RANKING · 2024 ACS · 96 SHOWN OF 96

Highest Swiss population share, Iowa counties

Iowa counties ranked by the share of all residents who are Swiss ancestry (2024 American Community Survey). A concentration measure: Swiss residents as a percentage of total population. This list covers the 96 counties in Iowa that qualify, ranked against each other statewide. The median across all 96 is 0.3%. Biggest climber in the top 100 since 2020: Madison County, IA, up 66 places to #27.

Swiss Americans: full group profile →

IowaAll states All rankings

SAME RANKING BYCities States Metros

YEAR2010 2020 2024

RANKPLACESTATEPOPSWISS SHAREVS 2010

01Howard County, IAIA9,4155.1%+3.7 pts

02▲1Washington County, IAIA22,6673.8%+1.3 pts

03▲41Wayne County, IAIA6,7382.2%+1.9 pts

04▼2Davis County, IAIA9,2302.0%0.0 pts

05▼1Fayette County, IAIA19,0471.9%−0.2 pts

06▲1Lyon County, IAIA12,3541.7%−1.9 pts

07▼1Jones County, IAIA21,2531.6%+0.5 pts

08▲5Henry County, IAIA19,3491.6%+1.0 pts

09▲11Palo Alto County, IAIA8,8991.6%−0.8 pts

10▲1Jackson County, IAIA19,2881.5%+1.1 pts

11▼3Clayton County, IAIA16,8451.2%−0.9 pts

12▲3Mitchell County, IAIA10,6501.2%+0.2 pts

13▼4Taylor County, IAIA5,8351.1%+0.6 pts

14▲37Jefferson County, IAIA15,2911.1%+0.6 pts

15▲12Des Moines County, IAIA38,0771.0%+0.5 pts

16▲26Delaware County, IAIA17,6741.0%+0.3 pts

17▼12Van Buren County, IAIA7,1310.9%−0.3 pts

18▲37Decatur County, IAIA7,6550.8%−0.5 pts

19▼1Union County, IAIA11,8290.7%+0.3 pts

20▲2Iowa County, IAIA16,5040.6%−0.8 pts

21▲8Kossuth County, IAIA14,3220.6%−0.3 pts

22▼3Dubuque County, IAIA99,3810.6%−0.4 pts

23▼6Johnson County, IAIA160,0440.6%−0.1 pts

24▲12Chickasaw County, IAIA11,6630.6%−0.4 pts

25▼15Floyd County, IAIA14,9010.5%0.0 pts

26▲55Harrison County, IAIA14,6230.5%+0.1 pts

27▲66Madison County, IAIA17,2700.5%+0.3 pts

28▲7Story County, IAIA101,2910.5%−0.2 pts

29▲9Linn County, IAIA232,0280.5%−0.2 pts

30▼6Dallas County, IAIA118,4570.5%−0.3 pts

31▼17Ida County, IAIA6,7770.4%+0.1 pts

32▲1Buchanan County, IAIA20,8830.4%−0.1 pts

33▼7Black Hawk County, IAIA131,5320.4%0.0 pts

34▲5Montgomery County, IAIA10,0020.4%0.0 pts

35▲27Cedar County, IAIA18,3590.4%−0.1 pts

36▼20Allamakee County, IAIA14,2380.4%−1.5 pts

37▲10O'Brien County, IAIA14,2200.4%+0.3 pts

38▼10Sioux County, IAIA36,7740.4%+0.2 pts

39▲35Cerro Gordo County, IAIA42,3720.3%−0.2 pts

40▲39Marshall County, IAIA39,8900.3%−0.1 pts

41▲57Winnebago County, IAIA10,2510.3%−0.1 pts

42▲31Guthrie County, IAIA10,7820.3%−0.2 pts

