RANKING · 2010 CENSUS · 68 SHOWN OF 68

Largest Portuguese population, Illinois counties · 2010

Illinois counties ranked by the number of residents who are Portuguese 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 68 counties in Illinois that qualify, ranked against each other statewide. The median across all 68 is 49.

Portuguese Americans: full group profile →

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SAME RANKING BYCities States Metros

RELATEDLargest American population Highest American population share Largest Arab population Highest Arab population share Largest Egyptian population Highest Egyptian population share

YEAR2010 2020 2024

RANKPLACESTATEPOPPORTUGUESE POPULATIONVS –

01Cook County, ILIL5,194,6252,483–

02DuPage County, ILIL934,298840–

03Lake County, ILIL719,339754–

04Sangamon County, ILIL194,170618–

05Morgan County, ILIL32,515452–

06Will County, ILIL712,253447–

07McHenry County, ILIL317,751403–

08Kane County, ILIL525,757366–

09Champaign County, ILIL209,972182–

10LaSalle County, ILIL107,773167–

11St. Clair County, ILIL250,708160–

12McLean County, ILIL171,419147–

13Madison County, ILIL263,110147–

14Macoupin County, ILIL43,748122–

15Kankakee County, ILIL105,525113–

16Macon County, ILIL99,300107–

17Grundy County, ILIL54,052104–

18Peoria County, ILIL178,553103–

19Vermilion County, ILIL71,259101–

20DeKalb County, ILIL101,83595–

21Whiteside County, ILIL54,12195–

22Tazewell County, ILIL130,04994–

23Knox County, ILIL47,76789–

24Williamson County, ILIL67,22589–

25Winnebago County, ILIL283,67475–

26Lee County, ILIL32,91472–

27Cass County, ILIL12,46368–

28Coles County, ILIL46,60768–

29Clark County, ILIL15,11461–

30Ogle County, ILIL51,39961–

31Kendall County, ILIL145,47059–

32Jersey County, ILIL21,16055–

33Shelby County, ILIL20,57653–

34Clinton County, ILIL37,12849–

35Adams County, ILIL64,26746–

36Greene County, ILIL11,31344–

37Rock Island County, ILIL141,86944–

38Scott County, ILIL4,86641–

39Hardin County, ILIL3,58839–

40Woodford County, ILIL38,11139–

41Stephenson County, ILIL43,22036–

42Perry County, ILIL20,16035–

43Henry County, ILIL48,09531–

44Marion County, ILIL36,38227–

45Jackson County, ILIL52,50125–

46Logan County, ILIL27,18224–

47Boone County, ILIL53,56823–

48Menard County, ILIL11,86323–

49Piatt County, ILIL16,79116–

50Ford County, ILIL13,21615–

51Saline County, ILIL22,77215–

52Bureau County, ILIL32,51014–

53McDonough County, ILIL25,91614–

54Douglas County, ILIL19,88013–

55Effingham County, ILIL34,51913–

56Schuyler County, ILIL6,65713–

57Pope County, ILIL3,67212–

58Iroquois County, ILIL26,15011–

59Mason County, ILIL12,41111–

60Henderson County, ILIL5,9849–

61Monroe County, ILIL34,8409–

62Livingston County, ILIL35,0578–

63Stark County, ILIL5,3198–

64Gallatin County, ILIL4,6166–

65Jo Daviess County, ILIL21,5946–

66Christian County, ILIL33,4435–

67Washington County, ILIL13,5644–

68Cumberland County, ILIL10,2081–

SHOWING 1–68 OF 68

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