RANKING · 2024 ACS · 26 SHOWN OF 26

Highest Costa Rican population share, Wisconsin counties

Wisconsin 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 26 counties in Wisconsin 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

Highest Costa Rican population share by state

RANKPLACESTATEPOPCOSTA RICAN SHAREVS 2010

01Iowa County, WIWI23,9510.1%–

02St. Croix County, WIWI98,2760.1%–

03Portage County, WIWI71,9430.1%+0.1 pts

04Walworth County, WIWI106,1270.1%–

05Milwaukee County, WIWI924,2160.1%+0.0 pts

06Eau Claire County, WIWI109,0330.1%+0.0 pts

07Dane County, WIWI590,3750.0%+0.0 pts

08Calumet County, WIWI53,9820.0%–

09Waukesha County, WIWI417,2100.0%–

10Jefferson County, WIWI86,5050.0%−0.0 pts

11Brown County, WIWI275,8030.0%+0.0 pts

12Sheboygan County, WIWI118,0470.0%–

13Barron County, WIWI46,4840.0%−0.1 pts

14Manitowoc County, WIWI81,7100.0%−0.0 pts

15Rock County, WIWI166,4720.0%–

16Grant County, WIWI52,4460.0%–

17Fond du Lac County, WIWI104,6690.0%−0.0 pts

18Taylor County, WIWI20,1180.0%–

19Outagamie County, WIWI195,8940.0%–

20Dunn County, WIWI46,2230.0%–

21Kenosha County, WIWI168,4480.0%–

22Waupaca County, WIWI51,4610.0%−0.0 pts

23Pierce County, WIWI43,5190.0%–

24Dodge County, WIWI89,0970.0%−0.0 pts

25Chippewa County, WIWI67,6140.0%−0.0 pts

26Ozaukee County, WIWI94,3460.0%–

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UPDATED 2026-08-08 · DATA: US CENSUS BUREAU ACS 5-YEAR ESTIMATES