RANKING · 2020 CENSUS · 99 SHOWN OF 99

Highest German population share, Iowa counties · 2020

Iowa counties ranked by the share of all residents who are German ancestry (2020 American Community Survey). A concentration measure: German residents as a percentage of total population. This list covers the 99 counties in Iowa that qualify, ranked against each other statewide. The median across all 99 is 33.9%.

German Americans: full group profile →

IowaAll states All rankings

SAME RANKING BYCities States Metros

YEAR2010 2020 2024

RANKPLACESTATEPOPGERMAN SHAREVS 2010

01Carroll County, IAIA20,30355.3%−7.5 pts

02Chickasaw County, IAIA11,66353.0%−3.2 pts

03Butler County, IAIA14,04950.6%−9.2 pts

04Ida County, IAIA6,77750.5%−8.7 pts

05Bremer County, IAIA25,29649.6%−10.3 pts

06Delaware County, IAIA17,67449.5%−8.3 pts

07Jackson County, IAIA19,28846.6%−9.5 pts

08Dubuque County, IAIA99,38146.4%−10.3 pts

09Grundy County, IAIA12,36146.3%−11.0 pts

10Sac County, IAIA9,52546.2%−11.8 pts

11Kossuth County, IAIA14,32245.0%−7.0 pts

12Plymouth County, IAIA25,69745.0%−8.9 pts

13Shelby County, IAIA11,68944.9%−5.1 pts

14Mitchell County, IAIA10,65044.3%−8.9 pts

15Franklin County, IAIA9,86843.8%−3.6 pts

16Floyd County, IAIA14,90143.2%−9.6 pts

17Clayton County, IAIA16,84543.2%−17.5 pts

18Dickinson County, IAIA18,07743.2%−2.9 pts

19Allamakee County, IAIA14,23843.0%−5.9 pts

20Winneshiek County, IAIA19,73342.5%−6.6 pts

21Jones County, IAIA21,25342.4%−8.1 pts

22Cedar County, IAIA18,35942.4%−7.7 pts

23Cherokee County, IAIA11,36942.1%−5.6 pts

24Fayette County, IAIA19,04741.8%−8.3 pts

25Iowa County, IAIA16,50441.7%−12.6 pts

26Pocahontas County, IAIA6,81941.7%−3.5 pts

27Osceola County, IAIA5,98041.6%−6.5 pts

28Hardin County, IAIA16,45541.1%−9.7 pts

29Buchanan County, IAIA20,88340.6%−8.3 pts

30Calhoun County, IAIA9,56240.4%−11.3 pts

31Palo Alto County, IAIA8,89940.3%−2.8 pts

32Clay County, IAIA16,20239.7%−5.8 pts

33Lyon County, IAIA12,35439.5%−7.7 pts

34Clinton County, IAIA46,00238.3%−9.1 pts

35O'Brien County, IAIA14,22038.3%−8.7 pts

36Howard County, IAIA9,41538.0%−10.1 pts

37Benton County, IAIA26,00437.4%−10.7 pts

38Hancock County, IAIA10,52837.0%−11.0 pts

39Winnebago County, IAIA10,25136.9%−2.2 pts

40Hamilton County, IAIA14,94436.2%+0.3 pts

41Audubon County, IAIA5,50935.9%−8.1 pts

42Wright County, IAIA12,80135.8%−1.0 pts

43Boone County, IAIA26,79935.6%−0.5 pts

44Cerro Gordo County, IAIA42,37235.4%−7.9 pts

45Crawford County, IAIA16,23735.3%−16.0 pts

46Cass County, IAIA12,96035.3%−7.4 pts

47Harrison County, IAIA14,62335.2%−8.9 pts

48Guthrie County, IAIA10,78234.9%−6.9 pts

49Monona County, IAIA8,53934.7%−8.2 pts

50Humboldt County, IAIA9,40933.9%−9.7 pts

51Adair County, IAIA7,40333.9%−9.0 pts

52Lee County, IAIA32,30633.6%−5.4 pts

53Mills County, IAIA14,79333.6%−1.7 pts

54Keokuk County, IAIA9,79733.4%−7.4 pts

55Story County, IAIA101,29132.8%−3.8 pts

56Scott County, IAIA175,25932.4%−4.6 pts

57Henry County, IAIA19,34932.0%−4.9 pts

58Dallas County, IAIA118,45731.8%−6.2 pts

59Pottawattamie County, IAIA92,99631.8%−8.5 pts

60Linn County, IAIA232,02831.6%−9.6 pts

61Emmet County, IAIA9,10731.3%−8.1 pts

62Washington County, IAIA22,66731.0%−10.8 pts

63Black Hawk County, IAIA131,53230.9%−10.8 pts

64Worth County, IAIA7,33830.9%−13.0 pts

65Des Moines County, IAIA38,07730.9%−6.6 pts

66Warren County, IAIA57,33130.6%−6.7 pts

67Adams County, IAIA3,61730.4%−3.2 pts

68Tama County, IAIA16,79630.4%−9.3 pts

69Greene County, IAIA8,65830.3%−13.0 pts

70Madison County, IAIA17,27030.1%−2.3 pts

71Fremont County, IAIA6,52229.9%−3.0 pts

72Van Buren County, IAIA7,13129.5%−2.8 pts

73Woodbury County, IAIA106,64928.8%−6.4 pts

74Poweshiek County, IAIA18,36828.6%−11.0 pts

75Johnson County, IAIA160,04428.1%−9.0 pts

76Lucas County, IAIA8,84728.0%−5.3 pts

77Webster County, IAIA36,83827.3%−9.3 pts

78Jasper County, IAIA38,15327.2%−3.2 pts

79Marion County, IAIA34,19226.9%−0.4 pts

80Sioux County, IAIA36,77426.5%+1.8 pts

81Marshall County, IAIA39,89026.5%−7.5 pts

82Page County, IAIA14,85626.4%−4.5 pts

83Buena Vista County, IAIA20,44925.7%−8.5 pts

84Monroe County, IAIA7,40625.6%+0.4 pts

85Montgomery County, IAIA10,00225.4%−6.1 pts

86Muscatine County, IAIA41,85325.1%−12.6 pts

87Polk County, IAIA516,54624.8%−5.7 pts

88Mahaska County, IAIA21,88024.0%−1.9 pts

89Taylor County, IAIA5,83523.9%−3.0 pts

90Wayne County, IAIA6,73823.2%−1.8 pts

91Union County, IAIA11,82923.0%−5.6 pts

92Davis County, IAIA9,23022.9%−7.0 pts

93Louisa County, IAIA10,41622.8%−15.9 pts

94Ringgold County, IAIA4,64222.3%−8.8 pts

95Appanoose County, IAIA12,07721.7%−3.1 pts

96Wapello County, IAIA35,21021.6%−1.8 pts

97Decatur County, IAIA7,65521.5%−0.3 pts

98Clarke County, IAIA9,57421.3%−8.1 pts

99Jefferson County, IAIA15,29119.3%−9.9 pts

SHOWING 1–99 OF 99

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