RANKING · 2020 CENSUS · 102 SHOWN OF 102

Largest Scotch-Irish population, Illinois counties · 2020

Illinois counties ranked by the number of residents who are Scotch-Irish ancestry, from the 2023 American Community Survey detailed-origin tables. Each list covers the full eligible universe; download the complete data as CSV. This list covers the 102 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 POPULATIONVS 2000

01Cook County, ILIL5,194,62515,225–

02DuPage County, ILIL934,2984,604–

03Lake County, ILIL719,3393,514–

04Will County, ILIL712,2533,205–

05Kane County, ILIL525,7572,660–

06McHenry County, ILIL317,7512,641–

07Madison County, ILIL263,1102,382–

08Sangamon County, ILIL194,1702,059–

09Champaign County, ILIL209,9721,806–

10Winnebago County, ILIL283,6741,652–

11St. Clair County, ILIL250,7081,586–

12Peoria County, ILIL178,5531,504–

13Tazewell County, ILIL130,0491,264–

14LaSalle County, ILIL107,7731,179–

15McLean County, ILIL171,4191,143–

16Macon County, ILIL99,3001,139–

17Rock Island County, ILIL141,8691,076–

18Williamson County, ILIL67,225832–

19Jackson County, ILIL52,501824–

20Kankakee County, ILIL105,525772–

21Adams County, ILIL64,267717–

22Kendall County, ILIL145,470690–

23Randolph County, ILIL29,921618–

24Knox County, ILIL47,767617–

25DeKalb County, ILIL101,835596–

26Henry County, ILIL48,095595–

27Grundy County, ILIL54,052530–

28Franklin County, ILIL36,916496–

29Coles County, ILIL46,607464–

30Whiteside County, ILIL54,121453–

31Marion County, ILIL36,382435–

32Vermilion County, ILIL71,259414–

33Montgomery County, ILIL28,076402–

34Ogle County, ILIL51,399371–

35Jefferson County, ILIL36,147360–

36Effingham County, ILIL34,519356–

37Livingston County, ILIL35,057354–

38Woodford County, ILIL38,111336–

39Macoupin County, ILIL43,748332–

40Mercer County, ILIL15,229329–

41Saline County, ILIL22,772325–

42Lee County, ILIL32,914314–

43Clinton County, ILIL37,128301–

44Morgan County, ILIL32,515301–

45Logan County, ILIL27,182288–

46Boone County, ILIL53,568275–

47Monroe County, ILIL34,840269–

48Iroquois County, ILIL26,150266–

49Wayne County, ILIL15,882257–

50Christian County, ILIL33,443253–

51Fulton County, ILIL32,901250–

52Stephenson County, ILIL43,220234–

53McDonough County, ILIL25,916232–

54De Witt County, ILIL15,118228–

55Bureau County, ILIL32,510227–

56Bond County, ILIL16,959219–

57Warren County, ILIL16,222206–

58Mason County, ILIL12,411204–

59Menard County, ILIL11,863197–

60Edgar County, ILIL16,323195–

61Piatt County, ILIL16,791189–

62Massac County, ILIL13,502185–

63Crawford County, ILIL18,648179–

64Fayette County, ILIL20,790170–

65Jersey County, ILIL21,160166–

66White County, ILIL13,250166–

67Shelby County, ILIL20,576165–

68Washington County, ILIL13,564164–

69Perry County, ILIL20,160158–

70Hancock County, ILIL16,803154–

71Jo Daviess County, ILIL21,594147–

72Schuyler County, ILIL6,657142–

73Pike County, ILIL14,231136–

74Moultrie County, ILIL14,371114–

75Douglas County, ILIL19,880113–

76Ford County, ILIL13,216112–

77Clay County, ILIL12,793109–

78Union County, ILIL16,656107–

79Greene County, ILIL11,31399–

80Cumberland County, ILIL10,20892–

81Clark County, ILIL15,11488–

82Lawrence County, ILIL13,79084–

83Alexander County, ILIL4,57084–

84Wabash County, ILIL10,90782–

85Hardin County, ILIL3,58881–

86Henderson County, ILIL5,98476–

87Stark County, ILIL5,31974–

88Brown County, ILIL6,40173–

89Marshall County, ILIL11,47366–

90Jasper County, ILIL9,03262–

91Edwards County, ILIL5,89857–

92Gallatin County, ILIL4,61648–

93Pope County, ILIL3,67244–

94Cass County, ILIL12,46343–

95Johnson County, ILIL13,36343–

96Richland County, ILIL15,21943–

97Scott County, ILIL4,86636–

98Hamilton County, ILIL7,85929–

99Pulaski County, ILIL4,82027–

100Carroll County, ILIL15,41926–

101Putnam County, ILIL5,61925–

102Calhoun County, ILIL4,30018–

SHOWING 1–102 OF 102

Download CSV (full list, 102 rows)

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