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.

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%

23Fulton County, ILIL32,90159–

24Effingham County, ILIL34,51959+354%

25Washington County, ILIL13,56459+1375%

26Ford County, ILIL13,21656+273%

27Adams County, ILIL64,26756+22%

28Piatt County, ILIL16,79155+244%

29Cass County, ILIL12,46355−19%

30Greene County, ILIL11,31355+25%

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%

39Henry County, ILIL48,09524−23%

40Macoupin County, ILIL43,74824−80%

41Bureau County, ILIL32,51024+71%

42Montgomery County, ILIL28,07622–

43Douglas County, ILIL19,88021+62%

44Stephenson County, ILIL43,22020−44%

45Warren County, ILIL16,22216–

46Christian County, ILIL33,44316+220%

47Crawford County, ILIL18,64816–

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–

59Jersey County, ILIL21,1606−89%

60McDonough County, ILIL25,9166−57%

61Woodford County, ILIL38,1116−85%

62Clinton County, ILIL37,1286−88%

63Livingston County, ILIL35,0575−38%

64Menard County, ILIL11,8635−78%

65Union County, ILIL16,6565–

66Carroll County, ILIL15,4193–

67Mason County, ILIL12,4113−73%

68Mercer County, ILIL15,2293–

69Wayne County, ILIL15,8823–

70Franklin County, ILIL36,9163–

71Hamilton County, ILIL7,8593–

72Marion County, ILIL36,3823−89%

73White County, ILIL13,2502–

SHOWING 1–73 OF 73

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