RANKING · 2010 CENSUS · 102 SHOWN OF 102

Largest American population, Illinois counties · 2010

Illinois counties ranked by the number of residents who are American ancestry, from the 2010 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 2,867.

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 –

01Cook County, ILIL5,194,62581,737–

02Lake County, ILIL719,33927,837–

03Winnebago County, ILIL283,67427,680–

04Champaign County, ILIL209,97222,670–

05Tazewell County, ILIL130,04920,860–

06Madison County, ILIL263,11020,063–

07DuPage County, ILIL934,29819,903–

08McLean County, ILIL171,41918,928–

09Macon County, ILIL99,30018,788–

10Sangamon County, ILIL194,17018,588–

11Vermilion County, ILIL71,25917,364–

12Will County, ILIL712,25314,005–

13St. Clair County, ILIL250,70812,374–

14Kane County, ILIL525,75711,997–

15McHenry County, ILIL317,75111,233–

16Peoria County, ILIL178,55310,194–

17Morgan County, ILIL32,5157,733–

18Rock Island County, ILIL141,8697,647–

19Adams County, ILIL64,2677,143–

20Fulton County, ILIL32,9017,117–

21LaSalle County, ILIL107,7736,821–

22Coles County, ILIL46,6075,935–

23Williamson County, ILIL67,2255,878–

24Logan County, ILIL27,1825,296–

25De Witt County, ILIL15,1185,198–

26McDonough County, ILIL25,9164,806–

27Boone County, ILIL53,5684,626–

28Macoupin County, ILIL43,7484,556–

29Livingston County, ILIL35,0574,368–

30Marion County, ILIL36,3824,281–

31Knox County, ILIL47,7674,242–

32Kankakee County, ILIL105,5254,001–

33Jefferson County, ILIL36,1473,980–

34DeKalb County, ILIL101,8353,947–

35Stephenson County, ILIL43,2203,828–

36Franklin County, ILIL36,9163,733–

37Christian County, ILIL33,4433,705–

38Iroquois County, ILIL26,1503,663–

39Piatt County, ILIL16,7913,662–

40Henry County, ILIL48,0953,630–

41Whiteside County, ILIL54,1213,518–

42Kendall County, ILIL145,4703,430–

43Jackson County, ILIL52,5013,422–

44Ogle County, ILIL51,3993,404–

45Woodford County, ILIL38,1113,361–

46Bureau County, ILIL32,5103,242–

47Saline County, ILIL22,7723,238–

48Effingham County, ILIL34,5193,195–

49Montgomery County, ILIL28,0762,975–

50Lee County, ILIL32,9142,945–

51Crawford County, ILIL18,6482,867–

52Cass County, ILIL12,4632,863–

53Pike County, ILIL14,2312,786–

54Menard County, ILIL11,8632,639–

55Hancock County, ILIL16,8032,547–

56Douglas County, ILIL19,8802,525–

57Mason County, ILIL12,4112,324–

58Edgar County, ILIL16,3232,318–

59Shelby County, ILIL20,5762,201–

60Wayne County, ILIL15,8822,132–

61Clinton County, ILIL37,1282,111–

62Fayette County, ILIL20,7902,074–

63White County, ILIL13,2502,066–

64Clay County, ILIL12,7932,030–

65Schuyler County, ILIL6,6572,019–

66Monroe County, ILIL34,8402,000–

67Jersey County, ILIL21,1601,979–

68Jo Daviess County, ILIL21,5941,929–

69Randolph County, ILIL29,9211,925–

70Cumberland County, ILIL10,2081,922–

71Ford County, ILIL13,2161,915–

72Richland County, ILIL15,2191,898–

73Perry County, ILIL20,1601,831–

74Clark County, ILIL15,1141,787–

75Lawrence County, ILIL13,7901,747–

76Greene County, ILIL11,3131,686–

77Moultrie County, ILIL14,3711,676–

78Carroll County, ILIL15,4191,660–

79Bond County, ILIL16,9591,501–

80Union County, ILIL16,6561,455–

81Grundy County, ILIL54,0521,445–

82Wabash County, ILIL10,9071,421–

83Massac County, ILIL13,5021,318–

84Scott County, ILIL4,8661,305–

85Mercer County, ILIL15,2291,219–

86Jasper County, ILIL9,0321,217–

87Brown County, ILIL6,4011,075–

88Warren County, ILIL16,222979–

89Washington County, ILIL13,564907–

90Edwards County, ILIL5,898895–

91Hamilton County, ILIL7,859868–

92Johnson County, ILIL13,363827–

93Marshall County, ILIL11,473787–

94Calhoun County, ILIL4,300753–

95Stark County, ILIL5,319656–

96Pulaski County, ILIL4,820416–

97Gallatin County, ILIL4,616406–

98Alexander County, ILIL4,570399–

99Henderson County, ILIL5,984373–

100Pope County, ILIL3,672239–

101Putnam County, ILIL5,619210–

102Hardin County, ILIL3,588191–

SHOWING 1–102 OF 102

Download CSV (full list, 102 rows)

UPDATED 2026-09-11 · DATA: US CENSUS BUREAU DECENNIAL CENSUS