RANKING · 2024 ACS · 75 SHOWN OF 75

Highest Croatian population share, Illinois counties

Illinois counties ranked by the share of all residents who are Croatian ancestry (2023 American Community Survey). A concentration measure: Croatian residents as a percentage of total population. This list covers the 75 counties in Illinois that qualify, ranked against each other statewide.

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

RANKPLACESTATEPOPCROATIAN SHAREVS 2000

01Grundy County, ILIL54,0521.1%–

02Fulton County, ILIL32,9011.0%–

03Putnam County, ILIL5,6190.9%–

04Marshall County, ILIL11,4730.8%–

05Will County, ILIL712,2530.6%–

06Madison County, ILIL263,1100.5%–

07Henderson County, ILIL5,9840.5%–

08DuPage County, ILIL934,2980.5%–

09Macoupin County, ILIL43,7480.5%–

10Franklin County, ILIL36,9160.4%–

11Montgomery County, ILIL28,0760.4%–

12Monroe County, ILIL34,8400.4%–

13Union County, ILIL16,6560.4%–

14Jo Daviess County, ILIL21,5940.4%–

15Richland County, ILIL15,2190.4%–

16White County, ILIL13,2500.4%–

17Kendall County, ILIL145,4700.3%–

18Cook County, ILIL5,194,6250.3%–

19St. Clair County, ILIL250,7080.2%–

20Lake County, ILIL719,3390.2%–

21McHenry County, ILIL317,7510.2%–

22Peoria County, ILIL178,5530.2%–

23Tazewell County, ILIL130,0490.2%–

24Kankakee County, ILIL105,5250.2%–

25Iroquois County, ILIL26,1500.2%–

26LaSalle County, ILIL107,7730.2%–

27McLean County, ILIL171,4190.2%–

28Williamson County, ILIL67,2250.2%–

29Kane County, ILIL525,7570.2%–

30Crawford County, ILIL18,6480.2%–

31Rock Island County, ILIL141,8690.2%–

32Scott County, ILIL4,8660.1%–

33Gallatin County, ILIL4,6160.1%–

34Sangamon County, ILIL194,1700.1%–

35Winnebago County, ILIL283,6740.1%–

36Henry County, ILIL48,0950.1%–

37Jersey County, ILIL21,1600.1%–

38Macon County, ILIL99,3000.1%–

39Perry County, ILIL20,1600.1%–

40Fayette County, ILIL20,7900.1%–

41Jefferson County, ILIL36,1470.1%–

42Marion County, ILIL36,3820.1%–

43Knox County, ILIL47,7670.1%–

44Menard County, ILIL11,8630.1%–

45Douglas County, ILIL19,8800.1%–

46Piatt County, ILIL16,7910.1%–

47Stark County, ILIL5,3190.1%–

48Mason County, ILIL12,4110.1%–

49Saline County, ILIL22,7720.1%–

50Mercer County, ILIL15,2290.1%–

51McDonough County, ILIL25,9160.1%–

52Champaign County, ILIL209,9720.1%–

53Bureau County, ILIL32,5100.1%–

54Boone County, ILIL53,5680.1%–

55DeKalb County, ILIL101,8350.1%–

56Christian County, ILIL33,4430.1%–

57Logan County, ILIL27,1820.1%–

58Effingham County, ILIL34,5190.1%–

59Shelby County, ILIL20,5760.1%–

60Jackson County, ILIL52,5010.1%–

61Ford County, ILIL13,2160.1%–

62Coles County, ILIL46,6070.1%–

63Whiteside County, ILIL54,1210.1%–

64Stephenson County, ILIL43,2200.1%–

65Calhoun County, ILIL4,3000.0%–

66Carroll County, ILIL15,4190.0%–

67Clinton County, ILIL37,1280.0%–

68Vermilion County, ILIL71,2590.0%–

69Wayne County, ILIL15,8820.0%–

70Cass County, ILIL12,4630.0%–

71Ogle County, ILIL51,3990.0%–

72Warren County, ILIL16,2220.0%–

73Lee County, ILIL32,9140.0%–

74Washington County, ILIL13,5640.0%–

75Livingston County, ILIL35,0570.0%–

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UPDATED 2026-06-06 · DATA: US CENSUS BUREAU ACS 5-YEAR ESTIMATES