RANKING · 2024 ACS · 74 SHOWN OF 74

Largest Slovak population, Illinois counties

Illinois counties ranked by the number of residents who are Slovak 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 74 counties in Illinois that qualify, ranked against each other statewide.

Slovak Americans: full group profile →

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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

RANKPLACESTATEPOPSLOVAK POPULATIONVS 2010

01Cook County, ILIL5,194,62511,063−24%

02Will County, ILIL712,2533,952−32%

03DuPage County, ILIL934,2983,933−25%

04LaSalle County, ILIL107,7731,553−51%

05Lake County, ILIL719,3391,525−35%

06Kane County, ILIL525,7571,175−19%

07Madison County, ILIL263,110795+11%

08Sangamon County, ILIL194,170718+1%

09McHenry County, ILIL317,751650−13%

10Grundy County, ILIL54,052422+6%

11DeKalb County, ILIL101,835389+50%

12Livingston County, ILIL35,057329−38%

13St. Clair County, ILIL250,708315−19%

14Kendall County, ILIL145,470313−32%

15McLean County, ILIL171,419280−54%

16Winnebago County, ILIL283,674239−5%

17Peoria County, ILIL178,553177−58%

18Christian County, ILIL33,443163+55%

19Champaign County, ILIL209,972147−60%

20Vermilion County, ILIL71,259141−34%

21Kankakee County, ILIL105,525136−49%

22Macoupin County, ILIL43,748131−67%

23Tazewell County, ILIL130,049121−18%

24Rock Island County, ILIL141,869120−29%

25Macon County, ILIL99,300119+18%

26Henry County, ILIL48,09575+150%

27Bureau County, ILIL32,51070−29%

28Adams County, ILIL64,26769−28%

29Marshall County, ILIL11,47363−45%

30Williamson County, ILIL67,22545−35%

31Montgomery County, ILIL28,07642−57%

32Menard County, ILIL11,86339+44%

33Piatt County, ILIL16,79139+680%

34Pike County, ILIL14,23135–

35Boone County, ILIL53,56834+13%

36Jo Daviess County, ILIL21,59433+175%

37Clinton County, ILIL37,12830+275%

38Franklin County, ILIL36,91628−53%

39Jackson County, ILIL52,50127−16%

40Shelby County, ILIL20,57627−23%

41Crawford County, ILIL18,64822−4%

42Mercer County, ILIL15,22922−49%

43Ford County, ILIL13,21620−39%

44Richland County, ILIL15,21920−39%

45Jefferson County, ILIL36,14719+850%

46Iroquois County, ILIL26,15018−28%

47Pulaski County, ILIL4,82018–

48Putnam County, ILIL5,61918−81%

49Morgan County, ILIL32,51516+100%

50Lee County, ILIL32,91415−77%

51Carroll County, ILIL15,41914+367%

52Monroe County, ILIL34,84014−59%

53Bond County, ILIL16,95914+75%

54Ogle County, ILIL51,39914−89%

55Hamilton County, ILIL7,85912–

56Stephenson County, ILIL43,22011−80%

57White County, ILIL13,2508−27%

58Effingham County, ILIL34,5197−61%

59Moultrie County, ILIL14,3717+250%

60Perry County, ILIL20,1607−46%

61Clay County, ILIL12,7936–

62Mason County, ILIL12,4116–

63Fulton County, ILIL32,9015−38%

64Knox County, ILIL47,7675−75%

65Logan County, ILIL27,1825−44%

66McDonough County, ILIL25,9165−88%

67Massac County, ILIL13,5025−75%

68Schuyler County, ILIL6,6573−83%

69Marion County, ILIL36,3822−85%

70Union County, ILIL16,6562−86%

71Warren County, ILIL16,2222−94%

72Washington County, ILIL13,5642−33%

73Coles County, ILIL46,6071−99%

74Woodford County, ILIL38,1111−99%

SHOWING 1–74 OF 74

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