RANKING · 2010 CENSUS · 102 SHOWN OF 102

Highest Scotch-Irish population share, Illinois counties · 2010

Illinois counties ranked by the share of all residents who are Scotch-Irish ancestry (2010 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. The median across all 102 is 1.6%.

Scotch-Irish 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

RANKPLACESTATEPOPSCOTCH-IRISH SHAREVS –

01Piatt County, ILIL16,7913.7%–

02Pope County, ILIL3,6723.5%–

03Henderson County, ILIL5,9842.8%–

04Franklin County, ILIL36,9162.8%–

05Johnson County, ILIL13,3632.8%–

06Saline County, ILIL22,7722.5%–

07Edwards County, ILIL5,8982.4%–

08Clay County, ILIL12,7932.4%–

09McDonough County, ILIL25,9162.4%–

10Scott County, ILIL4,8662.4%–

11Grundy County, ILIL54,0522.3%–

12Brown County, ILIL6,4012.3%–

13Warren County, ILIL16,2222.3%–

14Randolph County, ILIL29,9212.3%–

15Edgar County, ILIL16,3232.1%–

16Hardin County, ILIL3,5882.1%–

17Clark County, ILIL15,1142.1%–

18Macoupin County, ILIL43,7482.1%–

19Menard County, ILIL11,8632.1%–

20Sangamon County, ILIL194,1702.1%–

21Christian County, ILIL33,4432.1%–

22Stark County, ILIL5,3192.0%–

23Greene County, ILIL11,3132.0%–

24Pulaski County, ILIL4,8202.0%–

25Adams County, ILIL64,2672.0%–

26Douglas County, ILIL19,8802.0%–

27De Witt County, ILIL15,1182.0%–

28Mason County, ILIL12,4112.0%–

29Knox County, ILIL47,7672.0%–

30Jackson County, ILIL52,5011.9%–

31Woodford County, ILIL38,1111.9%–

32Jasper County, ILIL9,0321.9%–

33Wabash County, ILIL10,9071.9%–

34McLean County, ILIL171,4191.9%–

35Tazewell County, ILIL130,0491.9%–

36Coles County, ILIL46,6071.9%–

37Effingham County, ILIL34,5191.9%–

38Bond County, ILIL16,9591.8%–

39Perry County, ILIL20,1601.8%–

40Marion County, ILIL36,3821.8%–

41Schuyler County, ILIL6,6571.8%–

42Morgan County, ILIL32,5151.8%–

43Williamson County, ILIL67,2251.8%–

44Rock Island County, ILIL141,8691.7%–

45White County, ILIL13,2501.7%–

46Montgomery County, ILIL28,0761.7%–

47Madison County, ILIL263,1101.7%–

48Macon County, ILIL99,3001.6%–

49Vermilion County, ILIL71,2591.6%–

50LaSalle County, ILIL107,7731.6%–

51Bureau County, ILIL32,5101.6%–

52Cumberland County, ILIL10,2081.6%–

53Peoria County, ILIL178,5531.6%–

54Hancock County, ILIL16,8031.6%–

55Jefferson County, ILIL36,1471.6%–

56Moultrie County, ILIL14,3711.5%–

57Crawford County, ILIL18,6481.5%–

58Richland County, ILIL15,2191.5%–

59Putnam County, ILIL5,6191.5%–

60Champaign County, ILIL209,9721.5%–

61DeKalb County, ILIL101,8351.5%–

62Livingston County, ILIL35,0571.5%–

63Henry County, ILIL48,0951.5%–

64Monroe County, ILIL34,8401.5%–

65Alexander County, ILIL4,5701.4%–

66Cass County, ILIL12,4631.4%–

67Wayne County, ILIL15,8821.4%–

68Ogle County, ILIL51,3991.4%–

69Shelby County, ILIL20,5761.4%–

70Iroquois County, ILIL26,1501.4%–

71Gallatin County, ILIL4,6161.4%–

72Massac County, ILIL13,5021.4%–

73Ford County, ILIL13,2161.3%–

74McHenry County, ILIL317,7511.3%–

75Fulton County, ILIL32,9011.3%–

76Logan County, ILIL27,1821.3%–

77Lee County, ILIL32,9141.3%–

78Carroll County, ILIL15,4191.3%–

79Kendall County, ILIL145,4701.3%–

80Mercer County, ILIL15,2291.3%–

81Calhoun County, ILIL4,3001.3%–

82DuPage County, ILIL934,2981.2%–

83Marshall County, ILIL11,4731.2%–

84Union County, ILIL16,6561.2%–

85Kane County, ILIL525,7571.2%–

86Will County, ILIL712,2531.2%–

87Kankakee County, ILIL105,5251.2%–

88Whiteside County, ILIL54,1211.2%–

89St. Clair County, ILIL250,7081.2%–

90Lake County, ILIL719,3391.1%–

91Pike County, ILIL14,2311.1%–

92Stephenson County, ILIL43,2201.1%–

93Winnebago County, ILIL283,6741.1%–

94Fayette County, ILIL20,7901.0%–

95Lawrence County, ILIL13,7901.0%–

96Boone County, ILIL53,5681.0%–

97Washington County, ILIL13,5640.9%–

98Clinton County, ILIL37,1280.9%–

99Jo Daviess County, ILIL21,5940.9%–

100Hamilton County, ILIL7,8590.7%–

101Cook County, ILIL5,194,6250.6%–

102Jersey County, ILIL21,1600.5%–

SHOWING 1–102 OF 102

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