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.

Slovak Americans: full group profile →

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

04Will County, ILIL712,2530.6%−0.3 pts

05Marshall County, ILIL11,4730.5%−0.4 pts

06Christian County, ILIL33,4430.5%+0.2 pts

07DuPage County, ILIL934,2980.4%−0.2 pts

08DeKalb County, ILIL101,8350.4%+0.1 pts

09Sangamon County, ILIL194,1700.4%+0.0 pts

10Pulaski County, ILIL4,8200.4%–

11Menard County, ILIL11,8630.3%+0.1 pts

12Putnam County, ILIL5,6190.3%−1.3 pts

13Madison County, ILIL263,1100.3%+0.0 pts

14Macoupin County, ILIL43,7480.3%−0.5 pts

15Pike County, ILIL14,2310.2%–

16Piatt County, ILIL16,7910.2%+0.2 pts

17Kendall County, ILIL145,4700.2%−0.2 pts

18Kane County, ILIL525,7570.2%−0.1 pts

19Lake County, ILIL719,3390.2%−0.1 pts

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

21Bureau County, ILIL32,5100.2%−0.1 pts

22McHenry County, ILIL317,7510.2%−0.0 pts

23Vermilion County, ILIL71,2590.2%−0.1 pts

24McLean County, ILIL171,4190.2%−0.2 pts

25Henry County, ILIL48,0950.2%+0.1 pts

26Hamilton County, ILIL7,8590.2%–

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

28Montgomery County, ILIL28,0760.2%−0.2 pts

29Ford County, ILIL13,2160.1%−0.1 pts

30Mercer County, ILIL15,2290.1%−0.1 pts

31Shelby County, ILIL20,5760.1%−0.0 pts

32Richland County, ILIL15,2190.1%−0.1 pts

33Kankakee County, ILIL105,5250.1%−0.1 pts

34St. Clair County, ILIL250,7080.1%−0.0 pts

35Crawford County, ILIL18,6480.1%+0.0 pts

36Macon County, ILIL99,3000.1%+0.0 pts

37Adams County, ILIL64,2670.1%−0.0 pts

38Peoria County, ILIL178,5530.1%−0.1 pts

39Tazewell County, ILIL130,0490.1%−0.0 pts

40Carroll County, ILIL15,4190.1%+0.1 pts

41Winnebago County, ILIL283,6740.1%−0.0 pts

42Rock Island County, ILIL141,8690.1%−0.0 pts

43Bond County, ILIL16,9590.1%+0.0 pts

44Clinton County, ILIL37,1280.1%+0.1 pts

45Franklin County, ILIL36,9160.1%−0.1 pts

46Champaign County, ILIL209,9720.1%−0.1 pts

47Iroquois County, ILIL26,1500.1%−0.0 pts

48Williamson County, ILIL67,2250.1%−0.0 pts

49Boone County, ILIL53,5680.1%+0.0 pts

50White County, ILIL13,2500.1%−0.0 pts

51Jefferson County, ILIL36,1470.1%+0.0 pts

52Jackson County, ILIL52,5010.1%−0.0 pts

53Moultrie County, ILIL14,3710.0%+0.0 pts

54Morgan County, ILIL32,5150.0%+0.0 pts

55Mason County, ILIL12,4110.0%–

56Clay County, ILIL12,7930.0%–

57Lee County, ILIL32,9140.0%−0.1 pts

58Schuyler County, ILIL6,6570.0%−0.2 pts

59Monroe County, ILIL34,8400.0%−0.1 pts

60Massac County, ILIL13,5020.0%−0.1 pts

61Perry County, ILIL20,1600.0%−0.0 pts

62Ogle County, ILIL51,3990.0%−0.2 pts

63Stephenson County, ILIL43,2200.0%−0.1 pts

64Effingham County, ILIL34,5190.0%−0.0 pts

65McDonough County, ILIL25,9160.0%−0.1 pts

66Logan County, ILIL27,1820.0%−0.0 pts

67Fulton County, ILIL32,9010.0%−0.0 pts

68Washington County, ILIL13,5640.0%−0.0 pts

69Warren County, ILIL16,2220.0%−0.2 pts

70Union County, ILIL16,6560.0%−0.1 pts

71Knox County, ILIL47,7670.0%−0.0 pts

72Marion County, ILIL36,3820.0%−0.0 pts

73Woodford County, ILIL38,1110.0%−0.2 pts

74Coles County, ILIL46,6070.0%−0.1 pts

SHOWING 1–74 OF 74

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UPDATED 2026-08-08 · DATA: US CENSUS BUREAU ACS 5-YEAR ESTIMATES