RANKING · 2020 CENSUS · 25 SHOWN OF 25

Highest Costa Rican population share, Wisconsin counties · 2020

Wisconsin counties ranked by the share of all residents who are Costa Rican origin (2020 American Community Survey). A concentration measure: Costa Rican residents as a percentage of total population. This list covers the 25 counties in Wisconsin that qualify, ranked against each other statewide. The median across all 25 is 0.0%.

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

01Iowa County, WIWI23,9510.1%–

02Portage County, WIWI71,9430.1%+0.1 pts

03Dane County, WIWI590,3750.1%+0.1 pts

04Pierce County, WIWI43,5190.1%–

05Douglas County, WIWI43,9900.1%–

06Sauk County, WIWI66,6520.1%–

07Calumet County, WIWI53,9820.0%–

08Green Lake County, WIWI19,3050.0%–

09Ozaukee County, WIWI94,3460.0%–

10Outagamie County, WIWI195,8940.0%–

11Monroe County, WIWI46,5720.0%–

12Columbia County, WIWI58,1320.0%–

13Milwaukee County, WIWI924,2160.0%0.0 pts

14Washington County, WIWI139,2380.0%0.0 pts

15Kenosha County, WIWI168,4480.0%–

16Marathon County, WIWI139,4320.0%–

17Vilas County, WIWI23,7610.0%–

18Shawano County, WIWI41,5600.0%–

19Waupaca County, WIWI51,4610.0%0.0 pts

20Trempealeau County, WIWI31,1710.0%–

21Fond du Lac County, WIWI104,6690.0%0.0 pts

22La Crosse County, WIWI121,3390.0%–

23Winnebago County, WIWI174,2180.0%–

24Dodge County, WIWI89,0970.0%0.0 pts

25Eau Claire County, WIWI109,0330.0%0.0 pts

SHOWING 1–25 OF 25

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