RANKING · 2020 CENSUS · 46 SHOWN OF 46

Largest Australian population, Wisconsin counties · 2020

Wisconsin counties ranked by the number of residents who are Australian ancestry, 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 46 counties in Wisconsin that qualify, ranked against each other statewide.

Australian Americans: full group profile →

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RELATEDLargest American population Highest American population share Largest Arab population Highest Arab population share Largest Egyptian population Highest Egyptian population share

YEAR2010 2020 2024

Largest Australian population by state

RANKPLACESTATEPOPAUSTRALIAN POPULATIONVS 2010

01Milwaukee County, WIWI924,216211−27%

02Dane County, WIWI590,375193+4%

03Rock County, WIWI166,472171+511%

04Waukesha County, WIWI417,21070−27%

05Marinette County, WIWI42,57469+306%

06St. Croix County, WIWI98,27652+300%

07Jefferson County, WIWI86,50547+12%

08Eau Claire County, WIWI109,03343−27%

09Kenosha County, WIWI168,44837−39%

10Winnebago County, WIWI174,21829+164%

11Racine County, WIWI198,91928+0%

12Douglas County, WIWI43,99024–

13Lincoln County, WIWI28,40322+120%

14Vilas County, WIWI23,76119–

15Walworth County, WIWI106,12719−17%

16Monroe County, WIWI46,57216–

17Green County, WIWI37,22714–

18La Crosse County, WIWI121,33913−84%

19Buffalo County, WIWI13,31812+500%

20Manitowoc County, WIWI81,71012+20%

21Rusk County, WIWI14,14610–

22Sheboygan County, WIWI118,0479+200%

23Portage County, WIWI71,9439–

24Ozaukee County, WIWI94,3468−89%

25Waushara County, WIWI25,2238−43%

26Marathon County, WIWI139,4328−85%

27Brown County, WIWI275,8037−95%

28Polk County, WIWI45,8037−46%

29Outagamie County, WIWI195,8946−74%

30Washburn County, WIWI17,0876−63%

31Iowa County, WIWI23,9516–

32Sauk County, WIWI66,6525−67%

33Dodge County, WIWI89,0974–

34Dunn County, WIWI46,2234−20%

35Lafayette County, WIWI17,4784−67%

36Fond du Lac County, WIWI104,6693−79%

37Ashland County, WIWI16,2032−33%

38Columbia County, WIWI58,1322−83%

39Jackson County, WIWI20,9992–

40Juneau County, WIWI26,6492−80%

41Sawyer County, WIWI18,8462–

42Grant County, WIWI52,4462–

43Oneida County, WIWI38,1312–

44Taylor County, WIWI20,1181–

45Pepin County, WIWI7,5131−67%

46Richland County, WIWI17,0361–

SHOWING 1–46 OF 46

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