RANKING · 2024 ACS · 74 SHOWN OF 74

Highest Slovak population share, Illinois counties

Illinois counties ranked by the share of all residents who are Slovak ancestry (2024 American Community Survey). A concentration measure: Slovak residents as a percentage of total population. This list covers the 74 counties in Illinois that qualify, ranked against each other statewide. The median across all 74 is 0.1%. Biggest climber in the top 100 since 2020: Menard County, IL, up 38 places to #11.

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IllinoisAll states All rankings

SAME RANKING BYCities States Metros

YEAR2010 2020 2024

RANKPLACESTATEPOPSLOVAK SHAREVS 2010

01LaSalle County, ILIL107,7731.4%−1.4 pts

02Livingston County, ILIL35,0570.9%−0.4 pts

03Grundy County, ILIL54,0520.8%0.0 pts

04▲3Will County, ILIL712,2530.6%−0.3 pts

05▼1Marshall County, ILIL11,4730.5%−0.4 pts

06▲21Christian County, ILIL33,4430.5%+0.2 pts

07▲2DuPage County, ILIL934,2980.4%−0.2 pts

08▲16DeKalb County, ILIL101,8350.4%+0.1 pts

09▲1Sangamon County, ILIL194,1700.4%0.0 pts

10Pulaski County, ILIL4,8200.4%–

11▲38Menard County, ILIL11,8630.3%+0.1 pts

12▼4Putnam County, ILIL5,6190.3%−1.3 pts

13Madison County, ILIL263,1100.3%0.0 pts

14▼9Macoupin County, ILIL43,7480.3%−0.5 pts

15▲10Pike County, ILIL14,2310.2%–

16▲26Piatt County, ILIL16,7910.2%+0.2 pts

17▼11Kendall County, ILIL145,4700.2%−0.2 pts

18▲11Kane County, ILIL525,7570.2%−0.1 pts

19▼1Lake County, ILIL719,3390.2%−0.1 pts

20▼1Cook County, ILIL5,194,6250.2%−0.1 pts

21▼5Bureau County, ILIL32,5100.2%−0.1 pts

22▼5McHenry County, ILIL317,7510.2%0.0 pts

23▲23Vermilion County, ILIL71,2590.2%−0.1 pts

24▲2McLean County, ILIL171,4190.2%−0.2 pts

25▲6Henry County, ILIL48,0950.2%+0.1 pts

26▼15Hamilton County, ILIL7,8590.2%–

27▼13Jo Daviess County, ILIL21,5940.2%+0.1 pts

28▼16Montgomery County, ILIL28,0760.2%−0.2 pts

29▲19Ford County, ILIL13,2160.1%−0.1 pts

30Mercer County, ILIL15,2290.1%−0.1 pts

31▲12Shelby County, ILIL20,5760.1%0.0 pts

32Richland County, ILIL15,2190.1%−0.1 pts

33▼1Kankakee County, ILIL105,5250.1%−0.1 pts

34▲11St. Clair County, ILIL250,7080.1%0.0 pts

35▲20Crawford County, ILIL18,6480.1%0.0 pts

36▲18Macon County, ILIL99,3000.1%0.0 pts

37▲26Adams County, ILIL64,2670.1%0.0 pts

38▲1Peoria County, ILIL178,5530.1%−0.1 pts

39▼1Tazewell County, ILIL130,0490.1%0.0 pts

40▼7Carroll County, ILIL15,4190.1%+0.1 pts

41▼1Winnebago County, ILIL283,6740.1%0.0 pts

42▲22Rock Island County, ILIL141,8690.1%0.0 pts

43Bond County, ILIL16,9590.1%0.0 pts

44▲9Clinton County, ILIL37,1280.1%+0.1 pts

45▲7Franklin County, ILIL36,9160.1%−0.1 pts

46▼18Champaign County, ILIL209,9720.1%−0.1 pts

47▼11Iroquois County, ILIL26,1500.1%0.0 pts

48▲11Williamson County, ILIL67,2250.1%0.0 pts

49▲17Boone County, ILIL53,5680.1%0.0 pts

50White County, ILIL13,2500.1%0.0 pts

51▼16Jefferson County, ILIL36,1470.1%0.0 pts

52▼8Jackson County, ILIL52,5010.1%0.0 pts

53▲14Moultrie County, ILIL14,3710.0%0.0 pts

54▼34Morgan County, ILIL32,5150.0%0.0 pts

55Mason County, ILIL12,4110.0%–

56Clay County, ILIL12,7930.0%–

57▼10Lee County, ILIL32,9140.0%−0.1 pts

58Schuyler County, ILIL6,6570.0%−0.2 pts

59▼37Monroe County, ILIL34,8400.0%−0.1 pts

60Massac County, ILIL13,5020.0%−0.1 pts

61▲1Perry County, ILIL20,1600.0%0.0 pts

62▼28Ogle County, ILIL51,3990.0%−0.2 pts

63▲5Stephenson County, ILIL43,2200.0%−0.1 pts

64▼7Effingham County, ILIL34,5190.0%0.0 pts

65McDonough County, ILIL25,9160.0%−0.1 pts

66▼8Logan County, ILIL27,1820.0%0.0 pts

67Fulton County, ILIL32,9010.0%0.0 pts

68Washington County, ILIL13,5640.0%0.0 pts

69▲5Warren County, ILIL16,2220.0%−0.2 pts

70▼9Union County, ILIL16,6560.0%−0.1 pts

71Knox County, ILIL47,7670.0%0.0 pts

72▼2Marion County, ILIL36,3820.0%0.0 pts

73▼58Woodford County, ILIL38,1110.0%−0.2 pts

74▼2Coles County, ILIL46,6070.0%−0.1 pts

SHOWING 1–74 OF 74

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UPDATED 2026-09-11 · DATA: US CENSUS BUREAU ACS 5-YEAR ESTIMATES