RANKING · 2024 ACS · 99 SHOWN OF 99

Most racially diverse, Iowa counties

Iowa counties ranked by the CensusEasy Diversity Score (0 to 100), the chance two random residents are of a different race or ethnicity (2024 ACS). This list covers the 99 counties in Iowa that qualify, ranked against each other statewide.

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IowaAll states All rankings

SAME RANKING BYCities States Metros ZIP codes

RANKPLACESTATEPOPDIVERSITY SCOREVS –

01Buena Vista County, IAIA20,44979–

02Crawford County, IAIA16,23765–

03Woodbury County, IAIA106,64963–

04Marshall County, IAIA39,89063–

05Polk County, IAIA516,54656–

06Johnson County, IAIA160,04453–

07Wapello County, IAIA35,21051–

08Muscatine County, IAIA41,85350–

09Scott County, IAIA175,25949–

10Wright County, IAIA12,80149–

11Louisa County, IAIA10,41647–

12Black Hawk County, IAIA131,53247–

13Clarke County, IAIA9,57446–

14Tama County, IAIA16,79646–

15Dallas County, IAIA118,45742–

16Story County, IAIA101,29142–

17Franklin County, IAIA9,86841–

18Linn County, IAIA232,02839–

19Jefferson County, IAIA15,29139–

20Sioux County, IAIA36,77437–

21Webster County, IAIA36,83836–

22Hamilton County, IAIA14,94436–

23Osceola County, IAIA5,98035–

24Des Moines County, IAIA38,07735–

25Pottawattamie County, IAIA92,99634–

26Emmet County, IAIA9,10733–

27Henry County, IAIA19,34931–

28Allamakee County, IAIA14,23830–

29O'Brien County, IAIA14,22030–

30Plymouth County, IAIA25,69727–

31Dubuque County, IAIA99,38127–

32Cerro Gordo County, IAIA42,37227–

33Floyd County, IAIA14,90126–

34Pocahontas County, IAIA6,81926–

35Cherokee County, IAIA11,36926–

36Washington County, IAIA22,66726–

37Winnebago County, IAIA10,25126–

38Clinton County, IAIA46,00225–

39Taylor County, IAIA5,83525–

40Poweshiek County, IAIA18,36824–

41Hardin County, IAIA16,45523–

42Decatur County, IAIA7,65523–

43Hancock County, IAIA10,52823–

44Lee County, IAIA32,30623–

45Page County, IAIA14,85623–

46Humboldt County, IAIA9,40922–

47Jasper County, IAIA38,15322–

48Fayette County, IAIA19,04721–

49Clay County, IAIA16,20221–

50Palo Alto County, IAIA8,89921–

51Shelby County, IAIA11,68920–

52Calhoun County, IAIA9,56220–

53Fremont County, IAIA6,52220–

54Jones County, IAIA21,25320–

55Ida County, IAIA6,77720–

56Mahaska County, IAIA21,88020–

57Kossuth County, IAIA14,32219–

58Union County, IAIA11,82919–

59Sac County, IAIA9,52519–

60Warren County, IAIA57,33119–

61Carroll County, IAIA20,30319–

62Montgomery County, IAIA10,00219–

63Bremer County, IAIA25,29618–

64Greene County, IAIA8,65818–

65Guthrie County, IAIA10,78218–

66Iowa County, IAIA16,50418–

67Chickasaw County, IAIA11,66318–

68Mills County, IAIA14,79317–

69Monona County, IAIA8,53917–

70Boone County, IAIA26,79917–

71Howard County, IAIA9,41517–

72Adair County, IAIA7,40317–

73Cedar County, IAIA18,35916–

74Winneshiek County, IAIA19,73316–

75Worth County, IAIA7,33816–

76Marion County, IAIA34,19216–

77Dickinson County, IAIA18,07716–

78Lyon County, IAIA12,35416–

79Cass County, IAIA12,96016–

80Jackson County, IAIA19,28815–

81Appanoose County, IAIA12,07715–

82Wayne County, IAIA6,73815–

83Audubon County, IAIA5,50915–

84Davis County, IAIA9,23015–

85Lucas County, IAIA8,84714–

86Delaware County, IAIA17,67414–

87Madison County, IAIA17,27014–

88Van Buren County, IAIA7,13114–

89Harrison County, IAIA14,62313–

90Benton County, IAIA26,00413–

91Adams County, IAIA3,61713–

92Butler County, IAIA14,04913–

93Keokuk County, IAIA9,79713–

94Ringgold County, IAIA4,64213–

95Monroe County, IAIA7,40613–

96Grundy County, IAIA12,36112–

97Clayton County, IAIA16,84512–

98Buchanan County, IAIA20,88312–

99Mitchell County, IAIA10,65012–

SHOWING 1–99 OF 99

Download CSV (full list, 99 rows)How this score is calculated

UPDATED 2026-07-15 · DATA: US CENSUS BUREAU ACS 5-YEAR ESTIMATES