RANKING · 2020 CENSUS · 45 SHOWN OF 45

Highest Native Hawaiian population share, Iowa counties · 2020

Iowa counties ranked by the share of all residents who are Native Hawaiian (2023 American Community Survey). A concentration measure: Native Hawaiian residents as a percentage of total population. This list covers the 45 counties in Iowa that qualify, ranked against each other statewide.

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SAME RANKING BYCities States Metros

RELATEDLargest Native Hawaiian population Largest Samoan population Highest Samoan population share Largest Tongan population Highest Tongan population share Largest Chamorro population

RANKPLACESTATEPOPNATIVE HAWAIIAN SHAREVS 2000

01Warren County, IAIA57,3310.4%–

02Monona County, IAIA8,5390.4%–

03Lyon County, IAIA12,3540.3%–

04Grundy County, IAIA12,3610.3%–

05Buena Vista County, IAIA20,4490.3%–

06Woodbury County, IAIA106,6490.2%–

07Dallas County, IAIA118,4570.2%–

08Black Hawk County, IAIA131,5320.2%–

09Crawford County, IAIA16,2370.2%–

10Cerro Gordo County, IAIA42,3720.1%–

11Lee County, IAIA32,3060.1%–

12Henry County, IAIA19,3490.1%–

13Pocahontas County, IAIA6,8190.1%–

14Cass County, IAIA12,9600.1%–

15Wapello County, IAIA35,2100.1%–

16Cedar County, IAIA18,3590.1%–

17Madison County, IAIA17,2700.1%–

18Butler County, IAIA14,0490.1%–

19Muscatine County, IAIA41,8530.1%–

20Linn County, IAIA232,0280.1%–

21Johnson County, IAIA160,0440.1%–

22Scott County, IAIA175,2590.1%–

23Page County, IAIA14,8560.1%–

24Union County, IAIA11,8290.1%–

25Polk County, IAIA516,5460.1%–

26Osceola County, IAIA5,9800.0%–

27Guthrie County, IAIA10,7820.0%–

28Des Moines County, IAIA38,0770.0%–

29Dubuque County, IAIA99,3810.0%–

30Marion County, IAIA34,1920.0%–

31Winnebago County, IAIA10,2510.0%–

32Marshall County, IAIA39,8900.0%–

33Mahaska County, IAIA21,8800.0%–

34O'Brien County, IAIA14,2200.0%–

35Clinton County, IAIA46,0020.0%–

36Pottawattamie County, IAIA92,9960.0%–

37Mills County, IAIA14,7930.0%–

38Plymouth County, IAIA25,6970.0%–

39Keokuk County, IAIA9,7970.0%–

40Floyd County, IAIA14,9010.0%–

41Washington County, IAIA22,6670.0%–

42Hardin County, IAIA16,4550.0%–

43Webster County, IAIA36,8380.0%–

44Poweshiek County, IAIA18,3680.0%–

45Calhoun County, IAIA9,5620.0%–

SHOWING 1–45 OF 45

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UPDATED 2026-06-06 · DATA: US CENSUS BUREAU ACS 5-YEAR ESTIMATES