RANKING · 2020 CENSUS · 25 SHOWN OF 25

Largest Costa Rican population, Wisconsin counties · 2020

Wisconsin 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 25 counties in Wisconsin that qualify, ranked against each other statewide. The median across all 25 is 21.

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

01Dane County, WIWI590,375460+475%

02Milwaukee County, WIWI924,216252+12%

03Portage County, WIWI71,94364+1180%

04Outagamie County, WIWI195,89458–

05Kenosha County, WIWI168,44834–

06Sauk County, WIWI66,65234–

07Washington County, WIWI139,23834+89%

08Ozaukee County, WIWI94,34632–

09Marathon County, WIWI139,43227–

10Pierce County, WIWI43,51927–

11Douglas County, WIWI43,99025–

12Iowa County, WIWI23,95123–

13Calumet County, WIWI53,98221–

14Columbia County, WIWI58,13216–

15Monroe County, WIWI46,57213–

16Winnebago County, WIWI174,21812–

17Fond du Lac County, WIWI104,66910−50%

18La Crosse County, WIWI121,3399–

19Shawano County, WIWI41,5607–

20Waupaca County, WIWI51,4617−36%

21Green Lake County, WIWI19,3057–

22Vilas County, WIWI23,7614–

23Eau Claire County, WIWI109,0333−92%

24Dodge County, WIWI89,0973−40%

25Trempealeau County, WIWI31,1713–

SHOWING 1–25 OF 25

Download CSV (full list, 25 rows)

UPDATED 2026-09-11 · DATA: US CENSUS BUREAU DECENNIAL CENSUS