,7970.1%–

32Muscatine County, IAIA41,8530.0%–

33Benton County, IAIA26,0040.0%−0.0 pts

34Allamakee County, IAIA14,2380.0%–

35Calhoun County, IAIA9,5620.0%–

36Mitchell County, IAIA10,6500.0%–

37Webster County, IAIA36,8380.0%−0.0 pts

38Bremer County, IAIA25,2960.0%–

39Louisa County, IAIA10,4160.0%+0.0 pts

40Osceola County, IAIA5,9800.0%–

41Grundy County, IAIA12,3610.0%–

SHOWING 1–41 OF 41

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UPDATED 2026-08-08 · DATA: US CENSUS BUREAU ACS 5-YEAR ESTIMATES