RANKING · 2024 ACS · 102 SHOWN OF 102

Largest American population, Illinois counties

Illinois counties ranked by the number of residents who are American 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 102 counties in Illinois that qualify, ranked against each other statewide.

American ancestry: full group profile →

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SAME RANKING BYCities States Metros

RELATEDHighest American population share Largest Arab population Highest Arab population share Largest Egyptian population Highest Egyptian population share Largest Iraqi population

YEAR2010 2020 2024

RANKPLACESTATEPOPAMERICAN POPULATIONVS 2010

01Cook County, ILIL5,194,625116,337+42%

02DuPage County, ILIL934,29824,483+23%

03Lake County, ILIL719,33923,897−14%

04Will County, ILIL712,25317,646+26%

05Kane County, ILIL525,75714,127+18%

06Madison County, ILIL263,11012,867−36%

07St. Clair County, ILIL250,70810,538−15%

08Sangamon County, ILIL194,1709,739−48%

09McHenry County, ILIL317,7518,905−21%

10Tazewell County, ILIL130,0498,166−61%

11Winnebago County, ILIL283,6748,127−71%

12Peoria County, ILIL178,5537,148−30%

13McLean County, ILIL171,4197,025−63%

14Champaign County, ILIL209,9726,272−72%

15Macon County, ILIL99,3006,158−67%

16Vermilion County, ILIL71,2595,076−71%

17Rock Island County, ILIL141,8694,953−35%

18LaSalle County, ILIL107,7734,942−28%

19Williamson County, ILIL67,2253,959−33%

20Adams County, ILIL64,2673,594−50%

21Macoupin County, ILIL43,7483,560−22%

22Whiteside County, ILIL54,1213,419−3%

23Kankakee County, ILIL105,5253,418−15%

24DeKalb County, ILIL101,8353,408−14%

25Montgomery County, ILIL28,0763,389+14%

26Effingham County, ILIL34,5193,195+0%

27Christian County, ILIL33,4433,163−15%

28Franklin County, ILIL36,9163,048−18%

29Marion County, ILIL36,3822,948−31%

30Henry County, ILIL48,0952,933−19%

31Coles County, ILIL46,6072,771−53%

32Kendall County, ILIL145,4702,706−21%

33Morgan County, ILIL32,5152,625−66%

34Jefferson County, ILIL36,1472,585−35%

35Fayette County, ILIL20,7902,414+16%

36Jersey County, ILIL21,1602,393+21%

37Fulton County, ILIL32,9012,371−67%

38Knox County, ILIL47,7672,358−44%

39Clinton County, ILIL37,1282,223+5%

40Shelby County, ILIL20,5762,131−3%

41Iroquois County, ILIL26,1502,023−45%

42Woodford County, ILIL38,1111,990−41%

43Ogle County, ILIL51,3991,928−43%

44Livingston County, ILIL35,0571,895−57%

45Grundy County, ILIL54,0521,862+29%

46Monroe County, ILIL34,8401,834−8%

47Saline County, ILIL22,7721,754−46%

48Randolph County, ILIL29,9211,733−10%

49McDonough County, ILIL25,9161,657−66%

50Jackson County, ILIL52,5011,646−52%

51Douglas County, ILIL19,8801,638−35%

52Clay County, ILIL12,7931,534−24%

53White County, ILIL13,2501,504−27%

54Boone County, ILIL53,5681,502−68%

55Pike County, ILIL14,2311,488−47%

56Logan County, ILIL27,1821,487−72%

57Greene County, ILIL11,3131,448−14%

58Lawrence County, ILIL13,7901,432−18%

59Jo Daviess County, ILIL21,5941,399−27%

60Crawford County, ILIL18,6481,397−51%

61Bureau County, ILIL32,5101,368−58%

62Stephenson County, ILIL43,2201,368−64%

63Hancock County, ILIL16,8031,366−46%

64Carroll County, ILIL15,4191,296−22%

65Wayne County, ILIL15,8821,295−39%

66Richland County, ILIL15,2191,289−32%

67Lee County, ILIL32,9141,274−57%

68Clark County, ILIL15,1141,218−32%

69Edgar County, ILIL16,3231,215−48%

70Moultrie County, ILIL14,3711,139−32%

71Bond County, ILIL16,9591,138−24%

72De Witt County, ILIL15,1181,079−79%

73Warren County, ILIL16,2221,073+10%

74Ford County, ILIL13,2161,043−46%

75Piatt County, ILIL16,791993−73%

76Perry County, ILIL20,160971−47%

77Massac County, ILIL13,502951−28%

78Mercer County, ILIL15,229891−27%

79Johnson County, ILIL13,363861+4%

80Union County, ILIL16,656845−42%

81Cumberland County, ILIL10,208843−56%

82Marshall County, ILIL11,473813+3%

83Mason County, ILIL12,411799−66%

84Wabash County, ILIL10,907784−45%

85Jasper County, ILIL9,032684−44%

86Hamilton County, ILIL7,859674−22%

87Edwards County, ILIL5,898664−26%

88Menard County, ILIL11,863642−76%

89Washington County, ILIL13,564640−29%

90Cass County, ILIL12,463552−81%

91Schuyler County, ILIL6,657537−73%

92Scott County, ILIL4,866514−61%

93Brown County, ILIL6,401477−56%

94Henderson County, ILIL5,984474+27%

95Gallatin County, ILIL4,616393−3%

96Pope County, ILIL3,672338+41%

97Stark County, ILIL5,319329−50%

98Putnam County, ILIL5,619241+15%

99Alexander County, ILIL4,570237−41%

100Hardin County, ILIL3,588226+18%

101Pulaski County, ILIL4,820221−47%

102Calhoun County, ILIL4,300194−74%

SHOWING 1–102 OF 102

Download CSV (full list, 102 rows)

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