RANKING · 2024 ACS · 93 SHOWN OF 93

Highest Czech population share, Illinois counties

Illinois counties ranked by the share of all residents who are Czech ancestry (2024 American Community Survey). A concentration measure: Czech residents as a percentage of total population. This list covers the 93 counties in Illinois that qualify, ranked against each other statewide.

Czech Americans: full group profile →

IllinoisAll states All rankings

SAME RANKING BYCities States Metros

YEAR2010 2020 2024

RANKPLACESTATEPOPCZECH SHAREVS 2010

01DuPage County, ILIL934,2981.5%−1.0 pts

02Grundy County, ILIL54,0521.2%−0.8 pts

03Will County, ILIL712,2531.2%−0.7 pts

04McHenry County, ILIL317,7511.2%−0.7 pts

05Kendall County, ILIL145,4701.1%−0.8 pts

06Jo Daviess County, ILIL21,5941.0%+0.5 pts

07DeKalb County, ILIL101,8350.9%−0.2 pts

08Kane County, ILIL525,7570.9%−0.3 pts

09Jersey County, ILIL21,1600.8%+0.6 pts

10LaSalle County, ILIL107,7730.8%−0.1 pts

11Calhoun County, ILIL4,3000.8%+0.5 pts

12Scott County, ILIL4,8660.8%+0.7 pts

13Piatt County, ILIL16,7910.8%+0.2 pts

14Mercer County, ILIL15,2290.7%−0.5 pts

15Ogle County, ILIL51,3990.6%−0.4 pts

16Boone County, ILIL53,5680.6%−0.1 pts

17Monroe County, ILIL34,8400.6%−0.3 pts

18Cook County, ILIL5,194,6250.6%−0.3 pts

19Madison County, ILIL263,1100.6%−0.1 pts

20Lake County, ILIL719,3390.6%−0.4 pts

21Bureau County, ILIL32,5100.5%+0.0 pts

22Christian County, ILIL33,4430.5%−0.0 pts

23Henry County, ILIL48,0950.5%−0.1 pts

24Kankakee County, ILIL105,5250.5%−0.1 pts

25Carroll County, ILIL15,4190.5%−1.1 pts

26Lee County, ILIL32,9140.5%−0.3 pts

27Moultrie County, ILIL14,3710.4%+0.3 pts

28Livingston County, ILIL35,0570.4%−0.0 pts

29Champaign County, ILIL209,9720.4%−0.1 pts

30McLean County, ILIL171,4190.4%−0.2 pts

31Stephenson County, ILIL43,2200.4%−0.2 pts

32Winnebago County, ILIL283,6740.4%−0.2 pts

33Marion County, ILIL36,3820.4%+0.2 pts

34Menard County, ILIL11,8630.4%+0.1 pts

35Rock Island County, ILIL141,8690.4%−0.3 pts

36Pope County, ILIL3,6720.3%−0.7 pts

37Montgomery County, ILIL28,0760.3%−0.4 pts

38Woodford County, ILIL38,1110.3%−0.1 pts

39Fulton County, ILIL32,9010.3%−0.1 pts

40Coles County, ILIL46,6070.3%+0.0 pts

41Peoria County, ILIL178,5530.3%−0.3 pts

42St. Clair County, ILIL250,7080.3%−0.2 pts

43Jackson County, ILIL52,5010.3%−0.1 pts

44Iroquois County, ILIL26,1500.3%−0.1 pts

45Tazewell County, ILIL130,0490.3%−0.2 pts

46Jefferson County, ILIL36,1470.3%+0.1 pts

47Washington County, ILIL13,5640.3%+0.1 pts

48Hardin County, ILIL3,5880.2%–

49Vermilion County, ILIL71,2590.2%−0.0 pts

50Cumberland County, ILIL10,2080.2%−0.2 pts

51Whiteside County, ILIL54,1210.2%−0.5 pts

52Shelby County, ILIL20,5760.2%−0.1 pts

53Fayette County, ILIL20,7900.2%−0.2 pts

54Richland County, ILIL15,2190.2%+0.1 pts

55Sangamon County, ILIL194,1700.2%−0.2 pts

56Macoupin County, ILIL43,7480.2%−0.3 pts

57Marshall County, ILIL11,4730.2%−0.7 pts

58Warren County, ILIL16,2220.2%+0.0 pts

59Clark County, ILIL15,1140.2%+0.1 pts

60Putnam County, ILIL5,6190.2%+0.1 pts

61Randolph County, ILIL29,9210.2%−0.0 pts

62Knox County, ILIL47,7670.2%−0.2 pts

63Crawford County, ILIL18,6480.2%−0.0 pts

64Bond County, ILIL16,9590.2%−0.1 pts

65Adams County, ILIL64,2670.2%−0.1 pts

66Perry County, ILIL20,1600.2%−0.0 pts

67Stark County, ILIL5,3190.2%−0.0 pts

68Saline County, ILIL22,7720.2%+0.1 pts

69Hancock County, ILIL16,8030.2%−0.3 pts

70Schuyler County, ILIL6,6570.2%–

71Johnson County, ILIL13,3630.2%−0.2 pts

72Henderson County, ILIL5,9840.1%−0.4 pts

73Williamson County, ILIL67,2250.1%−0.4 pts

74Hamilton County, ILIL7,8590.1%−0.2 pts

75Macon County, ILIL99,3000.1%−0.1 pts

76McDonough County, ILIL25,9160.1%−0.4 pts

77Morgan County, ILIL32,5150.1%−0.4 pts

78Logan County, ILIL27,1820.1%−0.3 pts

79Franklin County, ILIL36,9160.1%−0.2 pts

80Alexander County, ILIL4,5700.1%−0.4 pts

81Clinton County, ILIL37,1280.1%−0.2 pts

82Ford County, ILIL13,2160.1%−0.2 pts

83White County, ILIL13,2500.1%−0.1 pts

84Mason County, ILIL12,4110.1%−0.0 pts

85Pike County, ILIL14,2310.1%+0.1 pts

86Lawrence County, ILIL13,7900.0%−0.0 pts

87Wayne County, ILIL15,8820.0%−0.1 pts

88Clay County, ILIL12,7930.0%–

89Douglas County, ILIL19,8800.0%+0.0 pts

90De Witt County, ILIL15,1180.0%−0.0 pts

91Union County, ILIL16,6560.0%−0.4 pts

92Cass County, ILIL12,4630.0%−0.2 pts

93Effingham County, ILIL34,5190.0%−0.0 pts

SHOWING 1–93 OF 93

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