RANKING · 2020 CENSUS · 99 SHOWN OF 99

Highest White (non-Hispanic) population share, Iowa counties · 2020

Iowa counties ranked by the share of all residents who are White, not Hispanic or Latino (2020 American Community Survey). A concentration measure: White (non-Hispanic) residents as a percentage of total population. This list covers the 99 counties in Iowa that qualify, ranked against each other statewide.

IowaAll states All rankings

SAME RANKING BYCities States Metros ZIP codes

YEAR1990 2000 2010 2020 2024

Highest White (non-Hispanic) population share by state

RANKPLACESTATEPOPWHITE, NON-HISPANICVS 2000

01Butler County, IAIA14,04995.9%−2.6 pts

02Audubon County, IAIA5,50995.9%−2.8 pts

03Davis County, IAIA9,23095.9%−2.1 pts

04Wayne County, IAIA6,73895.9%−2.4 pts

05Grundy County, IAIA12,36195.6%−3.0 pts

06Delaware County, IAIA17,67495.5%−3.2 pts

07Van Buren County, IAIA7,13195.5%−2.6 pts

08Mitchell County, IAIA10,65095.4%−3.5 pts

09Ringgold County, IAIA4,64295.4%−3.5 pts

10Buchanan County, IAIA20,88395.1%−2.8 pts

11Adams County, IAIA3,61795.0%−3.5 pts

12Monroe County, IAIA7,40694.9%−3.2 pts

13Harrison County, IAIA14,62394.8%−3.4 pts

14Clayton County, IAIA16,84594.5%−3.9 pts

15Keokuk County, IAIA9,79794.4%−4.3 pts

16Lucas County, IAIA8,84794.4%−3.6 pts

17Dickinson County, IAIA18,07794.4%−4.0 pts

18Jackson County, IAIA19,28894.3%−4.3 pts

19Adair County, IAIA7,40394.3%−4.2 pts

20Benton County, IAIA26,00494.1%−4.2 pts

21Appanoose County, IAIA12,07794.1%−3.5 pts

22Howard County, IAIA9,41593.9%−4.8 pts

23Cass County, IAIA12,96093.8%−4.6 pts

24Guthrie County, IAIA10,78293.8%−4.3 pts

25Madison County, IAIA17,27093.7%−4.5 pts

26Cedar County, IAIA18,35993.7%−4.2 pts

27Bremer County, IAIA25,29693.7%−4.2 pts

28Lyon County, IAIA12,35493.6%−5.3 pts

29Ida County, IAIA6,77793.6%−5.2 pts

30Carroll County, IAIA20,30393.5%−5.1 pts

31Greene County, IAIA8,65893.4%−4.0 pts

32Sac County, IAIA9,52593.3%−4.7 pts

33Worth County, IAIA7,33893.3%−3.9 pts

34Calhoun County, IAIA9,56293.3%−4.3 pts

35Palo Alto County, IAIA8,89993.3%−4.8 pts

36Winneshiek County, IAIA19,73393.2%−4.2 pts

37Fremont County, IAIA6,52293.0%−3.8 pts

38Chickasaw County, IAIA11,66393.0%−5.5 pts

39Montgomery County, IAIA10,00293.0%−4.6 pts

40Kossuth County, IAIA14,32292.8%−5.5 pts

41Shelby County, IAIA11,68992.7%−5.5 pts

42Fayette County, IAIA19,04792.5%−4.4 pts

43Boone County, IAIA26,79992.5%−5.6 pts

44Marion County, IAIA34,19292.5%−4.4 pts

45Union County, IAIA11,82992.5%−5.4 pts

46Iowa County, IAIA16,50492.4%−5.8 pts

47Jones County, IAIA21,25392.0%−4.0 pts

48Mills County, IAIA14,79392.0%−5.1 pts

49Monona County, IAIA8,53992.0%−5.9 pts

50Humboldt County, IAIA9,40991.9%−6.2 pts

51Clay County, IAIA16,20291.7%−5.6 pts

52Decatur County, IAIA7,65591.7%−3.8 pts

53Cherokee County, IAIA11,36991.5%−6.3 pts

54Warren County, IAIA57,33191.4%−6.1 pts

55Mahaska County, IAIA21,88091.3%−5.5 pts

56Poweshiek County, IAIA18,36891.1%−5.1 pts

57Jasper County, IAIA38,15391.1%−5.8 pts

58Hancock County, IAIA10,52890.9%−5.8 pts

59Hardin County, IAIA16,45590.6%−5.5 pts

60Pocahontas County, IAIA6,81990.2%−7.8 pts

61Page County, IAIA14,85690.0%−5.2 pts

62Taylor County, IAIA5,83590.0%−5.4 pts

63Plymouth County, IAIA25,69789.3%−8.2 pts

64Lee County, IAIA32,30689.1%−4.0 pts

65Floyd County, IAIA14,90189.0%−8.4 pts

66O'Brien County, IAIA14,22088.9%−7.9 pts

67Clinton County, IAIA46,00288.7%−6.4 pts

68Winnebago County, IAIA10,25188.7%−7.7 pts

69Washington County, IAIA22,66788.4%−7.5 pts

70Allamakee County, IAIA14,23888.2%−7.1 pts

71Dubuque County, IAIA99,38188.0%−8.5 pts

72Cerro Gordo County, IAIA42,37287.7%−7.0 pts

73Emmet County, IAIA9,10786.6%−7.9 pts

74Osceola County, IAIA5,98086.3%−11.0 pts

75Henry County, IAIA19,34986.1%−8.0 pts

76Jefferson County, IAIA15,29185.7%−9.0 pts

77Webster County, IAIA36,83884.8%−7.6 pts

78Pottawattamie County, IAIA92,99684.5%−9.7 pts

79Hamilton County, IAIA14,94484.5%−11.6 pts

80Des Moines County, IAIA38,07784.2%−8.6 pts

81Sioux County, IAIA36,77483.4%−12.7 pts

82Dallas County, IAIA118,45782.0%−10.4 pts

83Linn County, IAIA232,02881.6%−11.5 pts

84Story County, IAIA101,29181.1%−9.2 pts

85Clarke County, IAIA9,57480.4%−14.3 pts

86Franklin County, IAIA9,86880.2%−13.2 pts

87Louisa County, IAIA10,41678.3%−8.1 pts

88Wright County, IAIA12,80178.1%−16.0 pts

89Tama County, IAIA16,79677.5%−11.6 pts

90Black Hawk County, IAIA131,53277.1%−10.5 pts

91Scott County, IAIA175,25977.0%−9.5 pts

92Wapello County, IAIA35,21077.0%−18.2 pts

93Muscatine County, IAIA41,85375.5%−10.2 pts

94Johnson County, IAIA160,04474.9%−13.9 pts

95Polk County, IAIA516,54673.6%−12.9 pts

96Marshall County, IAIA39,89068.4%−19.7 pts

97Woodbury County, IAIA106,64968.2%−15.4 pts

98Crawford County, IAIA16,23764.3%−25.1 pts

99Buena Vista County, IAIA20,44954.6%−27.5 pts

SHOWING 1–99 OF 99

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UPDATED 2026-08-08 · DATA: US CENSUS BUREAU DECENNIAL CENSUS