RANKING · 2024 ACS · 16 SHOWN OF 16

Highest Costa Rican population share, Iowa counties

Iowa counties ranked by the share of all residents who are Costa Rican origin (2024 American Community Survey). A concentration measure: Costa Rican residents as a percentage of total population. This list covers the 16 counties in Iowa that qualify, ranked against each other statewide. The median across all 16 is 0.1%.

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

Highest Costa Rican population share by state

RANKPLACESTATEPOPCOSTA RICAN SHAREVS 2010

01Wright County, IAIA12,8010.2%–

02▲2Dallas County, IAIA118,4570.2%–

03▼1Buena Vista County, IAIA20,4490.1%–

04Allamakee County, IAIA14,2380.1%–

05Black Hawk County, IAIA131,5320.1%+0.1 pts

06Iowa County, IAIA16,5040.1%+0.1 pts

07▼1Monona County, IAIA8,5390.1%0.0 pts

08Mitchell County, IAIA10,6500.1%+0.1 pts

09Madison County, IAIA17,2700.1%–

10Marshall County, IAIA39,8900.0%–

11Clinton County, IAIA46,0020.0%–

12▼3Story County, IAIA101,2910.0%–

13Tama County, IAIA16,7960.0%–

14▼11Scott County, IAIA175,2590.0%0.0 pts

15▼8Polk County, IAIA516,5460.0%0.0 pts

16Linn County, IAIA232,0280.0%–

SHOWING 1–16 OF 16

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UPDATED 2026-09-11 · DATA: US CENSUS BUREAU ACS 5-YEAR ESTIMATES