RANKING · 2024 ACS · 99 SHOWN OF 99

Most segregated, Iowa counties

Name: Most segregated, Iowa counties, 2024
Creator: CensusEasy
License: https://creativecommons.org/licenses/by/4.0/

Iowa counties ranked by the CensusEasy Segregation Score, the White vs non-White index of dissimilarity across census tracts (2024 ACS). Higher means residents are more sorted into separate neighborhoods. This list covers the 99 counties in Iowa that qualify, ranked against each other statewide. The median across all 99 is 22. Biggest climber in the top 100 since 2020: O'Brien County, IA, up 80 places to #7.

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IowaAll states All rankings

SAME RANKING BYMetros

YEAR2020 2024

RANKPLACESTATEPOPSEGREGATION SCOREVS 2020

01Allamakee County, IAIA14,23857−3%

02▲1Buena Vista County, IAIA20,44945−6%

03▼1Crawford County, IAIA16,23742−16%

04Black Hawk County, IAIA131,53242−4%

05▲9Marshall County, IAIA39,89042+12%

06▼1Tama County, IAIA16,79637−14%

07▲80O'Brien County, IAIA14,22037+241%

08▲1Clarke County, IAIA9,57436−11%

09▲3Louisa County, IAIA10,41636−5%

10▲12Jasper County, IAIA38,15335+2%

11▼3Woodbury County, IAIA106,64934−18%

12▲7Wapello County, IAIA35,21034−4%

13▲72Appanoose County, IAIA12,07734+184%

14▲2Polk County, IAIA516,54633−9%

15▲20Franklin County, IAIA9,86833+17%

16▲29Muscatine County, IAIA41,85331+22%

17▼4Taylor County, IAIA5,83531−18%

18▲11Linn County, IAIA232,02831−4%

19▲4Des Moines County, IAIA38,07730−13%

20▲60Dickinson County, IAIA18,07729+101%

21▼14Sac County, IAIA9,52529−34%

22▲15Jefferson County, IAIA15,291280%

23▲48Palo Alto County, IAIA8,89928+57%

24▲26Lucas County, IAIA8,84728+19%

25▲2Marion County, IAIA34,19228−16%

26▲8Wright County, IAIA12,80128−5%

27▼10Henry County, IAIA19,34928−23%

28▲56Kossuth County, IAIA14,32226+101%

29▲10Dubuque County, IAIA99,38126−5%

30▲34Hancock County, IAIA10,52826+33%

31▲11Johnson County, IAIA160,04426−3%

32▼17Hamilton County, IAIA14,94426−29%

33▲40Plymouth County, IAIA25,69726+57%

34▲7Cass County, IAIA12,96026−6%

35▲8Page County, IAIA14,85626−2%

36▼12Story County, IAIA101,29125−26%

37▼9Webster County, IAIA36,83825−24%

38▲31Adair County, IAIA7,40325+36%

39▼7Washington County, IAIA22,66724−19%

40▼2Scott County, IAIA175,25924−12%

41▲33Madison County, IAIA17,27024+53%

42▼16Dallas County, IAIA118,45724−29%

43▲48Mills County, IAIA14,79324+230%

44▲22Calhoun County, IAIA9,56223+21%

45▼15Pottawattamie County, IAIA92,99623−24%

46▼26Clayton County, IAIA16,84523−33%

47▲36Worth County, IAIA7,33823+76%

48▲24Chickasaw County, IAIA11,66323+33%

49▲39Greene County, IAIA8,65822+120%

50▲29Montgomery County, IAIA10,00222+50%

51▼30Bremer County, IAIA25,29622−36%

52▼5Cedar County, IAIA18,35922−15%

53▼35Poweshiek County, IAIA18,36822−40%

54▲8Clay County, IAIA16,20221+3%

55▼30Lee County, IAIA32,30621−38%

56▼2Cerro Gordo County, IAIA42,37221−5%

57▼11Cherokee County, IAIA11,36921−18%

58▼18Jackson County, IAIA19,28821−24%

59▼53Floyd County, IAIA14,90120−53%

60▼11Sioux County, IAIA36,77420−17%

61▼28Clinton County, IAIA46,00220−32%

62▼26Monona County, IAIA8,53920−31%

63Mahaska County, IAIA21,88019−3%

64▼12Hardin County, IAIA16,45519−17%

65▼7Decatur County, IAIA7,65519−10%

66▲11Fayette County, IAIA19,04719+25%

67▲28Delaware County, IAIA17,67418+329%

68▼58Jones County, IAIA21,25318−54%

69▼1Adams County, IAIA3,61718−4%

70▼9Winnebago County, IAIA10,25118−13%

71▼15Winneshiek County, IAIA19,73317−21%

72▲21Mitchell County, IAIA10,65017+191%

73▲17Davis County, IAIA9,23016+120%

74▼23Union County, IAIA11,82916−31%

75▼15Warren County, IAIA57,33115−27%

76▼19Boone County, IAIA26,79915−31%

77▼1Keokuk County, IAIA9,79715−3%

78▲8Carroll County, IAIA20,30314+28%

79▲2Benton County, IAIA26,00413−7%

80▼15Emmet County, IAIA9,10713−34%

81▼26Grundy County, IAIA12,36113−43%

82▲17Fremont County, IAIA6,52212+527%

83▼5Butler County, IAIA14,04912−18%

84▼14Iowa County, IAIA16,50412−34%

85▼54Howard County, IAIA9,41511−62%

86▼38Harrison County, IAIA14,62311−55%

87▲5Pocahontas County, IAIA6,81911+60%

88▼6Monroe County, IAIA7,40611−23%

89▲7Lyon County, IAIA12,35411+256%

90▼1Wayne County, IAIA6,73810+21%

91▼32Humboldt County, IAIA9,40910−55%

92▲6Guthrie County, IAIA10,7829+246%

93▼82Audubon County, IAIA5,5099−77%

94▲3Osceola County, IAIA5,9808+187%

95▼42Buchanan County, IAIA20,8838−64%

96▼52Ida County, IAIA6,7777−74%

97▼30Shelby County, IAIA11,6896−67%

98▼4Van Buren County, IAIA7,1316+15%

99▼24Ringgold County, IAIA4,6424−75%

SHOWING 1–99 OF 99

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

UPDATED 2026-09-11 · DATA: US CENSUS BUREAU ACS 5-YEAR ESTIMATES