RANKING · 2024 ACS · 102 SHOWN OF 102

Highest Irish population share, Illinois counties

Illinois counties ranked by the share of all residents who are Irish ancestry (2024 American Community Survey). A concentration measure: Irish residents as a percentage of total population. This list covers the 102 counties in Illinois that qualify, ranked against each other statewide.

Irish Americans: full group profile →

IllinoisAll states All rankings

SAME RANKING BYCities States Metros

YEAR2010 2020 2024

RANKPLACESTATEPOPIRISH SHAREVS 2010

01Jo Daviess County, ILIL21,59418.8%−0.9 pts

02Gallatin County, ILIL4,61618.4%−4.5 pts

03Saline County, ILIL22,77217.2%−0.6 pts

04LaSalle County, ILIL107,77316.1%−2.9 pts

05McHenry County, ILIL317,75115.8%−2.9 pts

06Marshall County, ILIL11,47315.4%−1.3 pts

07Lee County, ILIL32,91415.3%−3.4 pts

08DeKalb County, ILIL101,83515.2%−2.3 pts

09Pope County, ILIL3,67214.7%−4.5 pts

10McLean County, ILIL171,41914.4%−1.0 pts

11Grundy County, ILIL54,05214.4%−8.6 pts

12Livingston County, ILIL35,05714.2%−3.0 pts

13Scott County, ILIL4,86614.2%−2.0 pts

14Coles County, ILIL46,60714.2%−2.2 pts

15Piatt County, ILIL16,79113.8%+0.4 pts

16Henderson County, ILIL5,98413.8%−0.7 pts

17Schuyler County, ILIL6,65713.8%+1.8 pts

18Knox County, ILIL47,76713.7%−1.1 pts

19Whiteside County, ILIL54,12113.7%−1.8 pts

20White County, ILIL13,25013.7%−2.1 pts

21Ogle County, ILIL51,39913.7%−1.6 pts

22Hamilton County, ILIL7,85913.6%−7.0 pts

23Edgar County, ILIL16,32313.6%−1.6 pts

24Williamson County, ILIL67,22513.6%−3.7 pts

25Bureau County, ILIL32,51013.6%−0.2 pts

26Macoupin County, ILIL43,74813.5%−2.7 pts

27Madison County, ILIL263,11013.3%−1.5 pts

28Iroquois County, ILIL26,15013.3%−0.8 pts

29Jersey County, ILIL21,16013.2%−1.4 pts

30Monroe County, ILIL34,84013.2%−3.3 pts

31Clark County, ILIL15,11413.2%−1.1 pts

32Logan County, ILIL27,18213.0%−0.1 pts

33DuPage County, ILIL934,29813.0%−3.5 pts

34Clay County, ILIL12,79313.0%+0.5 pts

35Tazewell County, ILIL130,04913.0%−1.3 pts

36Washington County, ILIL13,56413.0%−0.1 pts

37Stephenson County, ILIL43,22013.0%+0.5 pts

38Bond County, ILIL16,95912.9%+2.8 pts

39Massac County, ILIL13,50212.9%−3.2 pts

40Will County, ILIL712,25312.9%−5.7 pts

41Montgomery County, ILIL28,07612.9%+1.7 pts

42Warren County, ILIL16,22212.9%−1.8 pts

43Carroll County, ILIL15,41912.9%−1.1 pts

44Putnam County, ILIL5,61912.8%−3.9 pts

45Morgan County, ILIL32,51512.8%−2.6 pts

46Boone County, ILIL53,56812.6%−1.1 pts

47Stark County, ILIL5,31912.6%−2.9 pts

48Hancock County, ILIL16,80312.6%+0.5 pts

49Hardin County, ILIL3,58812.5%−14.0 pts

50Sangamon County, ILIL194,17012.4%−2.4 pts

51Marion County, ILIL36,38212.3%−3.5 pts

52Greene County, ILIL11,31312.3%−2.5 pts

53Mason County, ILIL12,41112.2%+1.9 pts

54Henry County, ILIL48,09512.2%−2.4 pts

55Mercer County, ILIL15,22912.2%−6.0 pts

56McDonough County, ILIL25,91612.2%−1.5 pts

57Peoria County, ILIL178,55312.1%−2.7 pts

58Kendall County, ILIL145,47011.9%−4.1 pts

59Winnebago County, ILIL283,67411.8%−1.7 pts

60Franklin County, ILIL36,91611.8%−6.9 pts

61Ford County, ILIL13,21611.8%−3.7 pts

62Woodford County, ILIL38,11111.6%−2.6 pts

63Wabash County, ILIL10,90711.5%+3.2 pts

64Randolph County, ILIL29,92111.3%−0.0 pts

65De Witt County, ILIL15,11811.3%−1.1 pts

66Kankakee County, ILIL105,52511.3%−3.0 pts

67Jasper County, ILIL9,03211.1%+0.1 pts

68Cumberland County, ILIL10,20811.0%−0.7 pts

69Menard County, ILIL11,86311.0%−4.6 pts

70Richland County, ILIL15,21910.8%+1.6 pts

71Moultrie County, ILIL14,37110.8%−1.2 pts

72Kane County, ILIL525,75710.7%−2.4 pts

73Christian County, ILIL33,44310.7%−2.1 pts

74Rock Island County, ILIL141,86910.6%−3.6 pts

75Jefferson County, ILIL36,14710.6%−5.2 pts

76Fulton County, ILIL32,90110.6%−2.6 pts

77Johnson County, ILIL13,36310.4%−1.1 pts

78Macon County, ILIL99,30010.4%−2.5 pts

79Jackson County, ILIL52,50110.3%−4.2 pts

80Pike County, ILIL14,23110.2%−3.2 pts

81Perry County, ILIL20,16010.2%−4.2 pts

82Lake County, ILIL719,33910.0%−2.9 pts

83Adams County, ILIL64,26710.0%−3.1 pts

84Fayette County, ILIL20,7909.9%+0.6 pts

85St. Clair County, ILIL250,7089.7%−1.4 pts

86Crawford County, ILIL18,6489.5%−2.8 pts

87Wayne County, ILIL15,8829.4%−0.5 pts

88Pulaski County, ILIL4,8209.2%+2.4 pts

89Lawrence County, ILIL13,7909.1%−0.4 pts

90Shelby County, ILIL20,5769.0%+0.2 pts

91Champaign County, ILIL209,9729.0%−3.2 pts

92Brown County, ILIL6,4018.8%−3.9 pts

93Union County, ILIL16,6568.7%−3.8 pts

94Calhoun County, ILIL4,3008.7%−3.8 pts

95Effingham County, ILIL34,5198.5%−1.4 pts

96Cass County, ILIL12,4638.5%−2.1 pts

97Cook County, ILIL5,194,6258.4%−1.8 pts

98Edwards County, ILIL5,8988.2%−0.3 pts

99Vermilion County, ILIL71,2598.0%−2.1 pts

100Douglas County, ILIL19,8807.4%−3.2 pts

101Alexander County, ILIL4,5707.0%+0.1 pts

102Clinton County, ILIL37,1286.5%−3.2 pts

SHOWING 1–102 OF 102

Download CSV (full list, 102 rows)

UPDATED 2026-08-08 · DATA: US CENSUS BUREAU ACS 5-YEAR ESTIMATES