RANKING · 2000 CENSUS · 99 SHOWN OF 99

Most racially diverse, Iowa counties · 2000

Iowa counties ranked by the CensusEasy Diversity Score (0 to 100), the chance two random residents are of a different race or ethnicity (2023 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

YEAR1990 2000 2010 2020 2024

RANKPLACESTATEPOPDIVERSITY SCOREVS 2000

01Buena Vista County, IAIA20,44937+0%

02Woodbury County, IAIA106,64931+0%

03Muscatine County, IAIA41,85330+0%

04Louisa County, IAIA10,41629+0%

05Polk County, IAIA516,54628+0%

06Scott County, IAIA175,25927+0%

07Black Hawk County, IAIA131,53225+0%

08Marshall County, IAIA39,89024+0%

09Crawford County, IAIA16,23723+0%

10Johnson County, IAIA160,04422+0%

11Story County, IAIA101,29120+0%

12Dallas County, IAIA118,45716+0%

13Webster County, IAIA36,83815+0%

14Franklin County, IAIA9,86815+0%

15Des Moines County, IAIA38,07714+0%

16Lee County, IAIA32,30613+0%

17Linn County, IAIA232,02813+0%

18Wright County, IAIA12,80113+0%

19Emmet County, IAIA9,10712+0%

20Henry County, IAIA19,34911+0%

21Pottawattamie County, IAIA92,99611+0%

22Clarke County, IAIA9,57411+0%

23Tama County, IAIA16,79611+0%

24Cerro Gordo County, IAIA42,37210+0%

25Jefferson County, IAIA15,29110+0%

26Taylor County, IAIA5,83510+0%

27Allamakee County, IAIA14,23810+0%

28Wapello County, IAIA35,2109+0%

29Page County, IAIA14,8569+0%

30Clinton County, IAIA46,0029+0%

31Hardin County, IAIA16,4558+0%

32Sioux County, IAIA36,7748+0%

33Decatur County, IAIA7,6558+0%

34Washington County, IAIA22,6678+0%

35Hamilton County, IAIA14,9448+0%

36Jones County, IAIA21,2537+0%

37Winnebago County, IAIA10,2517+0%

38Hancock County, IAIA10,5287+0%

39Poweshiek County, IAIA18,3687+0%

40Dubuque County, IAIA99,3816+0%

41O'Brien County, IAIA14,2206+0%

42Fremont County, IAIA6,5226+0%

43Fayette County, IAIA19,0476+0%

44Mahaska County, IAIA21,8806+0%

45Jasper County, IAIA38,1536+0%

46Marion County, IAIA34,1926+0%

47Clay County, IAIA16,2025+0%

48Winneshiek County, IAIA19,7335+0%

49Osceola County, IAIA5,9805+0%

50Greene County, IAIA8,6585+0%

51Worth County, IAIA7,3385+0%

52Floyd County, IAIA14,9015+0%

53Plymouth County, IAIA25,6975+0%

54Mills County, IAIA14,7934+0%

55Calhoun County, IAIA9,5624+0%

56Warren County, IAIA57,3314+0%

57Cherokee County, IAIA11,3694+0%

58Appanoose County, IAIA12,0774+0%

59Montgomery County, IAIA10,0024+0%

60Bremer County, IAIA25,2964+0%

61Union County, IAIA11,8294+0%

62Iowa County, IAIA16,5044+0%

63Cedar County, IAIA18,3594+0%

64Sac County, IAIA9,5253+0%

65Boone County, IAIA26,7993+0%

66Guthrie County, IAIA10,7823+0%

67Pocahontas County, IAIA6,8193+0%

68Lucas County, IAIA8,8473+0%

69Buchanan County, IAIA20,8833+0%

70Kossuth County, IAIA14,3223+0%

71Humboldt County, IAIA9,4093+0%

72Palo Alto County, IAIA8,8993+0%

73Monroe County, IAIA7,4063+0%

74Van Buren County, IAIA7,1313+0%

75Davis County, IAIA9,2303+0%

76Shelby County, IAIA11,6893+0%

77Carroll County, IAIA20,3033+0%

78Cass County, IAIA12,9603+0%

79Madison County, IAIA17,2703+0%

80Adair County, IAIA7,4033+0%

81Clayton County, IAIA16,8452+0%

82Benton County, IAIA26,0042+0%

83Harrison County, IAIA14,6232+0%

84Dickinson County, IAIA18,0772+0%

85Grundy County, IAIA12,3612+0%

86Chickasaw County, IAIA11,6632+0%

87Wayne County, IAIA6,7382+0%

88Mitchell County, IAIA10,6502+0%

89Monona County, IAIA8,5392+0%

90Butler County, IAIA14,0492+0%

91Delaware County, IAIA17,6742+0%

92Howard County, IAIA9,4152+0%

93Keokuk County, IAIA9,7972+0%

94Ida County, IAIA6,7772+0%

95Audubon County, IAIA5,5092+0%

96Adams County, IAIA3,6172+0%

97Jackson County, IAIA19,2882+0%

98Lyon County, IAIA12,3541+0%

99Ringgold County, IAIA4,6421+0%

SHOWING 1–99 OF 99

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

UPDATED 2026-06-02 · DATA: US CENSUS BUREAU ACS 5-YEAR ESTIMATES