RANKING · 2024 ACS · 28 SHOWN OF 28

Largest Australian population, Illinois counties

Illinois counties ranked by the number of residents who are Australian ancestry, from the 2024 American Community Survey detailed-origin tables. Each list covers the full eligible universe; download the complete data as CSV. This list covers the 28 counties in Illinois that qualify, ranked against each other statewide.

Australian Americans: full group profile →

IllinoisAll states All rankings

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

Largest Australian population by state

RANKPLACESTATEPOPAUSTRALIAN POPULATIONVS 2010

01Cook County, ILIL5,194,6252,221+127%

02Lake County, ILIL719,339327+91%

03DuPage County, ILIL934,298263+16%

04Kane County, ILIL525,757132+207%

05McHenry County, ILIL317,75192+74%

06Madison County, ILIL263,11084+9%

07Will County, ILIL712,25379+3%

08Christian County, ILIL33,44368+100%

09DeKalb County, ILIL101,83545−15%

10McLean County, ILIL171,41938+111%

11De Witt County, ILIL15,11835–

12LaSalle County, ILIL107,77335+289%

13Sangamon County, ILIL194,17031−69%

14Winnebago County, ILIL283,67428–

15Kendall County, ILIL145,47023–

16Effingham County, ILIL34,51922–

17McDonough County, ILIL25,91618–

18Peoria County, ILIL178,55317+21%

19Rock Island County, ILIL141,86914+40%

20Williamson County, ILIL67,22514+250%

21St. Clair County, ILIL250,70811−97%

22Knox County, ILIL47,7679+0%

23Macon County, ILIL99,3007−84%

24Clark County, ILIL15,1145–

25Iroquois County, ILIL26,1505−38%

26Douglas County, ILIL19,8803−82%

27Grundy County, ILIL54,0523−79%

28Scott County, ILIL4,8663–

SHOWING 1–28 OF 28

Download CSV (full list, 28 rows)

UPDATED 2026-07-15 · DATA: US CENSUS BUREAU ACS 5-YEAR ESTIMATES