RANKING · 2020 CENSUS · 102 SHOWN OF 102

Highest Scotch-Irish population share, Illinois counties · 2020

Illinois counties ranked by the share of all residents who are Scotch-Irish ancestry (2020 American Community Survey). A concentration measure: Scotch-Irish residents as a percentage of total population. This list covers the 102 counties in Illinois that qualify, ranked against each other statewide.

Scotch-Irish Americans: full group profile →

IllinoisAll states All rankings

SAME RANKING BYCities States Metros

YEAR2010 2020 2024

RANKPLACESTATEPOPSCOTCH-IRISH SHAREVS 2010

01Mercer County, ILIL15,2292.1%+0.8 pts

02Hardin County, ILIL3,5882.1%−0.1 pts

03Schuyler County, ILIL6,6572.1%+0.3 pts

04Randolph County, ILIL29,9211.9%−0.3 pts

05Menard County, ILIL11,8631.6%−0.5 pts

06Wayne County, ILIL15,8821.6%+0.2 pts

07Mason County, ILIL12,4111.5%−0.5 pts

08De Witt County, ILIL15,1181.4%−0.5 pts

09Jackson County, ILIL52,5011.4%−0.5 pts

10Montgomery County, ILIL28,0761.4%−0.3 pts

11Alexander County, ILIL4,5701.4%−0.0 pts

12Stark County, ILIL5,3191.4%−0.7 pts

13Saline County, ILIL22,7721.4%−1.1 pts

14Bond County, ILIL16,9591.3%−0.5 pts

15Massac County, ILIL13,5021.3%−0.1 pts

16Franklin County, ILIL36,9161.3%−1.5 pts

17Williamson County, ILIL67,2251.2%−0.5 pts

18Knox County, ILIL47,7671.2%−0.7 pts

19Henry County, ILIL48,0951.2%−0.3 pts

20Warren County, ILIL16,2221.2%−1.1 pts

21White County, ILIL13,2501.2%−0.5 pts

22Washington County, ILIL13,5641.2%+0.3 pts

23Marion County, ILIL36,3821.2%−0.7 pts

24Piatt County, ILIL16,7911.2%−2.5 pts

25Edgar County, ILIL16,3231.1%−1.0 pts

26Henderson County, ILIL5,9841.1%−1.7 pts

27Brown County, ILIL6,4011.1%−1.2 pts

28Adams County, ILIL64,2671.1%−0.9 pts

29Macon County, ILIL99,3001.1%−0.5 pts

30LaSalle County, ILIL107,7731.1%−0.5 pts

31Pope County, ILIL3,6721.1%−2.5 pts

32Sangamon County, ILIL194,1701.1%−1.1 pts

33Grundy County, ILIL54,0521.0%−1.3 pts

34Effingham County, ILIL34,5191.0%−0.8 pts

35Logan County, ILIL27,1821.0%−0.3 pts

36Livingston County, ILIL35,0571.0%−0.5 pts

37Iroquois County, ILIL26,1501.0%−0.4 pts

38Gallatin County, ILIL4,6161.0%−0.4 pts

39Tazewell County, ILIL130,0491.0%−0.9 pts

40Jefferson County, ILIL36,1471.0%−0.6 pts

41Crawford County, ILIL18,6481.0%−0.6 pts

42Lee County, ILIL32,9140.9%−0.4 pts

43Coles County, ILIL46,6070.9%−1.0 pts

44Madison County, ILIL263,1100.9%−0.8 pts

45Edwards County, ILIL5,8980.9%−1.5 pts

46Morgan County, ILIL32,5150.9%−0.9 pts

47Pike County, ILIL14,2310.9%−0.3 pts

48Woodford County, ILIL38,1110.9%−1.1 pts

49Hancock County, ILIL16,8030.9%−0.7 pts

50Champaign County, ILIL209,9720.9%−0.6 pts

51McHenry County, ILIL317,7510.9%−0.5 pts

52Cumberland County, ILIL10,2080.9%−0.7 pts

53Ford County, ILIL13,2160.9%−0.5 pts

54Peoria County, ILIL178,5530.8%−0.7 pts

55Clay County, ILIL12,7930.8%−1.6 pts

56Whiteside County, ILIL54,1210.8%−0.3 pts

57Clinton County, ILIL37,1280.8%−0.1 pts

58Fayette County, ILIL20,7900.8%−0.2 pts

59Moultrie County, ILIL14,3710.8%−0.8 pts

60Monroe County, ILIL34,8400.8%−0.7 pts

61Christian County, ILIL33,4430.8%−1.3 pts

62McDonough County, ILIL25,9160.8%−1.6 pts

63Shelby County, ILIL20,5760.8%−0.6 pts

64Jersey County, ILIL21,1600.8%+0.2 pts

65Greene County, ILIL11,3130.8%−1.2 pts

66Rock Island County, ILIL141,8690.8%−1.0 pts

67Perry County, ILIL20,1600.7%−1.1 pts

68Macoupin County, ILIL43,7480.7%−1.4 pts

69Ogle County, ILIL51,3990.7%−0.7 pts

70Scott County, ILIL4,8660.7%−1.6 pts

71Fulton County, ILIL32,9010.7%−0.6 pts

72Wabash County, ILIL10,9070.7%−1.2 pts

73Kankakee County, ILIL105,5250.7%−0.5 pts

74Bureau County, ILIL32,5100.7%−0.9 pts

75Jo Daviess County, ILIL21,5940.7%−0.2 pts

76McLean County, ILIL171,4190.7%−1.2 pts

77Jasper County, ILIL9,0320.6%−1.3 pts

78Union County, ILIL16,6560.6%−0.6 pts

79St. Clair County, ILIL250,7080.6%−0.5 pts

80Winnebago County, ILIL283,6740.6%−0.5 pts

81Douglas County, ILIL19,8800.6%−1.4 pts

82Marshall County, ILIL11,4730.6%−0.7 pts

83DeKalb County, ILIL101,8350.6%−0.9 pts

84Clark County, ILIL15,1140.6%−1.6 pts

85Kendall County, ILIL145,4700.5%−0.8 pts

86Vermilion County, ILIL71,2590.5%−1.1 pts

87Lawrence County, ILIL13,7900.5%−0.5 pts

88Stephenson County, ILIL43,2200.5%−0.6 pts

89Boone County, ILIL53,5680.5%−0.5 pts

90Lake County, ILIL719,3390.5%−0.6 pts

91Kane County, ILIL525,7570.5%−0.7 pts

92Pulaski County, ILIL4,8200.5%−1.5 pts

93DuPage County, ILIL934,2980.5%−0.7 pts

94Will County, ILIL712,2530.5%−0.7 pts

95Putnam County, ILIL5,6190.4%−1.1 pts

96Calhoun County, ILIL4,3000.4%−0.9 pts

97Hamilton County, ILIL7,8590.4%−0.3 pts

98Cass County, ILIL12,4630.3%−1.1 pts

99Johnson County, ILIL13,3630.3%−2.4 pts

100Cook County, ILIL5,194,6250.3%−0.3 pts

101Richland County, ILIL15,2190.3%−1.3 pts

102Carroll County, ILIL15,4190.2%−1.1 pts

SHOWING 1–102 OF 102

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