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 (2024 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. The median across all 75 is 0.1%. Biggest climber in the top 100 since 2020: Putnam County, IL, up 43 places to #3.

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IllinoisAll states All rankings

SAME RANKING BYCities States Metros

YEAR2010 2020 2024

RANKPLACESTATEPOPCROATIAN SHAREVS 2010

01▲6Grundy County, ILIL54,0521.1%+0.4 pts

02▲1Fulton County, ILIL32,9011.0%−0.2 pts

03▲43Putnam County, ILIL5,6190.9%+0.7 pts

04▼2Marshall County, ILIL11,4730.8%+0.6 pts

05▼1Will County, ILIL712,2530.6%−0.3 pts

06Madison County, ILIL263,1100.5%0.0 pts

07▼2Henderson County, ILIL5,9840.5%+0.4 pts

08DuPage County, ILIL934,2980.5%−0.1 pts

09▼8Macoupin County, ILIL43,7480.5%−0.3 pts

10▲30Franklin County, ILIL36,9160.4%0.0 pts

11▲30Montgomery County, ILIL28,0760.4%+0.2 pts

12▼1Monroe County, ILIL34,8400.4%+0.3 pts

13▲42Union County, ILIL16,6560.4%–

14▲14Jo Daviess County, ILIL21,5940.4%+0.3 pts

15▲6Richland County, ILIL15,2190.4%–

16▲18White County, ILIL13,2500.4%–

17▼8Kendall County, ILIL145,4700.3%0.0 pts

18▼8Cook County, ILIL5,194,6250.3%−0.1 pts

19▲4St. Clair County, ILIL250,7080.2%0.0 pts

20Lake County, ILIL719,3390.2%−0.1 pts

21▼5McHenry County, ILIL317,7510.2%−0.2 pts

22▼4Peoria County, ILIL178,5530.2%+0.1 pts

23▲22Tazewell County, ILIL130,0490.2%0.0 pts

24▼7Kankakee County, ILIL105,5250.2%+0.1 pts

25▲42Iroquois County, ILIL26,1500.2%0.0 pts

26▼7LaSalle County, ILIL107,7730.2%−0.1 pts

27▲4McLean County, ILIL171,4190.2%0.0 pts

28▲11Williamson County, ILIL67,2250.2%0.0 pts

29▼15Kane County, ILIL525,7570.2%−0.1 pts

30▲8Crawford County, ILIL18,6480.2%+0.1 pts

31▲5Rock Island County, ILIL141,8690.2%−0.2 pts

32Scott County, ILIL4,8660.1%–

33▼7Gallatin County, ILIL4,6160.1%0.0 pts

34▼2Sangamon County, ILIL194,1700.1%−0.1 pts

35▲12Winnebago County, ILIL283,6740.1%0.0 pts

36▲16Henry County, ILIL48,0950.1%0.0 pts

37Jersey County, ILIL21,1600.1%−0.4 pts

38▲25Macon County, ILIL99,3000.1%0.0 pts

39▲40Perry County, ILIL20,1600.1%−0.1 pts

40Fayette County, ILIL20,7900.1%+0.1 pts

41▲2Jefferson County, ILIL36,1470.1%0.0 pts

42▲7Marion County, ILIL36,3820.1%+0.1 pts

43▼18Knox County, ILIL47,7670.1%0.0 pts

44Menard County, ILIL11,8630.1%−0.1 pts

45▼3Douglas County, ILIL19,8800.1%0.0 pts

46Piatt County, ILIL16,7910.1%−0.4 pts

47Stark County, ILIL5,3190.1%0.0 pts

48▲21Mason County, ILIL12,4110.1%+0.1 pts

49▲29Saline County, ILIL22,7720.1%–

50▼37Mercer County, ILIL15,2290.1%−0.1 pts

51McDonough County, ILIL25,9160.1%0.0 pts

52▼8Champaign County, ILIL209,9720.1%0.0 pts

53▲6Bureau County, ILIL32,5100.1%0.0 pts

54▲20Boone County, ILIL53,5680.1%−0.1 pts

55▼40DeKalb County, ILIL101,8350.1%−0.1 pts

56▲5Christian County, ILIL33,4430.1%−0.1 pts

57▼30Logan County, ILIL27,1820.1%0.0 pts

58▲15Effingham County, ILIL34,5190.1%–

59▲11Shelby County, ILIL20,5760.1%0.0 pts

60▼25Jackson County, ILIL52,5010.1%0.0 pts

61▲15Ford County, ILIL13,2160.1%–

62▼12Coles County, ILIL46,6070.1%0.0 pts

63▲5Whiteside County, ILIL54,1210.1%−0.1 pts

64▲1Stephenson County, ILIL43,2200.1%−0.1 pts

65Calhoun County, ILIL4,3000.0%–

66▼44Carroll County, ILIL15,4190.0%−0.2 pts

67▼14Clinton County, ILIL37,1280.0%0.0 pts

68▼14Vermilion County, ILIL71,2590.0%−0.1 pts

69▼39Wayne County, ILIL15,8820.0%0.0 pts

70▲2Cass County, ILIL12,4630.0%0.0 pts

71▼15Ogle County, ILIL51,3990.0%0.0 pts

72Warren County, ILIL16,2220.0%0.0 pts

73▼7Lee County, ILIL32,9140.0%−0.2 pts

74Washington County, ILIL13,5640.0%−0.1 pts

75▼51Livingston County, ILIL35,0570.0%−0.3 pts

SHOWING 1–75 OF 75

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UPDATED 2026-09-11 · DATA: US CENSUS BUREAU ACS 5-YEAR ESTIMATES