RANKING · 2020 CENSUS · 102 SHOWN OF 102

Highest Polish population share, Illinois counties · 2020

Illinois counties ranked by the share of all residents who are Polish ancestry (2023 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.

IllinoisAll states All rankings

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 2000

01McHenry County, ILIL317,75112.5%–

02Will County, ILIL712,25311.7%–

03Washington County, ILIL13,56411.1%–

04DuPage County, ILIL934,29810.3%–

05Putnam County, ILIL5,6199.9%–

06Grundy County, ILIL54,0529.8%–

07Lake County, ILIL719,3398.4%–

08Kendall County, ILIL145,4708.2%–

09Cook County, ILIL5,194,6257.7%–

10LaSalle County, ILIL107,7737.6%–

11Kane County, ILIL525,7576.9%–

12Boone County, ILIL53,5686.6%–

13DeKalb County, ILIL101,8356.4%–

14Kankakee County, ILIL105,5256.1%–

15Perry County, ILIL20,1605.9%–

16Bureau County, ILIL32,5105.7%–

17Jo Daviess County, ILIL21,5944.6%–

18Ogle County, ILIL51,3993.9%–

19Marshall County, ILIL11,4733.8%–

20Winnebago County, ILIL283,6743.4%–

21McLean County, ILIL171,4193.4%–

22De Witt County, ILIL15,1183.3%–

23Monroe County, ILIL34,8403.3%–

24Franklin County, ILIL36,9163.3%–

25Henry County, ILIL48,0953.2%–

26Woodford County, ILIL38,1113.1%–

27Livingston County, ILIL35,0573.1%–

28Champaign County, ILIL209,9723.0%–

29Logan County, ILIL27,1822.8%–

30Lee County, ILIL32,9142.7%–

31Carroll County, ILIL15,4192.7%–

32Marion County, ILIL36,3822.6%–

33Menard County, ILIL11,8632.5%–

34St. Clair County, ILIL250,7082.5%–

35Jefferson County, ILIL36,1472.5%–

36Iroquois County, ILIL26,1502.5%–

37McDonough County, ILIL25,9162.4%–

38Madison County, ILIL263,1102.4%–

39Piatt County, ILIL16,7912.4%–

40Whiteside County, ILIL54,1212.4%–

41Williamson County, ILIL67,2252.4%–

42Jackson County, ILIL52,5012.3%–

43Stephenson County, ILIL43,2202.3%–

44Clinton County, ILIL37,1282.2%–

45Johnson County, ILIL13,3632.2%–

46Massac County, ILIL13,5022.1%–

47White County, ILIL13,2502.0%–

48Shelby County, ILIL20,5762.0%–

49Sangamon County, ILIL194,1702.0%–

50Clay County, ILIL12,7932.0%–

51Macoupin County, ILIL43,7482.0%–

52Rock Island County, ILIL141,8692.0%–

53Peoria County, ILIL178,5531.9%–

54Tazewell County, ILIL130,0491.9%–

55Macon County, ILIL99,3001.8%–

56Fulton County, ILIL32,9011.8%–

57Douglas County, ILIL19,8801.7%–

58Vermilion County, ILIL71,2591.6%–

59Union County, ILIL16,6561.6%–

60Montgomery County, ILIL28,0761.6%–

61Bond County, ILIL16,9591.6%–

62Saline County, ILIL22,7721.6%–

63Gallatin County, ILIL4,6161.5%–

64Hardin County, ILIL3,5881.5%–

65Richland County, ILIL15,2191.5%–

66Ford County, ILIL13,2161.5%–

67Knox County, ILIL47,7671.5%–

68Effingham County, ILIL34,5191.3%–

69Coles County, ILIL46,6071.3%–

70Randolph County, ILIL29,9211.3%–

71Pike County, ILIL14,2311.3%–

72Mason County, ILIL12,4111.3%–

73Christian County, ILIL33,4431.2%–

74Hamilton County, ILIL7,8591.2%–

75Edgar County, ILIL16,3231.2%–

76Stark County, ILIL5,3191.1%–

77Morgan County, ILIL32,5151.1%–

78Crawford County, ILIL18,6481.1%–

79Jersey County, ILIL21,1601.1%–

80Cumberland County, ILIL10,2081.1%–

81Cass County, ILIL12,4631.0%–

82Jasper County, ILIL9,0321.0%–

83Edwards County, ILIL5,8981.0%–

84Scott County, ILIL4,8661.0%–

85Warren County, ILIL16,2221.0%–

86Moultrie County, ILIL14,3710.9%–

87Henderson County, ILIL5,9840.9%–

88Clark County, ILIL15,1140.8%–

89Mercer County, ILIL15,2290.8%–

90Wabash County, ILIL10,9070.8%–

91Pope County, ILIL3,6720.7%–

92Adams County, ILIL64,2670.7%–

93Lawrence County, ILIL13,7900.7%–

94Calhoun County, ILIL4,3000.6%–

95Fayette County, ILIL20,7900.6%–

96Wayne County, ILIL15,8820.6%–

97Hancock County, ILIL16,8030.5%–

98Greene County, ILIL11,3130.5%–

99Schuyler County, ILIL6,6570.4%–

100Brown County, ILIL6,4010.3%–

101Pulaski County, ILIL4,8200.1%–

102Alexander County, ILIL4,5700.0%–

SHOWING 1–102 OF 102

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UPDATED 2026-06-06 · DATA: US CENSUS BUREAU ACS 5-YEAR ESTIMATES