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. The median across all 102 is 1,638. Biggest climber in the top 100 since 2020: Montgomery County, IL, up 22 places to #25.

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IllinoisAll states All rankings

SAME RANKING BYCities States Metros

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%

07▲1St. Clair County, ILIL250,70810,538−15%

08▼1Sangamon County, ILIL194,1709,739−48%

09▲1McHenry County, ILIL317,7518,905−21%

10▲4Tazewell County, ILIL130,0498,166−61%

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

12▲3Peoria County, ILIL178,5537,148−30%

13▲3McLean County, ILIL171,4197,025−63%

14▼2Champaign County, ILIL209,9726,272−72%

15▼2Macon County, ILIL99,3006,158−67%

16▼7Vermilion County, ILIL71,2595,076−71%

17▲1Rock Island County, ILIL141,8694,953−35%

18▲4LaSalle County, ILIL107,7734,942−28%

19▲2Williamson County, ILIL67,2253,959−33%

20▼1Adams County, ILIL64,2673,594−50%

21▲14Macoupin County, ILIL43,7483,560−22%

22▼5Whiteside County, ILIL54,1213,419−3%

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

24▲3DeKalb County, ILIL101,8353,408−14%

25▲22Montgomery County, ILIL28,0763,389+14%

26▲3Effingham County, ILIL34,5193,1950%

27▲5Christian County, ILIL33,4433,163−15%

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

29▲2Marion County, ILIL36,3822,948−31%

30▲6Henry County, ILIL48,0952,933−19%

31▼11Coles County, ILIL46,6072,771−53%

32▲1Kendall County, ILIL145,4702,706−21%

33▲8Morgan County, ILIL32,5152,625−66%

34▲6Jefferson County, ILIL36,1472,585−35%

35▲7Fayette County, ILIL20,7902,414+16%

36▲12Jersey County, ILIL21,1602,393+21%

37Fulton County, ILIL32,9012,371−67%

38▼12Knox County, ILIL47,7672,358−44%

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

40▲6Shelby County, ILIL20,5762,131−3%

41▲16Iroquois County, ILIL26,1502,023−45%

42▲1Woodford County, ILIL38,1111,990−41%

43▼5Ogle County, ILIL51,3991,928−43%

44▲6Livingston County, ILIL35,0571,895−57%

45▲22Grundy County, ILIL54,0521,862+29%

46▲7Monroe County, ILIL34,8401,834−8%

47▲5Saline County, ILIL22,7721,754−46%

48▲3Randolph County, ILIL29,9211,733−10%

49▼24McDonough County, ILIL25,9161,657−66%

50▼16Jackson County, ILIL52,5011,646−52%

51▲11Douglas County, ILIL19,8801,638−35%

52▲11Clay County, ILIL12,7931,534−24%

53▲7White County, ILIL13,2501,504−27%

54▲16Boone County, ILIL53,5681,502−68%

55Pike County, ILIL14,2311,488−47%

56Logan County, ILIL27,1821,487−72%

57▲20Greene County, ILIL11,3131,448−14%

58▲20Lawrence County, ILIL13,7901,432−18%

59▼10Jo Daviess County, ILIL21,5941,399−27%

60▼2Crawford County, ILIL18,6481,397−51%

61▲3Bureau County, ILIL32,5101,368−58%

62▼38Stephenson County, ILIL43,2201,368−64%

63▼33Hancock County, ILIL16,8031,366−46%

64▼19Carroll County, ILIL15,4191,296−22%

65▲6Wayne County, ILIL15,8821,295−39%

66▼7Richland County, ILIL15,2191,289−32%

67▼28Lee County, ILIL32,9141,274−57%

68Clark County, ILIL15,1141,218−32%

69▼8Edgar County, ILIL16,3231,215−48%

70▼5Moultrie County, ILIL14,3711,139−32%

71▼5Bond County, ILIL16,9591,138−24%

72▼18De Witt County, ILIL15,1181,079−79%

73▼4Warren County, ILIL16,2221,073+10%

74▼2Ford County, ILIL13,2161,043−46%

75▲11Piatt County, ILIL16,791993−73%

76▲5Perry County, ILIL20,160971−47%

77▲3Massac County, ILIL13,502951−28%

78▲4Mercer County, ILIL15,229891−27%

79▼5Johnson County, ILIL13,363861+4%

80▼5Union County, ILIL16,656845−42%

81▼2Cumberland County, ILIL10,208843−56%

82▲5Marshall County, ILIL11,473813+3%

83▲1Mason County, ILIL12,411799−66%

84▼11Wabash County, ILIL10,907784−45%

85▼9Jasper County, ILIL9,032684−44%

86▲5Hamilton County, ILIL7,859674−22%

87▲1Edwards County, ILIL5,898664−26%

88▼3Menard County, ILIL11,863642−76%

89▲1Washington County, ILIL13,564640−29%

90▼7Cass County, ILIL12,463552−81%

91▼2Schuyler County, ILIL6,657537−73%

92Scott County, ILIL4,866514−61%

93Brown County, ILIL6,401477−56%

94▲1Henderson County, ILIL5,984474+27%

95▲1Gallatin County, ILIL4,616393−3%

96▼2Pope County, ILIL3,672338+41%

97Stark County, ILIL5,319329−50%

98▲2Putnam County, ILIL5,619241+15%

99▲2Alexander County, ILIL4,570237−41%

100▼2Hardin County, ILIL3,588226+18%

101▼2Pulaski County, ILIL4,820221−47%

102Calhoun County, ILIL4,300194−74%

SHOWING 1–102 OF 102

Download CSV (full list, 102 rows)

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