RANKING · 2010 CENSUS · 99 SHOWN OF 99

Highest Black population share, Iowa counties · 2010

Iowa counties ranked by the share of all residents who are Black or African American (2010 American Community Survey). A concentration measure: Black 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

RELATEDHighest Asian household income Highest Black household income Highest Hispanic household income Highest White (non-Hispanic) household income Largest White (non-Hispanic) population Highest White (non-Hispanic) population share

YEAR1990 2000 2010 2020 2024

RANKPLACESTATEPOPBLACKVS 2000

01Black Hawk County, IAIA131,5328.8%+11%

02Scott County, IAIA175,2596.9%+15%

03Polk County, IAIA516,5465.9%+23%

04Des Moines County, IAIA38,0775.0%+42%

05Johnson County, IAIA160,0444.7%+66%

06Linn County, IAIA232,0283.9%+52%

07Webster County, IAIA36,8383.8%+13%

08Lee County, IAIA32,3063.1%+11%

09Dubuque County, IAIA99,3812.6%+215%

10Clinton County, IAIA46,0022.6%+38%

11Buena Vista County, IAIA20,4492.5%+721%

12Story County, IAIA101,2912.4%+32%

13Woodbury County, IAIA106,6492.3%+20%

14Henry County, IAIA19,3492.2%+49%

15Page County, IAIA14,8562.2%+32%

16Jones County, IAIA21,2532.0%+11%

17Decatur County, IAIA7,6551.8%+94%

18Marshall County, IAIA39,8901.5%+75%

19Dallas County, IAIA118,4571.3%+95%

20Pottawattamie County, IAIA92,9961.3%+74%

21Muscatine County, IAIA41,8531.3%+96%

22Jasper County, IAIA38,1531.3%+52%

23Cerro Gordo County, IAIA42,3721.3%+63%

24Wapello County, IAIA35,2101.3%+37%

25Floyd County, IAIA14,9011.2%+460%

26Hardin County, IAIA16,4551.2%+101%

27Jefferson County, IAIA15,2911.2%+87%

28Crawford County, IAIA16,2371.1%+65%

29Poweshiek County, IAIA18,3681.1%+110%

30Mahaska County, IAIA21,8801.1%+79%

31Fayette County, IAIA19,0470.9%+86%

32Boone County, IAIA26,7990.8%+155%

33Bremer County, IAIA25,2960.8%+62%

34Allamakee County, IAIA14,2380.8%+432%

35Winnebago County, IAIA10,2510.7%+301%

36Union County, IAIA11,8290.7%+209%

37Washington County, IAIA22,6670.6%+130%

38Marion County, IAIA34,1920.6%+57%

39Winneshiek County, IAIA19,7330.6%+22%

40Emmet County, IAIA9,1070.6%+151%

41Cherokee County, IAIA11,3690.5%+69%

42Keokuk County, IAIA9,7970.5%+578%

43Palo Alto County, IAIA8,8990.5%+427%

44Warren County, IAIA57,3310.5%+77%

45Louisa County, IAIA10,4160.5%+114%

46Hancock County, IAIA10,5280.4%+662%

47Fremont County, IAIA6,5220.4%+1048%

48Appanoose County, IAIA12,0770.4%+1%

49Clarke County, IAIA9,5740.4%+274%

50Clay County, IAIA16,2020.4%+136%

51Humboldt County, IAIA9,4090.4%+489%

52Carroll County, IAIA20,3030.4%+141%

53O'Brien County, IAIA14,2200.4%+28%

54Mills County, IAIA14,7930.4%+34%

55Monona County, IAIA8,5390.4%+347%

56Benton County, IAIA26,0040.4%+81%

57Pocahontas County, IAIA6,8190.4%+47%

58Tama County, IAIA16,7960.3%+37%

59Ringgold County, IAIA4,6420.3%+202%

60Clayton County, IAIA16,8450.3%+147%

61Iowa County, IAIA16,5040.3%+103%

62Sioux County, IAIA36,7740.3%+71%

63Wright County, IAIA12,8010.3%+128%

64Sac County, IAIA9,5250.3%+19%

65Jackson County, IAIA19,2880.3%+212%

66Plymouth County, IAIA25,6970.3%+8%

67Madison County, IAIA17,2700.3%+235%

68Buchanan County, IAIA20,8830.3%+10%

69Cedar County, IAIA18,3590.3%+50%

70Kossuth County, IAIA14,3220.3%+150%

71Worth County, IAIA7,3380.3%+4%

72Monroe County, IAIA7,4060.3%+38%

73Wayne County, IAIA6,7380.3%+347%

74Howard County, IAIA9,4150.3%+136%

75Hamilton County, IAIA14,9440.3%+10%

76Shelby County, IAIA11,6890.3%+158%

77Delaware County, IAIA17,6740.3%+289%

78Ida County, IAIA6,7770.2%+135%

79Cass County, IAIA12,9600.2%+12%

80Greene County, IAIA8,6580.2%+88%

81Chickasaw County, IAIA11,6630.2%+336%

82Montgomery County, IAIA10,0020.2%+204%

83Osceola County, IAIA5,9800.2%+103%

84Grundy County, IAIA12,3610.2%+158%

85Adams County, IAIA3,6170.2%+345%

86Van Buren County, IAIA7,1310.2%+209%

87Calhoun County, IAIA9,5620.2%−71%

88Taylor County, IAIA5,8350.2%+561%

89Mitchell County, IAIA10,6500.2%+6%

90Franklin County, IAIA9,8680.2%+112%

91Dickinson County, IAIA18,0770.2%+43%

92Lucas County, IAIA8,8470.2%+32%

93Butler County, IAIA14,0490.2%+98%

94Harrison County, IAIA14,6230.2%+102%

95Audubon County, IAIA5,5090.1%+12%

96Guthrie County, IAIA10,7820.1%+18%

97Adair County, IAIA7,4030.1%+97%

98Davis County, IAIA9,2300.1%−47%

99Lyon County, IAIA12,3540.1%−17%

SHOWING 1–99 OF 99

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UPDATED 2026-07-15 · DATA: US CENSUS BUREAU DECENNIAL CENSUS