RANKING · 2020 CENSUS · 99 SHOWN OF 99

Largest Swiss population, Illinois counties · 2020

Illinois counties ranked by the number of residents who are Swiss ancestry, from the 2020 American Community Survey detailed-origin tables. Each list covers the full eligible universe; download the complete data as CSV. This list covers the 99 counties in Illinois that qualify, ranked against each other statewide.

Swiss 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

RANKPLACESTATEPOPSWISS POPULATIONVS 2010

01Cook County, ILIL5,194,6257,963−6%

02DuPage County, ILIL934,2982,517−23%

03Lake County, ILIL719,3391,698−27%

04Madison County, ILIL263,1101,454−17%

05Kane County, ILIL525,7571,436−25%

06Winnebago County, ILIL283,6741,386−24%

07Peoria County, ILIL178,5531,351−15%

08Tazewell County, ILIL130,0491,191−11%

09McHenry County, ILIL317,7511,165+27%

10Stephenson County, ILIL43,2201,004−28%

11Woodford County, ILIL38,111970−21%

12Will County, ILIL712,253872−41%

13McLean County, ILIL171,419836−30%

14Sangamon County, ILIL194,170646+10%

15Champaign County, ILIL209,972597−37%

16DeKalb County, ILIL101,835517+36%

17St. Clair County, ILIL250,708499−42%

18Livingston County, ILIL35,057486−32%

19Moultrie County, ILIL14,371433+294%

20Rock Island County, ILIL141,869340−34%

21Kankakee County, ILIL105,525310+88%

22Ogle County, ILIL51,399272−8%

23Kendall County, ILIL145,470231−49%

24Iroquois County, ILIL26,150189−16%

25Coles County, ILIL46,607187−45%

26Boone County, ILIL53,568181−38%

27Effingham County, ILIL34,519175+62%

28Macon County, ILIL99,300174−23%

29Whiteside County, ILIL54,121167+2%

30Bond County, ILIL16,959166−28%

31Williamson County, ILIL67,225156+212%

32Stark County, ILIL5,319155+308%

33Jackson County, ILIL52,501149−39%

34Richland County, ILIL15,219145−34%

35Jo Daviess County, ILIL21,594144−53%

36Adams County, ILIL64,267141−44%

37Douglas County, ILIL19,880137−33%

38Fulton County, ILIL32,901133+80%

39Monroe County, ILIL34,840130−45%

40Bureau County, ILIL32,510128−71%

41LaSalle County, ILIL107,773123−55%

42Lee County, ILIL32,914121−34%

43Macoupin County, ILIL43,748115+72%

44Jefferson County, ILIL36,147113+59%

45Knox County, ILIL47,76796−19%

46Vermilion County, ILIL71,25993−41%

47Montgomery County, ILIL28,07684+115%

48Brown County, ILIL6,40181+376%

49Edwards County, ILIL5,89875+317%

50Morgan County, ILIL32,51575+25%

51Christian County, ILIL33,44372−18%

52Logan County, ILIL27,18272−37%

53Massac County, ILIL13,50269+165%

54Grundy County, ILIL54,05268−43%

55Greene County, ILIL11,31365−62%

56Marshall County, ILIL11,47365+12%

57Perry County, ILIL20,16064+28%

58Carroll County, ILIL15,41963−49%

59Crawford County, ILIL18,64861−67%

60Clinton County, ILIL37,12861−76%

61Jasper County, ILIL9,03250+257%

62Wayne County, ILIL15,88249−29%

63Cass County, ILIL12,46348+433%

64Menard County, ILIL11,86348+2%

65Lawrence County, ILIL13,79047+27%

66McDonough County, ILIL25,91643−39%

67Warren County, ILIL16,22242+11%

68White County, ILIL13,25042−28%

69Henry County, ILIL48,09540−80%

70Randolph County, ILIL29,92140+11%

71Marion County, ILIL36,38239−72%

72Mercer County, ILIL15,22939−5%

73Shelby County, ILIL20,57636+44%

74Putnam County, ILIL5,61935+133%

75De Witt County, ILIL15,11830−72%

76Piatt County, ILIL16,79130−61%

77Saline County, ILIL22,77228−38%

78Ford County, ILIL13,21623−79%

79Union County, ILIL16,65621−87%

80Washington County, ILIL13,56421+75%

81Pope County, ILIL3,67219+375%

82Franklin County, ILIL36,91618−84%

83Hancock County, ILIL16,80317−56%

84Mason County, ILIL12,41115−67%

85Henderson County, ILIL5,98413–

86Pike County, ILIL14,23112+300%

87Calhoun County, ILIL4,30010+0%

88Jersey County, ILIL21,1609−82%

89Johnson County, ILIL13,3639−71%

90Edgar County, ILIL16,3238−87%

91Schuyler County, ILIL6,6578+14%

92Scott County, ILIL4,8668−11%

93Hardin County, ILIL3,5886–

94Pulaski County, ILIL4,8206+50%

95Cumberland County, ILIL10,2085−87%

96Fayette County, ILIL20,7904−95%

97Hamilton County, ILIL7,8594–

98Wabash County, ILIL10,9073–

99Clark County, ILIL15,1142−97%

SHOWING 1–99 OF 99

Download CSV (full list, 99 rows)

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