RANKING · 2024 ACS · 75 SHOWN OF 75

Largest Croatian population, Illinois counties

Illinois counties ranked by the number of residents who are Croatian ancestry, from the 2024 American Community Survey detailed-origin tables. Each list covers the full eligible universe; download the complete data as CSV. This list covers the 75 counties in Illinois that qualify, ranked against each other statewide.

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, ILIL5,194,62515,378−18%

02DuPage County, ILIL934,2984,554−8%

03Will County, ILIL712,2534,455−31%

04Lake County, ILIL719,3391,717−37%

05Madison County, ILIL263,1101,366−9%

06Kane County, ILIL525,757851−26%

07McHenry County, ILIL317,751702−41%

08St. Clair County, ILIL250,708615+19%

09Grundy County, ILIL54,052586+64%

10Kendall County, ILIL145,470438+25%

11Peoria County, ILIL178,553368+29%

12Winnebago County, ILIL283,674332−6%

13Fulton County, ILIL32,901317−25%

14McLean County, ILIL171,419308−13%

15Tazewell County, ILIL130,049258−11%

16Sangamon County, ILIL194,170241−50%

17Rock Island County, ILIL141,869221−54%

18Macoupin County, ILIL43,748201−44%

19Kankakee County, ILIL105,525198+34%

20LaSalle County, ILIL107,773196−43%

21Champaign County, ILIL209,972178−2%

22Franklin County, ILIL36,916143−7%

23Monroe County, ILIL34,840133+432%

24Williamson County, ILIL67,225119−11%

25Macon County, ILIL99,300114+0%

26Montgomery County, ILIL28,076107+65%

27Marshall County, ILIL11,47395+197%

28Jo Daviess County, ILIL21,59482+1071%

29DeKalb County, ILIL101,83573−68%

30Union County, ILIL16,65664–

31Richland County, ILIL15,21957–

32Henry County, ILIL48,09555−14%

33Knox County, ILIL47,76749−11%

34Iroquois County, ILIL26,15048+12%

35Putnam County, ILIL5,61948+586%

36White County, ILIL13,25048–

37Boone County, ILIL53,56842−45%

38Jefferson County, ILIL36,14738+41%

39Marion County, ILIL36,38237+270%

40Henderson County, ILIL5,98431+288%

41Crawford County, ILIL18,64830+400%

42Jackson County, ILIL52,50129−6%

43Whiteside County, ILIL54,12128−59%

44Bureau County, ILIL32,51026+63%

45Vermilion County, ILIL71,25925−72%

46Coles County, ILIL46,60724+71%

47Jersey County, ILIL21,16024−80%

48Fayette County, ILIL20,79023+188%

49McDonough County, ILIL25,91623−8%

50Perry County, ILIL20,16023−48%

51Stephenson County, ILIL43,22022−61%

52Saline County, ILIL22,77221–

53Christian County, ILIL33,44321−54%

54Effingham County, ILIL34,51920–

55Douglas County, ILIL19,88019−24%

56Logan County, ILIL27,18217+6%

57Piatt County, ILIL16,79116−82%

58Clinton County, ILIL37,12814−39%

59Mercer County, ILIL15,22914−53%

60Mason County, ILIL12,41112+300%

61Menard County, ILIL11,86312−60%

62Shelby County, ILIL20,57612+33%

63Ford County, ILIL13,2167–

64Ogle County, ILIL51,3997−67%

65Scott County, ILIL4,8667–

66Carroll County, ILIL15,4196−81%

67Gallatin County, ILIL4,6166+0%

68Stark County, ILIL5,3195−29%

69Wayne County, ILIL15,8825+0%

70Lee County, ILIL32,9144−94%

71Cass County, ILIL12,4633+0%

72Calhoun County, ILIL4,3002–

73Warren County, ILIL16,2222−33%

74Livingston County, ILIL35,0571−99%

75Washington County, ILIL13,5641−95%

SHOWING 1–75 OF 75

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UPDATED 2026-07-15 · DATA: US CENSUS BUREAU ACS 5-YEAR ESTIMATES