RANKING · 2010 CENSUS · 102 SHOWN OF 102

Highest Polish population share, Illinois counties · 2010

Illinois counties ranked by the share of all residents who are Polish ancestry (2010 American Community Survey). A concentration measure: Polish residents as a percentage of total population. This list covers the 102 counties in Illinois that qualify, ranked against each other statewide. The median across all 102 is 2.1%.

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 SHAREVS –

01McHenry County, ILIL317,75114.2%–

02Washington County, ILIL13,56414.0%–

03Will County, ILIL712,25313.3%–

04DuPage County, ILIL934,29812.2%–

05Putnam County, ILIL5,61910.9%–

06Kendall County, ILIL145,4709.5%–

07Cook County, ILIL5,194,6259.4%–

08Lake County, ILIL719,3399.4%–

09Grundy County, ILIL54,0529.4%–

10Kane County, ILIL525,7577.9%–

11LaSalle County, ILIL107,7737.8%–

12DeKalb County, ILIL101,8357.0%–

13Perry County, ILIL20,1606.3%–

14Marshall County, ILIL11,4736.1%–

15Bureau County, ILIL32,5105.8%–

16Kankakee County, ILIL105,5255.8%–

17Boone County, ILIL53,5685.0%–

18McDonough County, ILIL25,9164.2%–

19Ogle County, ILIL51,3993.8%–

20Winnebago County, ILIL283,6743.7%–

21Champaign County, ILIL209,9723.6%–

22McLean County, ILIL171,4193.5%–

23Coles County, ILIL46,6073.4%–

24Lee County, ILIL32,9143.3%–

25Livingston County, ILIL35,0573.3%–

26Iroquois County, ILIL26,1503.3%–

27Jo Daviess County, ILIL21,5943.3%–

28Franklin County, ILIL36,9163.3%–

29Monroe County, ILIL34,8403.2%–

30Madison County, ILIL263,1103.1%–

31Macoupin County, ILIL43,7483.1%–

32Warren County, ILIL16,2223.1%–

33Carroll County, ILIL15,4193.0%–

34Woodford County, ILIL38,1113.0%–

35Jefferson County, ILIL36,1472.8%–

36Whiteside County, ILIL54,1212.6%–

37Mercer County, ILIL15,2292.6%–

38Henry County, ILIL48,0952.6%–

39St. Clair County, ILIL250,7082.5%–

40Marion County, ILIL36,3822.5%–

41Vermilion County, ILIL71,2592.4%–

42Jackson County, ILIL52,5012.2%–

43Sangamon County, ILIL194,1702.2%–

44Johnson County, ILIL13,3632.2%–

45Christian County, ILIL33,4432.2%–

46Rock Island County, ILIL141,8692.2%–

47White County, ILIL13,2502.2%–

48Peoria County, ILIL178,5532.2%–

49Macon County, ILIL99,3002.1%–

50Williamson County, ILIL67,2252.1%–

51Clark County, ILIL15,1142.1%–

52Stephenson County, ILIL43,2202.1%–

53Randolph County, ILIL29,9212.1%–

54Ford County, ILIL13,2162.0%–

55Fulton County, ILIL32,9012.0%–

56Tazewell County, ILIL130,0492.0%–

57Crawford County, ILIL18,6482.0%–

58Clinton County, ILIL37,1282.0%–

59Jersey County, ILIL21,1601.9%–

60Gallatin County, ILIL4,6161.9%–

61Edwards County, ILIL5,8981.9%–

62Morgan County, ILIL32,5151.8%–

63Mason County, ILIL12,4111.8%–

64Stark County, ILIL5,3191.7%–

65Hancock County, ILIL16,8031.7%–

66Montgomery County, ILIL28,0761.6%–

67Saline County, ILIL22,7721.6%–

68Cass County, ILIL12,4631.6%–

69Logan County, ILIL27,1821.6%–

70Menard County, ILIL11,8631.5%–

71Adams County, ILIL64,2671.5%–

72Hamilton County, ILIL7,8591.4%–

73Bond County, ILIL16,9591.4%–

74Richland County, ILIL15,2191.3%–

75Knox County, ILIL47,7671.3%–

76Piatt County, ILIL16,7911.3%–

77Wabash County, ILIL10,9071.3%–

78De Witt County, ILIL15,1181.2%–

79Effingham County, ILIL34,5191.2%–

80Calhoun County, ILIL4,3001.0%–

81Pope County, ILIL3,6721.0%–

82Greene County, ILIL11,3131.0%–

83Union County, ILIL16,6561.0%–

84Fayette County, ILIL20,7901.0%–

85Edgar County, ILIL16,3231.0%–

86Moultrie County, ILIL14,3710.9%–

87Jasper County, ILIL9,0320.9%–

88Pike County, ILIL14,2310.9%–

89Wayne County, ILIL15,8820.9%–

90Henderson County, ILIL5,9840.8%–

91Scott County, ILIL4,8660.8%–

92Shelby County, ILIL20,5760.7%–

93Douglas County, ILIL19,8800.7%–

94Massac County, ILIL13,5020.7%–

95Schuyler County, ILIL6,6570.7%–

96Lawrence County, ILIL13,7900.7%–

97Cumberland County, ILIL10,2080.6%–

98Alexander County, ILIL4,5700.6%–

99Clay County, ILIL12,7930.5%–

100Hardin County, ILIL3,5880.5%–

101Brown County, ILIL6,4010.4%–

102Pulaski County, ILIL4,8200.1%–

SHOWING 1–102 OF 102

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