43▲2Jasper County, IAIA38,1530.3%−0.1 pts

44▲20Clinton County, IAIA46,0020.3%0.0 pts

45▼5Louisa County, IAIA10,4160.3%−0.1 pts

46▲4Scott County, IAIA175,2590.3%−0.3 pts

47▼17Benton County, IAIA26,0040.3%−0.2 pts

48▼23Marion County, IAIA34,1920.3%+0.3 pts

49▲3Clay County, IAIA16,2020.3%−0.2 pts

50▲41Calhoun County, IAIA9,5620.3%−0.1 pts

51▲31Woodbury County, IAIA106,6490.3%−0.1 pts

52▲13Adams County, IAIA3,6170.2%−0.5 pts

53▲1Poweshiek County, IAIA18,3680.2%−0.1 pts

54▲35Appanoose County, IAIA12,0770.2%−0.6 pts

55▼2Warren County, IAIA57,3310.2%0.0 pts

56▲5Polk County, IAIA516,5460.2%−0.1 pts

57▲10Muscatine County, IAIA41,8530.2%0.0 pts

58▲14Webster County, IAIA36,8380.2%0.0 pts

59▼38Hancock County, IAIA10,5280.2%+0.1 pts

60▼37Humboldt County, IAIA9,4090.2%−0.1 pts

61▼4Mills County, IAIA14,7930.2%−0.2 pts

62▲22Bremer County, IAIA25,2960.2%−0.2 pts

63▼31Wright County, IAIA12,8010.2%+0.1 pts

64▼4Fremont County, IAIA6,5220.2%+0.1 pts

65▲22Pottawattamie County, IAIA92,9960.2%−0.3 pts

66▼3Boone County, IAIA26,7990.2%−0.4 pts

67▼36Butler County, IAIA14,0490.2%−0.1 pts

68▲1Hardin County, IAIA16,4550.2%−0.3 pts

69▲25Lee County, IAIA32,3060.2%+0.1 pts

70▲22Dickinson County, IAIA18,0770.2%−0.7 pts

71▲9Cass County, IAIA12,9600.1%−0.1 pts

72▼29Cherokee County, IAIA11,3690.1%−0.5 pts

73▼24Winneshiek County, IAIA19,7330.1%−0.4 pts

74▲11Page County, IAIA14,8560.1%−0.1 pts

75▼29Crawford County, IAIA16,2370.1%0.0 pts

76▼17Clarke County, IAIA9,5740.1%−0.1 pts

77▲6Shelby County, IAIA11,6890.1%−0.1 pts

78▼44Tama County, IAIA16,7960.1%0.0 pts

79▼8Pocahontas County, IAIA6,8190.1%−0.5 pts

80▼4Carroll County, IAIA20,3030.1%−0.4 pts

81▼15Plymouth County, IAIA25,6970.1%−0.3 pts

82▼4Mahaska County, IAIA21,8800.1%−0.2 pts

83▼13Adair County, IAIA7,4030.1%−0.2 pts

84▼7Monroe County, IAIA7,4060.1%–

85▼29Wapello County, IAIA35,2100.1%0.0 pts

86▼45Hamilton County, IAIA14,9440.1%−0.4 pts

87▼1Audubon County, IAIA5,5090.1%−0.2 pts

88▼76Keokuk County, IAIA9,7970.1%−0.4 pts

89▲1Monona County, IAIA8,5390.1%−0.3 pts

90Ringgold County, IAIA4,6420.1%−0.1 pts

91▼54Sac County, IAIA9,5250.1%−0.2 pts

92▼44Grundy County, IAIA12,3610.0%−0.1 pts

93▼18Greene County, IAIA8,6580.0%−0.4 pts

94▼26Worth County, IAIA7,3380.0%−0.3 pts

95▼37Buena Vista County, IAIA20,4490.0%−0.2 pts

96Osceola County, IAIA5,9800.0%−0.6 pts

SHOWING 1–96 OF 96

Download CSV (full list, 96 rows)

UPDATED 2026-09-11 · DATA: US CENSUS BUREAU ACS 5-YEAR ESTIMATES