RANKING · 2010 CENSUS · 13 SHOWN OF 13

Highest Costa Rican population share, Iowa counties · 2010

Iowa counties ranked by the share of all residents who are Costa Rican origin (2023 American Community Survey). A concentration measure: Costa Rican residents as a percentage of total population. This list covers the 13 counties in Iowa that qualify, ranked against each other statewide.

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RELATEDLargest Mexican population Highest Mexican population share Largest Puerto Rican population Highest Puerto Rican population share Largest Cuban population Highest Cuban population share

YEAR2010 2020 2024

Highest Costa Rican population share by state

RANKPLACESTATEPOPCOSTA RICAN SHAREVS 2000

01Monona County, IAIA8,5390.1%–

02Poweshiek County, IAIA18,3680.1%–

03Black Hawk County, IAIA131,5320.0%–

04Iowa County, IAIA16,5040.0%–

05Jackson County, IAIA19,2880.0%–

06Mitchell County, IAIA10,6500.0%–

07Wapello County, IAIA35,2100.0%–

08Cherokee County, IAIA11,3690.0%–

09Scott County, IAIA175,2590.0%–

10Dubuque County, IAIA99,3810.0%–

11Woodbury County, IAIA106,6490.0%–

12Polk County, IAIA516,5460.0%–

13Johnson County, IAIA160,0440.0%–

SHOWING 1–13 OF 13

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