RANKING · 2010 CENSUS · 44 SHOWN OF 44

Largest Australian population, Illinois counties · 2010

Illinois counties ranked by the number of residents who are Australian ancestry, from the 2010 American Community Survey detailed-origin tables. Each list covers the full eligible universe; download the complete data as CSV. This list covers the 44 counties in Illinois that qualify, ranked against each other statewide. The median across all 44 is 16.

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 –

01Cook County, ILIL5,194,625977–

02St. Clair County, ILIL250,708350–

03DuPage County, ILIL934,298226–

04Lake County, ILIL719,339171–

05Sangamon County, ILIL194,170100–

06Madison County, ILIL263,11077–

07Will County, ILIL712,25377–

08Tazewell County, ILIL130,04964–

09DeKalb County, ILIL101,83553–

10McHenry County, ILIL317,75153–

11Champaign County, ILIL209,97246–

12Lawrence County, ILIL13,79046–

13Macon County, ILIL99,30045–

14Piatt County, ILIL16,79145–

15Kane County, ILIL525,75743–

16Christian County, ILIL33,44334–

17Menard County, ILIL11,86334–

18Greene County, ILIL11,31323–

19Lee County, ILIL32,91420–

20McLean County, ILIL171,41918–

21Douglas County, ILIL19,88017–

22Mason County, ILIL12,41116–

23Jefferson County, ILIL36,14715–

24Grundy County, ILIL54,05214–

25Peoria County, ILIL178,55314–

26Jackson County, ILIL52,50113–

27Livingston County, ILIL35,05713–

28Woodford County, ILIL38,11113–

29Montgomery County, ILIL28,07610–

30Rock Island County, ILIL141,86910–

31Knox County, ILIL47,7679–

32LaSalle County, ILIL107,7739–

33Vermilion County, ILIL71,2599–

34Iroquois County, ILIL26,1508–

35White County, ILIL13,2508–

36Massac County, ILIL13,5027–

37Henry County, ILIL48,0956–

38Ogle County, ILIL51,3996–

39Washington County, ILIL13,5645–

40Calhoun County, ILIL4,3004–

41Williamson County, ILIL67,2254–

42Putnam County, ILIL5,6193–

43Clinton County, ILIL37,1282–

44Macoupin County, ILIL43,7482–

SHOWING 1–44 OF 44

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