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 (2020 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.

Native Hawaiians: full group profile →

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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 –

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 2026-07-15 · DATA: US CENSUS BUREAU DECENNIAL CENSUS