RANKING · 2020 CENSUS · 10 SHOWN OF 10

Largest Costa Rican population, Iowa counties · 2020

Iowa counties ranked by the number of residents who are Costa Rican origin, from the 2020 American Community Survey detailed-origin tables. Each list covers the full eligible universe; download the complete data as CSV. This list covers the 10 counties in Iowa that qualify, ranked against each other statewide.

Costa Rican Americans: full group profile →

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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

Largest Costa Rican population by state

RANKPLACESTATEPOPCOSTA RICAN POPULATIONVS 2010

01Scott County, IAIA175,259116+383%

02Polk County, IAIA516,546106+715%

03Dallas County, IAIA118,45760–

04Wapello County, IAIA35,21034+467%

05Woodbury County, IAIA106,64933+560%

06Johnson County, IAIA160,04419+533%

07Buena Vista County, IAIA20,44914–

08Story County, IAIA101,29110–

09Pottawattamie County, IAIA92,9968–

10Monona County, IAIA8,5392−67%

SHOWING 1–10 OF 10

Download CSV (full list, 10 rows)

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