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.

Scotch-Irish Americans: full group profile →

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

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

Download CSV (full list, 102 rows)

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