RANKING · 2024 ACS · 96 SHOWN OF 96

Largest Swiss population, Iowa counties

Iowa counties ranked by the number of residents who are Swiss 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 96 counties in Iowa that qualify, ranked against each other statewide.

IowaAll 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 2000

01Polk County, IAIA516,5461,187–

02Linn County, IAIA232,0281,070–

03Johnson County, IAIA160,044928–

04Washington County, IAIA22,667851–

05Dubuque County, IAIA99,381587–

06Black Hawk County, IAIA131,532540–

07Scott County, IAIA175,259500–

08Dallas County, IAIA118,457488–

09Story County, IAIA101,291482–

10Howard County, IAIA9,415480–

11Des Moines County, IAIA38,077379–

12Fayette County, IAIA19,047369–

13Jones County, IAIA21,253340–

14Henry County, IAIA19,349324–

15Jackson County, IAIA19,288291–

16Woodbury County, IAIA106,649266–

17Clayton County, IAIA16,845206–

18Lyon County, IAIA12,354201–

19Davis County, IAIA9,230187–

20Pottawattamie County, IAIA92,996171–

21Delaware County, IAIA17,674167–

22Jefferson County, IAIA15,291167–

23Cerro Gordo County, IAIA42,372146–

24Wayne County, IAIA6,738144–

25Palo Alto County, IAIA8,899142–

26Clinton County, IAIA46,002136–

27Marshall County, IAIA39,890133–

28Warren County, IAIA57,331133–

29Sioux County, IAIA36,774128–

30Mitchell County, IAIA10,650126–

31Jasper County, IAIA38,153112–

32Iowa County, IAIA16,504101–

33Muscatine County, IAIA41,853100–

34Marion County, IAIA34,19294–

35Buchanan County, IAIA20,88389–

36Kossuth County, IAIA14,32288–

37Madison County, IAIA17,27082–

38Floyd County, IAIA14,90181–

39Union County, IAIA11,82980–

40Webster County, IAIA36,83880–

41Benton County, IAIA26,00473–

42Harrison County, IAIA14,62371–

43Cedar County, IAIA18,35970–

44Taylor County, IAIA5,83567–

45Van Buren County, IAIA7,13166–

46Chickasaw County, IAIA11,66365–

47Decatur County, IAIA7,65560–

48Allamakee County, IAIA14,23853–

49Bremer County, IAIA25,29651–

50Lee County, IAIA32,30650–

51O'Brien County, IAIA14,22050–

52Boone County, IAIA26,79946–

53Poweshiek County, IAIA18,36846–

54Clay County, IAIA16,20243–

55Montgomery County, IAIA10,00240–

56Guthrie County, IAIA10,78233–

57Winnebago County, IAIA10,25133–

58Ida County, IAIA6,77731–

59Louisa County, IAIA10,41631–

60Appanoose County, IAIA12,07730–

61Mills County, IAIA14,79330–

62Wapello County, IAIA35,21028–

63Dickinson County, IAIA18,07727–

64Hardin County, IAIA16,45526–

65Calhoun County, IAIA9,56225–

66Plymouth County, IAIA25,69725–

67Winneshiek County, IAIA19,73325–

68Wright County, IAIA12,80125–

69Butler County, IAIA14,04924–

70Hancock County, IAIA10,52823–

71Carroll County, IAIA20,30320–

72Humboldt County, IAIA9,40920–

73Mahaska County, IAIA21,88020–

74Crawford County, IAIA16,23719–

75Cass County, IAIA12,96018–

76Page County, IAIA14,85618–

77Tama County, IAIA16,79617–

78Cherokee County, IAIA11,36915–

79Fremont County, IAIA6,52212–

80Shelby County, IAIA11,68912–

81Clarke County, IAIA9,57411–

82Hamilton County, IAIA14,94411–

83Adams County, IAIA3,6179–

84Keokuk County, IAIA9,7977–

85Pocahontas County, IAIA6,8197–

86Adair County, IAIA7,4036–

87Grundy County, IAIA12,3616–

88Monona County, IAIA8,5396–

89Monroe County, IAIA7,4066–

90Sac County, IAIA9,5256–

91Buena Vista County, IAIA20,4495–

92Audubon County, IAIA5,5094–

93Greene County, IAIA8,6584–

94Ringgold County, IAIA4,6423–

95Worth County, IAIA7,3382–

96Osceola County, IAIA5,9801–

SHOWING 1–96 OF 96

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