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 (2020 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 2.0%.

Polish Americans: full group profile →

IllinoisAll states All rankings

SAME RANKING BYCities States Metros

YEAR2010 2020 2024

RANKPLACESTATEPOPPOLISH SHAREVS 2010

01McHenry County, ILIL317,75112.5%−1.7 pts

02Will County, ILIL712,25311.7%−1.6 pts

03Washington County, ILIL13,56411.1%−2.9 pts

04DuPage County, ILIL934,29810.3%−1.8 pts

05Putnam County, ILIL5,6199.9%−1.1 pts

06Grundy County, ILIL54,0529.8%+0.5 pts

07Lake County, ILIL719,3398.4%−1.0 pts

08Kendall County, ILIL145,4708.2%−1.3 pts

09Cook County, ILIL5,194,6257.7%−1.7 pts

10LaSalle County, ILIL107,7737.6%−0.3 pts

11Kane County, ILIL525,7576.9%−1.0 pts

12Boone County, ILIL53,5686.6%+1.6 pts

13DeKalb County, ILIL101,8356.4%−0.6 pts

14Kankakee County, ILIL105,5256.1%+0.4 pts

15Perry County, ILIL20,1605.9%−0.4 pts

16Bureau County, ILIL32,5105.7%0.0 pts

17Jo Daviess County, ILIL21,5944.6%+1.3 pts

18Ogle County, ILIL51,3993.9%+0.1 pts

19Marshall County, ILIL11,4733.8%−2.3 pts

20Winnebago County, ILIL283,6743.4%−0.3 pts

21McLean County, ILIL171,4193.4%−0.1 pts

22De Witt County, ILIL15,1183.3%+2.1 pts

23Monroe County, ILIL34,8403.3%+0.1 pts

24Franklin County, ILIL36,9163.3%0.0 pts

25Henry County, ILIL48,0953.2%+0.6 pts

26Woodford County, ILIL38,1113.1%+0.1 pts

27Livingston County, ILIL35,0573.1%−0.3 pts

28Champaign County, ILIL209,9723.0%−0.5 pts

29Logan County, ILIL27,1822.8%+1.2 pts

30Lee County, ILIL32,9142.7%−0.6 pts

31Carroll County, ILIL15,4192.7%−0.3 pts

32Marion County, ILIL36,3822.6%+0.1 pts

33Menard County, ILIL11,8632.5%+1.0 pts

34St. Clair County, ILIL250,7082.5%0.0 pts

35Jefferson County, ILIL36,1472.5%−0.3 pts

36Iroquois County, ILIL26,1502.5%−0.8 pts

37McDonough County, ILIL25,9162.4%−1.7 pts

38Madison County, ILIL263,1102.4%−0.7 pts

39Piatt County, ILIL16,7912.4%+1.1 pts

40Whiteside County, ILIL54,1212.4%−0.3 pts

41Williamson County, ILIL67,2252.4%+0.2 pts

42Jackson County, ILIL52,5012.3%+0.1 pts

43Stephenson County, ILIL43,2202.3%+0.2 pts

44Clinton County, ILIL37,1282.2%+0.3 pts

45Johnson County, ILIL13,3632.2%0.0 pts

46Massac County, ILIL13,5022.1%+1.4 pts

47White County, ILIL13,2502.0%−0.2 pts

48Shelby County, ILIL20,5762.0%+1.3 pts

49Sangamon County, ILIL194,1702.0%−0.3 pts

50Clay County, ILIL12,7932.0%+1.5 pts

51Macoupin County, ILIL43,7482.0%−1.1 pts

52Rock Island County, ILIL141,8692.0%−0.2 pts

53Peoria County, ILIL178,5531.9%−0.3 pts

54Tazewell County, ILIL130,0491.9%−0.1 pts

55Macon County, ILIL99,3001.8%−0.4 pts

56Fulton County, ILIL32,9011.8%−0.3 pts

57Douglas County, ILIL19,8801.7%+1.0 pts

58Vermilion County, ILIL71,2591.6%−0.7 pts

59Union County, ILIL16,6561.6%+0.7 pts

60Montgomery County, ILIL28,0761.6%0.0 pts

61Bond County, ILIL16,9591.6%+0.2 pts

62Saline County, ILIL22,7721.6%0.0 pts

63Gallatin County, ILIL4,6161.5%−0.4 pts

64Hardin County, ILIL3,5881.5%+1.1 pts

65Richland County, ILIL15,2191.5%+0.2 pts

66Ford County, ILIL13,2161.5%−0.5 pts

67Knox County, ILIL47,7671.5%+0.1 pts

68Effingham County, ILIL34,5191.3%+0.1 pts

69Coles County, ILIL46,6071.3%−2.1 pts

70Randolph County, ILIL29,9211.3%−0.8 pts

71Pike County, ILIL14,2311.3%+0.4 pts

72Mason County, ILIL12,4111.3%−0.6 pts

73Christian County, ILIL33,4431.2%−1.0 pts

74Hamilton County, ILIL7,8591.2%−0.2 pts

75Edgar County, ILIL16,3231.2%+0.2 pts

76Stark County, ILIL5,3191.1%−0.5 pts

77Morgan County, ILIL32,5151.1%−0.7 pts

78Crawford County, ILIL18,6481.1%−0.9 pts

79Jersey County, ILIL21,1601.1%−0.8 pts

80Cumberland County, ILIL10,2081.1%+0.4 pts

81Cass County, ILIL12,4631.0%−0.5 pts

82Jasper County, ILIL9,0321.0%+0.1 pts

83Edwards County, ILIL5,8981.0%−0.9 pts

84Scott County, ILIL4,8661.0%+0.2 pts

85Warren County, ILIL16,2221.0%−2.1 pts

86Moultrie County, ILIL14,3710.9%0.0 pts

87Henderson County, ILIL5,9840.9%+0.1 pts

88Clark County, ILIL15,1140.8%−1.3 pts

89Mercer County, ILIL15,2290.8%−1.8 pts

90Wabash County, ILIL10,9070.8%−0.5 pts

91Pope County, ILIL3,6720.7%−0.3 pts

92Adams County, ILIL64,2670.7%−0.8 pts

93Lawrence County, ILIL13,7900.7%0.0 pts

94Calhoun County, ILIL4,3000.6%−0.4 pts

95Fayette County, ILIL20,7900.6%−0.4 pts

96Wayne County, ILIL15,8820.6%−0.3 pts

97Hancock County, ILIL16,8030.5%−1.2 pts

98Greene County, ILIL11,3130.5%−0.5 pts

99Schuyler County, ILIL6,6570.4%−0.3 pts

100Brown County, ILIL6,4010.3%−0.1 pts

101Pulaski County, ILIL4,8200.1%+0.1 pts

102Alexander County, ILIL4,5700.0%−0.5 pts

SHOWING 1–102 OF 102

Download CSV (full list, 102 rows)

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