RANKING · 2024 ACS · 100 SHOWN OF 100

Highest Scotch-Irish population share, Illinois counties

Illinois counties ranked by the share of all residents who are Scotch-Irish ancestry (2023 American Community Survey). A concentration measure: Scotch-Irish residents as a percentage of total population. This list covers the 100 counties in Illinois that qualify, ranked against each other statewide.

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 2000

01Hardin County, ILIL3,5883.2%–

02Randolph County, ILIL29,9211.9%–

03Wayne County, ILIL15,8821.8%–

04Piatt County, ILIL16,7911.7%–

05Bond County, ILIL16,9591.7%–

06Scott County, ILIL4,8661.6%–

07Crawford County, ILIL18,6481.6%–

08Saline County, ILIL22,7721.5%–

09Stark County, ILIL5,3191.5%–

10Jefferson County, ILIL36,1471.5%–

11Johnson County, ILIL13,3631.4%–

12Mason County, ILIL12,4111.3%–

13Knox County, ILIL47,7671.3%–

14Clinton County, ILIL37,1281.3%–

15Jackson County, ILIL52,5011.2%–

16Washington County, ILIL13,5641.1%–

17Cumberland County, ILIL10,2081.1%–

18Mercer County, ILIL15,2291.1%–

19Warren County, ILIL16,2221.0%–

20Menard County, ILIL11,8631.0%–

21Edwards County, ILIL5,8981.0%–

22Effingham County, ILIL34,5191.0%–

23Christian County, ILIL33,4431.0%–

24Sangamon County, ILIL194,1700.9%–

25Williamson County, ILIL67,2250.9%–

26Madison County, ILIL263,1100.9%–

27Edgar County, ILIL16,3230.9%–

28Marshall County, ILIL11,4730.9%–

29Monroe County, ILIL34,8400.9%–

30Perry County, ILIL20,1600.9%–

31Tazewell County, ILIL130,0490.9%–

32Union County, ILIL16,6560.8%–

33Putnam County, ILIL5,6190.8%–

34Massac County, ILIL13,5020.8%–

35Franklin County, ILIL36,9160.8%–

36Coles County, ILIL46,6070.8%–

37De Witt County, ILIL15,1180.8%–

38Marion County, ILIL36,3820.8%–

39Gallatin County, ILIL4,6160.8%–

40Livingston County, ILIL35,0570.8%–

41Bureau County, ILIL32,5100.8%–

42Fulton County, ILIL32,9010.7%–

43Morgan County, ILIL32,5150.7%–

44Peoria County, ILIL178,5530.7%–

45Macon County, ILIL99,3000.7%–

46St. Clair County, ILIL250,7080.7%–

47McDonough County, ILIL25,9160.7%–

48Champaign County, ILIL209,9720.7%–

49Whiteside County, ILIL54,1210.7%–

50Woodford County, ILIL38,1110.7%–

51Grundy County, ILIL54,0520.6%–

52Hancock County, ILIL16,8030.6%–

53DeKalb County, ILIL101,8350.6%–

54Henry County, ILIL48,0950.6%–

55McHenry County, ILIL317,7510.6%–

56Jo Daviess County, ILIL21,5940.6%–

57Adams County, ILIL64,2670.6%–

58Ogle County, ILIL51,3990.6%–

59McLean County, ILIL171,4190.6%–

60Rock Island County, ILIL141,8690.6%–

61Macoupin County, ILIL43,7480.6%–

62Jersey County, ILIL21,1600.6%–

63LaSalle County, ILIL107,7730.6%–

64Shelby County, ILIL20,5760.6%–

65Henderson County, ILIL5,9840.6%–

66Alexander County, ILIL4,5700.6%–

67Clay County, ILIL12,7930.6%–

68Fayette County, ILIL20,7900.5%–

69Winnebago County, ILIL283,6740.5%–

70Logan County, ILIL27,1820.5%–

71Jasper County, ILIL9,0320.5%–

72White County, ILIL13,2500.5%–

73Stephenson County, ILIL43,2200.5%–

74Calhoun County, ILIL4,3000.5%–

75Kane County, ILIL525,7570.5%–

76DuPage County, ILIL934,2980.5%–

77Clark County, ILIL15,1140.5%–

78Vermilion County, ILIL71,2590.5%–

79Montgomery County, ILIL28,0760.5%–

80Wabash County, ILIL10,9070.4%–

81Greene County, ILIL11,3130.4%–

82Iroquois County, ILIL26,1500.4%–

83Pulaski County, ILIL4,8200.4%–

84Lee County, ILIL32,9140.4%–

85Lawrence County, ILIL13,7900.4%–

86Kendall County, ILIL145,4700.4%–

87Ford County, ILIL13,2160.4%–

88Kankakee County, ILIL105,5250.4%–

89Lake County, ILIL719,3390.4%–

90Douglas County, ILIL19,8800.4%–

91Moultrie County, ILIL14,3710.4%–

92Will County, ILIL712,2530.4%–

93Pope County, ILIL3,6720.3%–

94Boone County, ILIL53,5680.3%–

95Cook County, ILIL5,194,6250.3%–

96Hamilton County, ILIL7,8590.3%–

97Pike County, ILIL14,2310.2%–

98Carroll County, ILIL15,4190.2%–

99Cass County, ILIL12,4630.2%–

100Richland County, ILIL15,2190.1%–

SHOWING 1–100 OF 100

Download CSV (full list, 100 rows)

UPDATED 2026-06-06 · DATA: US CENSUS BUREAU ACS 5-YEAR ESTIMATES