RANKING · 2010 CENSUS · 99 SHOWN OF 99

Largest German population, Iowa counties · 2010

Iowa counties ranked by the number of residents who are German ancestry, from the 2010 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 Iowa that qualify, ranked against each other statewide. The median across all 99 is 7,004.

German Americans: full group profile →

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

RANKPLACESTATEPOPGERMAN POPULATIONVS –

01Polk County, IAIA516,546128,107–

02Linn County, IAIA232,02885,403–

03Scott County, IAIA175,25959,955–

04Black Hawk County, IAIA131,53253,885–

05Dubuque County, IAIA99,38152,509–

06Johnson County, IAIA160,04447,169–

07Pottawattamie County, IAIA92,99637,064–

08Woodbury County, IAIA106,64935,628–

09Story County, IAIA101,29132,079–

10Dallas County, IAIA118,45723,431–

11Clinton County, IAIA46,00223,372–

12Cerro Gordo County, IAIA42,37219,192–

13Warren County, IAIA57,33116,907–

14Muscatine County, IAIA41,85316,024–

15Des Moines County, IAIA38,07715,090–

16Bremer County, IAIA25,29614,500–

17Lee County, IAIA32,30614,058–

18Webster County, IAIA36,83814,032–

19Marshall County, IAIA39,89013,626–

20Plymouth County, IAIA25,69713,442–

21Carroll County, IAIA20,30313,070–

22Benton County, IAIA26,00412,558–

23Jasper County, IAIA38,15311,246–

24Jackson County, IAIA19,28811,176–

25Clayton County, IAIA16,84511,042–

26Fayette County, IAIA19,04710,518–

27Jones County, IAIA21,25310,459–

28Delaware County, IAIA17,67410,323–

29Winneshiek County, IAIA19,73310,320–

30Buchanan County, IAIA20,88310,284–

31Boone County, IAIA26,7999,527–

32Cedar County, IAIA18,3599,217–

33Marion County, IAIA34,1929,128–

34Washington County, IAIA22,6679,024–

35Hardin County, IAIA16,4558,979–

36Butler County, IAIA14,0498,906–

37Iowa County, IAIA16,5048,882–

38Crawford County, IAIA16,2378,700–

39Floyd County, IAIA14,9018,656–

40Wapello County, IAIA35,2108,334–

41Sioux County, IAIA36,7748,237–

42Kossuth County, IAIA14,3228,192–

43Dickinson County, IAIA18,0777,687–

44Clay County, IAIA16,2027,613–

45Poweshiek County, IAIA18,3687,538–

46Henry County, IAIA19,3497,490–

47Tama County, IAIA16,7967,120–

48Grundy County, IAIA12,3617,111–

49Chickasaw County, IAIA11,6637,034–

50Allamakee County, IAIA14,2387,004–

51Buena Vista County, IAIA20,4496,843–

52O'Brien County, IAIA14,2206,770–

53Harrison County, IAIA14,6236,648–

54Shelby County, IAIA11,6896,161–

55Sac County, IAIA9,5256,074–

56Cass County, IAIA12,9605,957–

57Mahaska County, IAIA21,8805,803–

58Cherokee County, IAIA11,3695,763–

59Mitchell County, IAIA10,6505,742–

60Hamilton County, IAIA14,9445,705–

61Hancock County, IAIA10,5285,520–

62Lyon County, IAIA12,3545,454–

63Mills County, IAIA14,7935,347–

64Calhoun County, IAIA9,5625,095–

65Franklin County, IAIA9,8685,069–

66Madison County, IAIA17,2705,023–

67Page County, IAIA14,8564,959–

68Wright County, IAIA12,8014,935–

69Jefferson County, IAIA15,2914,873–

70Howard County, IAIA9,4154,621–

71Guthrie County, IAIA10,7824,614–

72Louisa County, IAIA10,4164,517–

73Keokuk County, IAIA9,7974,333–

74Humboldt County, IAIA9,4094,321–

75Winnebago County, IAIA10,2514,284–

76Ida County, IAIA6,7774,250–

77Palo Alto County, IAIA8,8994,101–

78Emmet County, IAIA9,1074,100–

79Greene County, IAIA8,6584,097–

80Monona County, IAIA8,5394,006–

81Union County, IAIA11,8293,550–

82Montgomery County, IAIA10,0023,433–

83Pocahontas County, IAIA6,8193,395–

84Worth County, IAIA7,3383,351–

85Adair County, IAIA7,4033,338–

86Appanoose County, IAIA12,0773,235–

87Osceola County, IAIA5,9803,160–

88Lucas County, IAIA8,8473,034–

89Audubon County, IAIA5,5092,726–

90Clarke County, IAIA9,5742,712–

91Davis County, IAIA9,2302,597–

92Fremont County, IAIA6,5222,481–

93Van Buren County, IAIA7,1312,468–

94Monroe County, IAIA7,4061,995–

95Decatur County, IAIA7,6551,856–

96Taylor County, IAIA5,8351,722–

97Ringgold County, IAIA4,6421,608–

98Wayne County, IAIA6,7381,605–

99Adams County, IAIA3,6171,387–

SHOWING 1–99 OF 99

Download CSV (full list, 99 rows)

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