RANKING · 2020 CENSUS · 37 SHOWN OF 37

Highest Australian population share, Illinois counties · 2020

Illinois counties ranked by the share of all residents who are Australian ancestry (2023 American Community Survey). A concentration measure: Australian residents as a percentage of total population. This list covers the 37 counties in Illinois that qualify, ranked against each other statewide.

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SAME RANKING BYCities States Metros

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

YEAR2010 2020 2024

Highest Australian population share by state

RANKPLACESTATEPOPAUSTRALIAN SHAREVS 2000

01Mason County, ILIL12,4110.2%–

02Kendall County, ILIL145,4700.1%–

03Douglas County, ILIL19,8800.1%–

04DeKalb County, ILIL101,8350.1%–

05Iroquois County, ILIL26,1500.1%–

06St. Clair County, ILIL250,7080.1%–

07Knox County, ILIL47,7670.1%–

08Tazewell County, ILIL130,0490.1%–

09Edwards County, ILIL5,8980.0%–

10Coles County, ILIL46,6070.0%–

11Cook County, ILIL5,194,6250.0%–

12Moultrie County, ILIL14,3710.0%–

13Clinton County, ILIL37,1280.0%–

14Peoria County, ILIL178,5530.0%–

15Lake County, ILIL719,3390.0%–

16DuPage County, ILIL934,2980.0%–

17Whiteside County, ILIL54,1210.0%–

18Vermilion County, ILIL71,2590.0%–

19Kane County, ILIL525,7570.0%–

20Macon County, ILIL99,3000.0%–

21Warren County, ILIL16,2220.0%–

22Morgan County, ILIL32,5150.0%–

23Wabash County, ILIL10,9070.0%–

24Champaign County, ILIL209,9720.0%–

25Will County, ILIL712,2530.0%–

26Madison County, ILIL263,1100.0%–

27Lee County, ILIL32,9140.0%–

28Logan County, ILIL27,1820.0%–

29Rock Island County, ILIL141,8690.0%–

30Sangamon County, ILIL194,1700.0%–

31Bureau County, ILIL32,5100.0%–

32Marshall County, ILIL11,4730.0%–

33Jefferson County, ILIL36,1470.0%–

34Henry County, ILIL48,0950.0%–

35Williamson County, ILIL67,2250.0%–

36McLean County, ILIL171,4190.0%–

37Kankakee County, ILIL105,5250.0%–

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UPDATED 2026-06-06 · DATA: US CENSUS BUREAU ACS 5-YEAR ESTIMATES