RANKING · 2020 CENSUS · 49 SHOWN OF 49

Largest Slovene population, Illinois counties · 2020

Illinois counties ranked by the number of residents who are Slovene 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 49 counties in Illinois that qualify, ranked against each other statewide. The median across all 49 is 25.

Slovene 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

RANKPLACESTATEPOPSLOVENE POPULATIONVS 2010

01Cook County, ILIL5,194,6253,797−13%

02Will County, ILIL712,2532,813−32%

03DuPage County, ILIL934,2981,748+35%

04Lake County, ILIL719,3391,375−16%

05LaSalle County, ILIL107,773745+42%

06Kane County, ILIL525,757556+57%

07Kendall County, ILIL145,470321+15%

08McHenry County, ILIL317,751243−23%

09Sangamon County, ILIL194,170201+21%

10Winnebago County, ILIL283,674150+117%

11Bureau County, ILIL32,510149+27%

12McLean County, ILIL171,419133−19%

13DeKalb County, ILIL101,835124+143%

14Grundy County, ILIL54,052121−17%

15Champaign County, ILIL209,97297+94%

16Kankakee County, ILIL105,52582−6%

17Jackson County, ILIL52,50172+148%

18Macoupin County, ILIL43,74856−46%

19Peoria County, ILIL178,55349−66%

20Rock Island County, ILIL141,86945+36%

21Macon County, ILIL99,30045+275%

22Tazewell County, ILIL130,049370%

23Effingham County, ILIL34,51930–

24Vermilion County, ILIL71,25926+189%

25Putnam County, ILIL5,61925−57%

26Woodford County, ILIL38,11125+47%

27Madison County, ILIL263,11020−35%

28Montgomery County, ILIL28,07620−67%

29Livingston County, ILIL35,05719−53%

30Logan County, ILIL27,18219+36%

31St. Clair County, ILIL250,70818−36%

32Franklin County, ILIL36,91618−54%

33Ogle County, ILIL51,39918–

34Christian County, ILIL33,44317−6%

35Iroquois County, ILIL26,15017–

36Henry County, ILIL48,0959+200%

37Randolph County, ILIL29,9219−10%

38Whiteside County, ILIL54,1218−11%

39Jo Daviess County, ILIL21,5946−63%

40Wabash County, ILIL10,9075–

41Hancock County, ILIL16,8034–

42Knox County, ILIL47,7674–

43Stephenson County, ILIL43,2204−83%

44Piatt County, ILIL16,7913–

45Stark County, ILIL5,3193–

46De Witt County, ILIL15,1182–

47Jefferson County, ILIL36,1472–

48Lee County, ILIL32,9141−83%

49Marshall County, ILIL11,4731−93%

SHOWING 1–49 OF 49

Download CSV (full list, 49 rows)

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