RANKING · 2024 ACS · 20 SHOWN OF 20

Highest Chamorro population share, Iowa counties

Iowa counties ranked by the share of all residents who are Chamorro (2024 American Community Survey). A concentration measure: Chamorro residents as a percentage of total population. This list covers the 20 counties in Iowa that qualify, ranked against each other statewide.

Chamorro Americans: full group profile →

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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 2020

01Audubon County, IAIA5,5090.3%+0.2 pts

02Montgomery County, IAIA10,0020.2%–

03Jasper County, IAIA38,1530.2%+0.2 pts

04Dubuque County, IAIA99,3810.1%+0.0 pts

05Floyd County, IAIA14,9010.1%−0.6 pts

06Webster County, IAIA36,8380.1%–

07Bremer County, IAIA25,2960.1%–

08Lyon County, IAIA12,3540.0%−0.0 pts

09Scott County, IAIA175,2590.0%+0.0 pts

10Sac County, IAIA9,5250.0%–

11Story County, IAIA101,2910.0%+0.0 pts

12Mahaska County, IAIA21,8800.0%+0.0 pts

13Polk County, IAIA516,5460.0%+0.0 pts

14O'Brien County, IAIA14,2200.0%–

15Decatur County, IAIA7,6550.0%+0.0 pts

16Warren County, IAIA57,3310.0%−0.0 pts

17Fayette County, IAIA19,0470.0%+0.0 pts

18Benton County, IAIA26,0040.0%–

19Johnson County, IAIA160,0440.0%−0.0 pts

20Des Moines County, IAIA38,0770.0%−0.0 pts

SHOWING 1–20 OF 20

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