RANKING · 2020 CENSUS · 80 SHOWN OF 80

Largest Croatian population, Illinois counties · 2020

Illinois counties ranked by the number of residents who are Croatian ancestry, from the 2020 American Community Survey detailed-origin tables. Each list covers the full eligible universe; download the complete data as CSV. This list covers the 80 counties in Illinois that qualify, ranked against each other statewide. The median across all 80 is 40.

Croatian 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

RANKPLACESTATEPOPCROATIAN POPULATIONVS 2010

01Cook County, ILIL5,194,62516,544−12%

02Will County, ILIL712,2535,071−22%

03DuPage County, ILIL934,2984,006−19%

04Lake County, ILIL719,3391,740−36%

05Kane County, ILIL525,7571,536+33%

06Madison County, ILIL263,1101,489−1%

07McHenry County, ILIL317,751840−29%

08St. Clair County, ILIL250,708560+8%

09Peoria County, ILIL178,553478+68%

10Kendall County, ILIL145,470461+32%

11Macoupin County, ILIL43,748424+18%

12Sangamon County, ILIL194,170338−30%

13McLean County, ILIL171,419306−14%

14Kankakee County, ILIL105,525299+102%

15Winnebago County, ILIL283,674290−18%

16DeKalb County, ILIL101,835289+25%

17LaSalle County, ILIL107,773285−17%

18Fulton County, ILIL32,901282−33%

19Grundy County, ILIL54,052266−26%

20Champaign County, ILIL209,972240+33%

21Rock Island County, ILIL141,869221−54%

22Tazewell County, ILIL130,049142−51%

23Marshall County, ILIL11,473108+238%

24Monroe County, ILIL34,840107+328%

25Knox County, ILIL47,767102+85%

26Jackson County, ILIL52,50192+197%

27Williamson County, ILIL67,22585−37%

28Livingston County, ILIL35,05774−36%

29Woodford County, ILIL38,11163+66%

30Adams County, ILIL64,26760+40%

31Logan County, ILIL27,18257+256%

32Macon County, ILIL99,30055−52%

33Franklin County, ILIL36,91648−69%

34Vermilion County, ILIL71,25948−46%

35Coles County, ILIL46,60746+229%

36Mercer County, ILIL15,22946+53%

37Jefferson County, ILIL36,14744+63%

38Henry County, ILIL48,09541−36%

39Jo Daviess County, ILIL21,59441+486%

40Greene County, ILIL11,31340–

41Henderson County, ILIL5,98438+375%

42Richland County, ILIL15,21936–

43Marion County, ILIL36,38234+240%

44Montgomery County, ILIL28,07634−48%

45Jersey County, ILIL21,16033−73%

46Carroll County, ILIL15,419320%

47Edgar County, ILIL16,32332–

48Ogle County, ILIL51,39930+43%

49Wayne County, ILIL15,88229+480%

50Clinton County, ILIL37,12828+22%

51McDonough County, ILIL25,91626+4%

52Crawford County, ILIL18,64825+317%

53Douglas County, ILIL19,88023−8%

54Stephenson County, ILIL43,22022−61%

55White County, ILIL13,25022–

56Whiteside County, ILIL54,12121−70%

57Morgan County, ILIL32,51520−62%

58Bureau County, ILIL32,51019+19%

59Christian County, ILIL33,44318−61%

60Lee County, ILIL32,91414−79%

61Iroquois County, ILIL26,15011−74%

62Randolph County, ILIL29,92111−45%

63Gallatin County, ILIL4,61610+67%

64Union County, ILIL16,65610–

65Bond County, ILIL16,9599+50%

66Boone County, ILIL53,5689−88%

67Pike County, ILIL14,2319–

68Lawrence County, ILIL13,79080%

69Shelby County, ILIL20,5768−11%

70Effingham County, ILIL34,5197–

71Cumberland County, ILIL10,2086−78%

72Putnam County, ILIL5,6196−14%

73Mason County, ILIL12,4115+67%

74Saline County, ILIL22,7723–

75Cass County, ILIL12,46330%

76Clark County, ILIL15,1142−67%

77Ford County, ILIL13,2162–

78Johnson County, ILIL13,3632–

79Perry County, ILIL20,1602−95%

80De Witt County, ILIL15,1181−99%

SHOWING 1–80 OF 80

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UPDATED 2026-09-11 · DATA: US CENSUS BUREAU DECENNIAL CENSUS