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. The median across all 41 is 0.1%. Biggest climber in the top 100 since 2020: Hardin County, IA, up 25 places to #12.

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

01▲6Jefferson County, IAIA15,2912.8%+2.2 pts

02▼1Woodbury County, IAIA106,6490.9%−0.3 pts

03Hancock County, IAIA10,5280.7%–

04▲2Johnson County, IAIA160,0440.7%0.0 pts

05▼3Polk County, IAIA516,5460.6%−0.3 pts

06▲4Marshall County, IAIA39,8900.5%+0.1 pts

07▲2Dallas County, IAIA118,4570.5%+0.1 pts

08Page County, IAIA14,8560.5%–

09▼5Scott County, IAIA175,2590.4%−0.3 pts

10▼7Henry County, IAIA19,3490.4%−0.4 pts

11▼6Story County, IAIA101,2910.3%−0.3 pts

12▲25Hardin County, IAIA16,4550.3%+0.3 pts

13▲16Black Hawk County, IAIA131,5320.3%+0.3 pts

14▼2Cerro Gordo County, IAIA42,3720.2%−0.1 pts

15▲3Warren County, IAIA57,3310.2%0.0 pts

16▼1Linn County, IAIA232,0280.2%−0.1 pts

17▼3Pottawattamie County, IAIA92,9960.1%−0.1 pts

18▲10Jasper County, IAIA38,1530.1%0.0 pts

19▲11Poweshiek County, IAIA18,3680.1%0.0 pts

20▲14Kossuth County, IAIA14,3220.1%+0.1 pts

21▲1Boone County, IAIA26,7990.1%0.0 pts

22▲2Dubuque County, IAIA99,3810.1%0.0 pts

23▼12Plymouth 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%–

28▼5Lee 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%–

33▼6Benton County, IAIA26,0040.0%0.0 pts

34Allamakee County, IAIA14,2380.0%–

35Calhoun County, IAIA9,5620.0%–

36Mitchell County, IAIA10,6500.0%–

37▼4Webster County, IAIA36,8380.0%0.0 pts

38Bremer County, IAIA25,2960.0%–

39▼3Louisa 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 2026-09-11 · DATA: US CENSUS BUREAU ACS 5-YEAR ESTIMATES