RANKING · 2020 CENSUS · 99 SHOWN OF 99

Highest Dutch population share, Iowa counties · 2020

Iowa counties ranked by the share of all residents who are Dutch ancestry (2020 American Community Survey). A concentration measure: Dutch 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 2.6%.

Dutch Americans: full group profile →

IowaAll states All rankings

SAME RANKING BYCities States Metros

YEAR2010 2020 2024

RANKPLACESTATEPOPDUTCH SHAREVS 2010

01Sioux County, IAIA36,77445.0%−6.3 pts

02Lyon County, IAIA12,35434.4%+2.5 pts

03O'Brien County, IAIA14,22023.9%+1.2 pts

04Marion County, IAIA34,19218.9%−9.1 pts

05Osceola County, IAIA5,98015.8%−6.8 pts

06Mahaska County, IAIA21,88015.8%−7.4 pts

07Jasper County, IAIA38,15313.2%+0.1 pts

08Poweshiek County, IAIA18,3687.9%+1.4 pts

09Davis County, IAIA9,2307.6%−1.4 pts

10Monroe County, IAIA7,4066.8%−2.9 pts

11Dickinson County, IAIA18,0776.3%−0.3 pts

12Plymouth County, IAIA25,6976.1%−1.2 pts

13Clarke County, IAIA9,5745.2%+1.0 pts

14Cherokee County, IAIA11,3694.5%+1.2 pts

15Grundy County, IAIA12,3614.4%−1.7 pts

16Wayne County, IAIA6,7384.2%−1.0 pts

17Keokuk County, IAIA9,7974.2%−2.6 pts

18Boone County, IAIA26,7994.0%+1.3 pts

19Winnebago County, IAIA10,2514.0%+1.6 pts

20Warren County, IAIA57,3313.9%−1.8 pts

21Sac County, IAIA9,5253.8%+1.2 pts

22Hancock County, IAIA10,5283.8%−1.3 pts

23Greene County, IAIA8,6583.8%−2.4 pts

24Woodbury County, IAIA106,6493.8%−0.5 pts

25Wapello County, IAIA35,2103.7%−1.7 pts

26Lucas County, IAIA8,8473.7%−1.4 pts

27Clinton County, IAIA46,0023.6%−1.7 pts

28Butler County, IAIA14,0493.6%−1.6 pts

29Union County, IAIA11,8293.5%−1.6 pts

30Iowa County, IAIA16,5043.5%−0.2 pts

31Story County, IAIA101,2913.1%−0.2 pts

32Polk County, IAIA516,5463.1%−1.5 pts

33Mills County, IAIA14,7933.0%−0.4 pts

34Ida County, IAIA6,7773.0%−0.7 pts

35Van Buren County, IAIA7,1313.0%−1.2 pts

36Emmet County, IAIA9,1072.9%0.0 pts

37Adams County, IAIA3,6172.9%−0.1 pts

38Washington County, IAIA22,6672.9%−0.4 pts

39Clay County, IAIA16,2022.9%−3.1 pts

40Jefferson County, IAIA15,2912.9%−1.9 pts

41Dallas County, IAIA118,4572.8%−2.1 pts

42Henry County, IAIA19,3492.8%−0.7 pts

43Des Moines County, IAIA38,0772.8%+0.2 pts

44Monona County, IAIA8,5392.8%−1.8 pts

45Appanoose County, IAIA12,0772.7%−2.6 pts

46Hamilton County, IAIA14,9442.7%−2.0 pts

47Floyd County, IAIA14,9012.7%−0.3 pts

48Cerro Gordo County, IAIA42,3722.6%−0.1 pts

49Guthrie County, IAIA10,7822.6%−0.6 pts

50Madison County, IAIA17,2702.6%−1.7 pts

51Cass County, IAIA12,9602.6%+0.7 pts

52Ringgold County, IAIA4,6422.5%−1.7 pts

53Mitchell County, IAIA10,6502.4%+0.2 pts

54Franklin County, IAIA9,8682.4%−0.8 pts

55Palo Alto County, IAIA8,8992.4%−1.2 pts

56Marshall County, IAIA39,8902.3%−1.3 pts

57Hardin County, IAIA16,4552.3%−0.8 pts

58Decatur County, IAIA7,6552.2%−3.2 pts

59Taylor County, IAIA5,8352.2%−1.3 pts

60Jones County, IAIA21,2532.2%+0.2 pts

61Montgomery County, IAIA10,0022.2%0.0 pts

62Buena Vista County, IAIA20,4492.2%−0.5 pts

63Johnson County, IAIA160,0442.2%−0.8 pts

64Howard County, IAIA9,4152.1%−0.1 pts

65Harrison County, IAIA14,6232.1%−1.0 pts

66Calhoun County, IAIA9,5622.1%−0.4 pts

67Benton County, IAIA26,0042.1%−1.3 pts

68Muscatine County, IAIA41,8532.1%−1.1 pts

69Buchanan County, IAIA20,8832.1%−2.0 pts

70Black Hawk County, IAIA131,5322.0%−0.6 pts

71Fremont County, IAIA6,5222.0%−1.0 pts

72Wright County, IAIA12,8012.0%−0.9 pts

73Bremer County, IAIA25,2962.0%−1.3 pts

74Kossuth County, IAIA14,3222.0%−0.5 pts

75Pocahontas County, IAIA6,8192.0%−0.2 pts

76Cedar County, IAIA18,3591.9%−1.4 pts

77Adair County, IAIA7,4031.9%−0.6 pts

78Linn County, IAIA232,0281.9%−1.7 pts

79Page County, IAIA14,8561.8%−1.0 pts

80Webster County, IAIA36,8381.8%−0.6 pts

81Scott County, IAIA175,2591.8%−0.8 pts

82Pottawattamie County, IAIA92,9961.8%−0.9 pts

83Chickasaw County, IAIA11,6631.8%−0.3 pts

84Worth County, IAIA7,3381.8%−0.1 pts

85Fayette County, IAIA19,0471.7%−1.1 pts

86Crawford County, IAIA16,2371.7%−0.2 pts

87Louisa County, IAIA10,4161.7%−1.5 pts

88Tama County, IAIA16,7961.6%−1.2 pts

89Delaware County, IAIA17,6741.5%−1.4 pts

90Dubuque County, IAIA99,3811.5%−0.9 pts

91Audubon County, IAIA5,5091.4%−0.9 pts

92Jackson County, IAIA19,2881.4%−0.9 pts

93Lee County, IAIA32,3061.3%−0.9 pts

94Carroll County, IAIA20,3031.3%−0.8 pts

95Humboldt County, IAIA9,4091.3%−0.8 pts

96Winneshiek County, IAIA19,7331.2%−0.1 pts

97Shelby County, IAIA11,6891.0%−1.9 pts

98Allamakee County, IAIA14,2380.9%−0.3 pts

99Clayton County, IAIA16,8450.9%−0.5 pts

SHOWING 1–99 OF 99

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