RANKING · 2020 CENSUS · 102 SHOWN OF 102

Largest American population, Illinois counties · 2020

Illinois counties ranked by the number of residents who are American 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 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, ILIL5,194,625115,878+42%

02DuPage County, ILIL934,29825,915+30%

03Lake County, ILIL719,33923,348−16%

04Will County, ILIL712,25317,043+22%

05Kane County, ILIL525,75714,736+23%

06Madison County, ILIL263,11014,348−28%

07Sangamon County, ILIL194,17010,857−42%

08St. Clair County, ILIL250,70810,832−12%

09Vermilion County, ILIL71,25910,675−39%

10McHenry County, ILIL317,7519,202−18%

11Winnebago County, ILIL283,6748,851−68%

12Champaign County, ILIL209,9728,537−62%

13Macon County, ILIL99,3008,167−57%

14Tazewell County, ILIL130,0498,137−61%

15Peoria County, ILIL178,5538,129−20%

16McLean County, ILIL171,4197,326−61%

17Whiteside County, ILIL54,1215,972+70%

18Rock Island County, ILIL141,8695,099−33%

19Adams County, ILIL64,2674,861−32%

20Coles County, ILIL46,6074,527−24%

21Williamson County, ILIL67,2254,441−24%

22LaSalle County, ILIL107,7734,127−39%

23Kankakee County, ILIL105,5253,929−2%

24Stephenson County, ILIL43,2203,637−5%

25McDonough County, ILIL25,9163,424−29%

26Knox County, ILIL47,7673,328−22%

27DeKalb County, ILIL101,8353,313−16%

28Franklin County, ILIL36,9163,199−14%

29Effingham County, ILIL34,5193,177−1%

30Hancock County, ILIL16,8033,173+25%

31Marion County, ILIL36,3823,092−28%

32Christian County, ILIL33,4433,086−17%

33Kendall County, ILIL145,4703,041−11%

34Jackson County, ILIL52,5013,023−12%

35Macoupin County, ILIL43,7482,997−34%

36Henry County, ILIL48,0952,961−18%

37Fulton County, ILIL32,9012,842−60%

38Ogle County, ILIL51,3992,809−17%

39Lee County, ILIL32,9142,762−6%

40Jefferson County, ILIL36,1472,636−34%

41Morgan County, ILIL32,5152,629−66%

42Fayette County, ILIL20,7902,571+24%

43Woodford County, ILIL38,1112,569−24%

44Clinton County, ILIL37,1282,527+20%

45Carroll County, ILIL15,4192,480+49%

46Shelby County, ILIL20,5762,362+7%

47Montgomery County, ILIL28,0762,322−22%

48Jersey County, ILIL21,1602,255+14%

49Jo Daviess County, ILIL21,5942,122+10%

50Livingston County, ILIL35,0572,122−51%

51Randolph County, ILIL29,9212,060+7%

52Monroe County, ILIL34,8402,050+3%

53Saline County, ILIL22,7722,050−37%

54De Witt County, ILIL15,1181,855−64%

55Pike County, ILIL14,2311,823−35%

56Logan County, ILIL27,1821,804−66%

57Iroquois County, ILIL26,1501,765−52%

58Crawford County, ILIL18,6481,718−40%

59Richland County, ILIL15,2191,676−12%

60White County, ILIL13,2501,667−19%

61Edgar County, ILIL16,3231,665−28%

62Douglas County, ILIL19,8801,625−36%

63Clay County, ILIL12,7931,617−20%

64Bureau County, ILIL32,5101,607−50%

65Moultrie County, ILIL14,3711,598−5%

66Bond County, ILIL16,9591,519+1%

67Grundy County, ILIL54,0521,415−2%

68Clark County, ILIL15,1141,400−22%

69Warren County, ILIL16,2221,347+38%

70Boone County, ILIL53,5681,309−72%

71Wayne County, ILIL15,8821,263−41%

72Ford County, ILIL13,2161,203−37%

73Wabash County, ILIL10,9071,203−15%

74Johnson County, ILIL13,3631,185+43%

75Union County, ILIL16,6561,157−20%

76Jasper County, ILIL9,0321,155−5%

77Greene County, ILIL11,3131,107−34%

78Lawrence County, ILIL13,7901,096−37%

79Cumberland County, ILIL10,2081,039−46%

80Massac County, ILIL13,5021,028−22%

81Perry County, ILIL20,1601,026−44%

82Mercer County, ILIL15,229998−18%

83Cass County, ILIL12,463993−65%

84Mason County, ILIL12,411990−57%

85Menard County, ILIL11,863953−64%

86Piatt County, ILIL16,791953−74%

87Marshall County, ILIL11,473829+5%

88Edwards County, ILIL5,898809−10%

89Schuyler County, ILIL6,657752−63%

90Washington County, ILIL13,564673−26%

91Hamilton County, ILIL7,859661−24%

92Scott County, ILIL4,866561−57%

93Brown County, ILIL6,401477−56%

94Pope County, ILIL3,672427+79%

95Henderson County, ILIL5,984356−5%

96Gallatin County, ILIL4,616316−22%

97Stark County, ILIL5,319294−55%

98Hardin County, ILIL3,588290+52%

99Pulaski County, ILIL4,820288−31%

100Putnam County, ILIL5,619286+36%

101Alexander County, ILIL4,570276−31%

102Calhoun County, ILIL4,300242−68%

SHOWING 1–102 OF 102

Download CSV (full list, 102 rows)

UPDATED 2026-07-15 · DATA: US CENSUS BUREAU DECENNIAL CENSUS