RANKING · 2020 CENSUS · 73 SHOWN OF 73

Largest Portuguese population, Illinois counties · 2020

Illinois counties ranked by the number of residents who are Portuguese 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 73 counties in Illinois that qualify, ranked against each other statewide. The median across all 73 is 30.

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 2010

01Cook County, ILIL5,194,6253,705+49%

02Lake County, ILIL719,339888+18%

03DuPage County, ILIL934,298830−1%

04Sangamon County, ILIL194,170461−25%

05Will County, ILIL712,253411−8%

06McHenry County, ILIL317,751408+1%

07Kane County, ILIL525,757387+6%

08St. Clair County, ILIL250,708242+51%

09Morgan County, ILIL32,515217−52%

10McLean County, ILIL171,419173+18%

11Madison County, ILIL263,110161+10%

12Whiteside County, ILIL54,121155+63%

13Champaign County, ILIL209,972146−20%

14Rock Island County, ILIL141,869142+223%

15LaSalle County, ILIL107,773127−24%

16Jackson County, ILIL52,501105+320%

17Winnebago County, ILIL283,67484+12%

18Peoria County, ILIL178,55380−22%

19Williamson County, ILIL67,22568−24%

20Coles County, ILIL46,60767−1%

21Monroe County, ILIL34,84065+622%

22Tazewell County, ILIL130,04960−36%

23Washington County, ILIL13,56459+1375%

24Effingham County, ILIL34,51959+354%

25Fulton County, ILIL32,90159–

26Adams County, ILIL64,26756+22%

27Ford County, ILIL13,21656+273%

28Cass County, ILIL12,46355−19%

29Greene County, ILIL11,31355+25%

30Piatt County, ILIL16,79155+244%

31DeKalb County, ILIL101,83550−47%

32Kankakee County, ILIL105,52541−64%

33Kendall County, ILIL145,47040−32%

34Knox County, ILIL47,76737−58%

35Randolph County, ILIL29,92136–

36Macon County, ILIL99,30035−67%

37Richland County, ILIL15,21930–

38Scott County, ILIL4,86625−39%

39Bureau County, ILIL32,51024+71%

40Henry County, ILIL48,09524−23%

41Macoupin County, ILIL43,74824−80%

42Montgomery County, ILIL28,07622–

43Douglas County, ILIL19,88021+62%

44Stephenson County, ILIL43,22020−44%

45Crawford County, ILIL18,64816–

46Christian County, ILIL33,44316+220%

47Warren County, ILIL16,22216–

48Ogle County, ILIL51,39915−75%

49De Witt County, ILIL15,11813–

50Pike County, ILIL14,23111–

51Gallatin County, ILIL4,61610+67%

52Hancock County, ILIL16,80310–

53Jefferson County, ILIL36,14710–

54Cumberland County, ILIL10,2089+800%

55Fayette County, ILIL20,7909–

56Logan County, ILIL27,1829−63%

57Iroquois County, ILIL26,1508−27%

58Edgar County, ILIL16,3237–

59Clinton County, ILIL37,1286−88%

60Woodford County, ILIL38,1116−85%

61Jersey County, ILIL21,1606−89%

62McDonough County, ILIL25,9166−57%

63Livingston County, ILIL35,0575−38%

64Menard County, ILIL11,8635−78%

65Union County, ILIL16,6565–

66Carroll County, ILIL15,4193–

67Wayne County, ILIL15,8823–

68Franklin County, ILIL36,9163–

69Hamilton County, ILIL7,8593–

70Marion County, ILIL36,3823−89%

71Mason County, ILIL12,4113−73%

72Mercer County, ILIL15,2293–

73White County, ILIL13,2502–

SHOWING 1–73 OF 73

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