RANKING · 2020 CENSUS · 102 SHOWN OF 102

Largest foreign-born population, Illinois counties · 2020

Illinois counties with the most residents born outside the United States, as of the 2020 American Community Survey. Ranked by number of people, not share. This list covers the 102 counties in Illinois that qualify, ranked against each other statewide.

IllinoisAll states All rankings

SAME RANKING BYCities States Metros

RELATEDMost residents with a disability Largest veteran population Most uninsured people Largest senior population Most unmarried people Most unmarried men

YEAR2010 2020 2024

RANKPLACESTATEPOPFOREIGN-BORN POPULATIONVS 2010

01Cook County, ILIL5,194,6251,100,594+1%

02DuPage County, ILIL934,298180,723+8%

03Lake County, ILIL719,339133,622+5%

04Kane County, ILIL525,75789,249−3%

05Will County, ILIL712,25384,203+9%

06McHenry County, ILIL317,75127,730−8%

07Champaign County, ILIL209,97225,419+16%

08Winnebago County, ILIL283,67425,003+11%

09Kendall County, ILIL145,47013,329+38%

10McLean County, ILIL171,41911,431+29%

11Rock Island County, ILIL141,86911,353+22%

12Peoria County, ILIL178,55310,253+31%

13St. Clair County, ILIL250,7087,913+21%

14DeKalb County, ILIL101,8356,539−11%

15Madison County, ILIL263,1106,079+4%

16Sangamon County, ILIL194,1705,985+5%

17Kankakee County, ILIL105,5255,488+9%

18Boone County, ILIL53,5684,771−13%

19LaSalle County, ILIL107,7733,999−1%

20Jackson County, ILIL52,5013,037+0%

21Macon County, ILIL99,3002,479+9%

22Tazewell County, ILIL130,0492,285+11%

23Ogle County, ILIL51,3992,051−24%

24Grundy County, ILIL54,0521,908+3%

25Whiteside County, ILIL54,1211,681+4%

26Knox County, ILIL47,7671,555+50%

27Cass County, ILIL12,4631,511+27%

28Vermilion County, ILIL71,2591,458−18%

29Bureau County, ILIL32,5101,254+18%

30Williamson County, ILIL67,2251,152+16%

31Lee County, ILIL32,914948+31%

32Stephenson County, ILIL43,220929−17%

33McDonough County, ILIL25,916904−10%

34Warren County, ILIL16,222882+19%

35Coles County, ILIL46,607869+3%

36Iroquois County, ILIL26,150861+11%

37Adams County, ILIL64,267828+16%

38Effingham County, ILIL34,519750+134%

39Henry County, ILIL48,095737−27%

40Woodford County, ILIL38,111690+22%

41Jefferson County, ILIL36,147670+46%

42Livingston County, ILIL35,057651−1%

43Douglas County, ILIL19,880605−27%

44Randolph County, ILIL29,921573+28%

45Clinton County, ILIL37,128566+6%

46Morgan County, ILIL32,515544+41%

47Jo Daviess County, ILIL21,594499−42%

48Monroe County, ILIL34,840478+65%

49Union County, ILIL16,656477+12%

50Logan County, ILIL27,182433+25%

51Macoupin County, ILIL43,748431−11%

52Christian County, ILIL33,443429−33%

53Marion County, ILIL36,382406−2%

54Fulton County, ILIL32,901405−57%

55Franklin County, ILIL36,916394+93%

56Fayette County, ILIL20,790371−4%

57Montgomery County, ILIL28,076355−13%

58Mercer County, ILIL15,229343+193%

59Perry County, ILIL20,160271−18%

60Wabash County, ILIL10,907271+195%

61Bond County, ILIL16,959254+26%

62Richland County, ILIL15,219240+8%

63Carroll County, ILIL15,419226−22%

64Shelby County, ILIL20,576225+3%

65Johnson County, ILIL13,363217−25%

66Jersey County, ILIL21,160208−0%

67Edgar County, ILIL16,323207+88%

68Piatt County, ILIL16,791205−2%

69Crawford County, ILIL18,648201−43%

70De Witt County, ILIL15,118200−30%

71Lawrence County, ILIL13,790197−20%

72Hancock County, ILIL16,803192+33%

73Marshall County, ILIL11,473187−21%

74Saline County, ILIL22,772182−30%

75Brown County, ILIL6,401179−4%

76Washington County, ILIL13,564173+154%

77Massac County, ILIL13,502168+66%

78Ford County, ILIL13,216162−35%

79Menard County, ILIL11,863132+257%

80White County, ILIL13,250130−25%

81Hamilton County, ILIL7,859125+942%

82Wayne County, ILIL15,882119−22%

83Schuyler County, ILIL6,657105−50%

84Moultrie County, ILIL14,371104−46%

85Putnam County, ILIL5,61997−20%

86Cumberland County, ILIL10,20896+174%

87Stark County, ILIL5,31994+68%

88Mason County, ILIL12,41193−59%

89Henderson County, ILIL5,98485−59%

90Pike County, ILIL14,23179−51%

91Clark County, ILIL15,11478−45%

92Jasper County, ILIL9,03277+48%

93Scott County, ILIL4,86674+68%

94Pope County, ILIL3,67259−17%

95Clay County, ILIL12,79354−52%

96Edwards County, ILIL5,89838−3%

97Calhoun County, ILIL4,30036−72%

98Pulaski County, ILIL4,82036−86%

99Greene County, ILIL11,31334−62%

100Gallatin County, ILIL4,61616−30%

101Hardin County, ILIL3,58816−67%

102Alexander County, ILIL4,57014−91%

SHOWING 1–102 OF 102

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