RANKING · 2020 CENSUS · 102 SHOWN OF 102

Largest Polish population, Illinois counties · 2020

Illinois counties ranked by the number of residents who are Polish 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 102 counties in Illinois that qualify, ranked against each other statewide.

Polish 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

RANKPLACESTATEPOPPOLISH POPULATIONVS 2010

01Cook County, ILIL5,194,625399,234−18%

02DuPage County, ILIL934,29895,443−14%

03Will County, ILIL712,25380,777−9%

04Lake County, ILIL719,33958,797−10%

05McHenry County, ILIL317,75138,520−11%

06Kane County, ILIL525,75736,926−7%

07Kendall County, ILIL145,47010,435+4%

08Winnebago County, ILIL283,6749,677−11%

09LaSalle County, ILIL107,7738,248−8%

10Kankakee County, ILIL105,5256,755+5%

11DeKalb County, ILIL101,8356,721−8%

12St. Clair County, ILIL250,7086,515−3%

13Madison County, ILIL263,1106,367−24%

14Champaign County, ILIL209,9726,329−10%

15McLean County, ILIL171,4195,840−0%

16Grundy County, ILIL54,0525,002+10%

17Sangamon County, ILIL194,1703,856−11%

18Boone County, ILIL53,5683,523+31%

19Peoria County, ILIL178,5533,464−14%

20Rock Island County, ILIL141,8692,791−14%

21Tazewell County, ILIL130,0492,489−8%

22Ogle County, ILIL51,3991,992−2%

23Bureau County, ILIL32,5101,889−7%

24Macon County, ILIL99,3001,848−21%

25Williamson County, ILIL67,2251,575+14%

26Henry County, ILIL48,0951,573+20%

27Washington County, ILIL13,5641,550−25%

28Jackson County, ILIL52,5011,347+1%

29Whiteside County, ILIL54,1211,316−15%

30Franklin County, ILIL36,9161,274−1%

31Vermilion County, ILIL71,2591,264−34%

32Perry County, ILIL20,1601,234−12%

33Woodford County, ILIL38,1111,197+5%

34Monroe County, ILIL34,8401,142+9%

35Livingston County, ILIL35,0571,093−15%

36Stephenson County, ILIL43,2201,031+4%

37Jo Daviess County, ILIL21,594982+31%

38Marion County, ILIL36,382976−1%

39Jefferson County, ILIL36,147933−14%

40Lee County, ILIL32,914923−23%

41Macoupin County, ILIL43,748890−40%

42Clinton County, ILIL37,128842+14%

43Logan County, ILIL27,182807+70%

44McDonough County, ILIL25,916737−46%

45Knox County, ILIL47,767728+4%

46Coles County, ILIL46,607677−63%

47Iroquois County, ILIL26,150677−32%

48Fulton County, ILIL32,901608−20%

49Putnam County, ILIL5,619566−14%

50De Witt County, ILIL15,118526+162%

51Montgomery County, ILIL28,076466−3%

52Effingham County, ILIL34,519453+12%

53Adams County, ILIL64,267452−54%

54Marshall County, ILIL11,473439−43%

55Shelby County, ILIL20,576430+172%

56Randolph County, ILIL29,921417−40%

57Christian County, ILIL33,443406−47%

58Piatt County, ILIL16,791390+77%

59Carroll County, ILIL15,419384−18%

60Morgan County, ILIL32,515380−42%

61Saline County, ILIL22,772376−5%

62Douglas County, ILIL19,880327+137%

63Menard County, ILIL11,863310+61%

64Massac County, ILIL13,502294+177%

65Johnson County, ILIL13,363277−2%

66Union County, ILIL16,656276+58%

67White County, ILIL13,250276−15%

68Bond County, ILIL16,959266+6%

69Clay County, ILIL12,793260+271%

70Richland County, ILIL15,219240+10%

71Jersey County, ILIL21,160234−47%

72Crawford County, ILIL18,648204−48%

73Pike County, ILIL14,231202+36%

74Edgar County, ILIL16,323201+12%

75Ford County, ILIL13,216200−31%

76Warren County, ILIL16,222172−68%

77Mason County, ILIL12,411170−37%

78Moultrie County, ILIL14,371135−2%

79Cass County, ILIL12,463129−39%

80Clark County, ILIL15,114128−63%

81Fayette County, ILIL20,790127−40%

82Mercer County, ILIL15,229126−71%

83Cumberland County, ILIL10,208114+63%

84Lawrence County, ILIL13,790104−5%

85Jasper County, ILIL9,03299+9%

86Hamilton County, ILIL7,85997−18%

87Wabash County, ILIL10,90792−40%

88Wayne County, ILIL15,88290−40%

89Hancock County, ILIL16,80387−73%

90Gallatin County, ILIL4,61677−31%

91Edwards County, ILIL5,89866−48%

92Stark County, ILIL5,31962−39%

93Henderson County, ILIL5,98461−2%

94Greene County, ILIL11,31360−57%

95Hardin County, ILIL3,58860+200%

96Scott County, ILIL4,86651+19%

97Pope County, ILIL3,67231−30%

98Calhoun County, ILIL4,30030−41%

99Schuyler County, ILIL6,65728−44%

100Brown County, ILIL6,40121−32%

101Pulaski County, ILIL4,8208+33%

102Alexander County, ILIL4,5703−94%

SHOWING 1–102 OF 102

Download CSV (full list, 102 rows)

UPDATED 2026-08-08 · DATA: US CENSUS BUREAU DECENNIAL CENSUS