RANKING · 2020 CENSUS · 27 SHOWN OF 27

Highest Chamorro population share, Iowa counties · 2020

Iowa counties ranked by the share of all residents who are Chamorro (2023 American Community Survey). A concentration measure: Chamorro residents as a percentage of total population. This list covers the 27 counties in Iowa that qualify, ranked against each other statewide.

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

Highest Chamorro population share by state

RANKPLACESTATEPOPCHAMORRO SHAREVS 2000

01Floyd County, IAIA14,9010.7%–

02Boone County, IAIA26,7990.3%–

03Buchanan County, IAIA20,8830.2%–

04Page County, IAIA14,8560.1%–

05Woodbury County, IAIA106,6490.1%–

06Henry County, IAIA19,3490.1%–

07Lyon County, IAIA12,3540.1%–

08Dubuque County, IAIA99,3810.0%–

09Black Hawk County, IAIA131,5320.0%–

10Linn County, IAIA232,0280.0%–

11Muscatine County, IAIA41,8530.0%–

12Guthrie County, IAIA10,7820.0%–

13Keokuk County, IAIA9,7970.0%–

14Audubon County, IAIA5,5090.0%–

15Sioux County, IAIA36,7740.0%–

16Jasper County, IAIA38,1530.0%–

17Warren County, IAIA57,3310.0%–

18Johnson County, IAIA160,0440.0%–

19Scott County, IAIA175,2590.0%–

20Decatur County, IAIA7,6550.0%–

21Cerro Gordo County, IAIA42,3720.0%–

22Story County, IAIA101,2910.0%–

23Mahaska County, IAIA21,8800.0%–

24Polk County, IAIA516,5460.0%–

25Kossuth County, IAIA14,3220.0%–

26Fayette County, IAIA19,0470.0%–

27Des Moines County, IAIA38,0770.0%–

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