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RANKING · 2000 CENSUS · 99 SHOWN OF 99

Highest Black population share, Iowa counties · 2000

Iowa counties ranked by the share of all residents who are Black or African American (2000 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.

Highest Black population share by state
All USAlaskaAlabamaArkansasArizonaCaliforniaColoradoFloridaGeorgiaIowaIdahoIllinoisIndianaKansasKentuckyLouisianaMassachusettsMarylandMaineMichiganMinnesotaMissouriMississippiMontanaNorth CarolinaNorth DakotaNebraskaNew HampshireNew JerseyNew MexicoNevadaNew YorkOhioOklahomaOregonPennsylvaniaSouth CarolinaSouth DakotaTennesseeTexasUtahVirginiaVermontWashingtonWisconsinWest VirginiaWyoming
RANKPLACESTATEPOPBLACKVS 1990
01Black Hawk County, IAIA131,5327.9%+1.0 pts
02Scott County, IAIA175,2596.0%+0.8 pts
03Polk County, IAIA516,5464.8%+0.3 pts
04Des Moines County, IAIA38,0773.5%+0.6 pts
05Webster County, IAIA36,8383.3%+1.7 pts
06Johnson County, IAIA160,0442.8%+0.7 pts
07Lee County, IAIA32,3062.8%−0.3 pts
08Linn County, IAIA232,0282.5%+0.6 pts
09Woodbury County, IAIA106,6491.9%−0.1 pts
10Clinton County, IAIA46,0021.9%+0.5 pts
11Story County, IAIA101,2911.8%+0.1 pts
12Jones County, IAIA21,2531.8%+0.2 pts
13Page County, IAIA14,8561.6%+1.3 pts
14Henry County, IAIA19,3491.5%+0.1 pts
15Wapello County, IAIA35,2100.9%+0.1 pts
16Decatur County, IAIA7,6550.9%+0.7 pts
17Marshall County, IAIA39,8900.9%+0.5 pts
18Jasper County, IAIA38,1530.8%+0.5 pts
19Dubuque County, IAIA99,3810.8%+0.5 pts
20Cerro Gordo County, IAIA42,3720.8%+0.0 pts
21Pottawattamie County, IAIA92,9960.8%+0.2 pts
22Crawford County, IAIA16,2370.7%+0.3 pts
23Dallas County, IAIA118,4570.7%+0.5 pts
24Calhoun County, IAIA9,5620.7%+0.4 pts
25Muscatine County, IAIA41,8530.6%+0.3 pts
26Jefferson County, IAIA15,2910.6%−0.0 pts
27Mahaska County, IAIA21,8800.6%+0.4 pts
28Hardin County, IAIA16,4550.6%−0.1 pts
29Poweshiek County, IAIA18,3680.5%+0.2 pts
30Winneshiek County, IAIA19,7330.5%+0.4 pts
31Fayette County, IAIA19,0470.5%+0.3 pts
32Bremer County, IAIA25,2960.5%+0.2 pts
33Appanoose County, IAIA12,0770.4%−0.1 pts
34Marion County, IAIA34,1920.4%+0.2 pts
35Cherokee County, IAIA11,3690.3%−0.0 pts
36O'Brien County, IAIA14,2200.3%+0.3 pts
37Boone County, IAIA26,7990.3%+0.1 pts
38Buena Vista County, IAIA20,4490.3%+0.0 pts
39Mills County, IAIA14,7930.3%+0.2 pts
40Washington County, IAIA22,6670.3%−0.1 pts
41Plymouth County, IAIA25,6970.3%+0.1 pts
42Worth County, IAIA7,3380.3%+0.2 pts
43Warren County, IAIA57,3310.3%+0.1 pts
44Buchanan County, IAIA20,8830.3%+0.0 pts
45Sac County, IAIA9,5250.3%+0.2 pts
46Tama County, IAIA16,7960.2%+0.1 pts
47Pocahontas County, IAIA6,8190.2%+0.2 pts
48Emmet County, IAIA9,1070.2%+0.2 pts
49Hamilton County, IAIA14,9440.2%+0.2 pts
50Union County, IAIA11,8290.2%+0.0 pts
51Floyd County, IAIA14,9010.2%+0.2 pts
52Louisa County, IAIA10,4160.2%−0.6 pts
53Cass County, IAIA12,9600.2%+0.2 pts
54Monroe County, IAIA7,4060.2%−0.7 pts
55Benton County, IAIA26,0040.2%+0.2 pts
56Cedar County, IAIA18,3590.2%+0.1 pts
57Sioux County, IAIA36,7740.2%+0.1 pts
58Winnebago County, IAIA10,2510.2%−0.0 pts
59Mitchell County, IAIA10,6500.2%+0.1 pts
60Clay County, IAIA16,2020.2%+0.1 pts
61Carroll County, IAIA20,3030.2%+0.1 pts
62Iowa County, IAIA16,5040.2%+0.1 pts
63Davis County, IAIA9,2300.2%+0.1 pts
64Allamakee County, IAIA14,2380.1%+0.1 pts
65Clayton County, IAIA16,8450.1%+0.1 pts
66Wright County, IAIA12,8010.1%+0.1 pts
67Audubon County, IAIA5,5090.1%+0.1 pts
68Lucas County, IAIA8,8470.1%+0.1 pts
69Greene County, IAIA8,6580.1%+0.1 pts
70Guthrie County, IAIA10,7820.1%+0.0 pts
71Dickinson County, IAIA18,0770.1%+0.1 pts
72Osceola County, IAIA5,9800.1%+0.1 pts
73Howard County, IAIA9,4150.1%−0.1 pts
74Kossuth County, IAIA14,3220.1%+0.1 pts
75Ringgold County, IAIA4,6420.1%+0.1 pts
76Clarke County, IAIA9,5740.1%+0.1 pts
77Ida County, IAIA6,7770.1%+0.1 pts
78Shelby County, IAIA11,6890.1%+0.0 pts
79Jackson County, IAIA19,2880.1%+0.1 pts
80Lyon County, IAIA12,3540.1%+0.1 pts
81Palo Alto County, IAIA8,8990.1%−0.0 pts
82Madison County, IAIA17,2700.1%+0.1 pts
83Butler County, IAIA14,0490.1%+0.0 pts
84Franklin County, IAIA9,8680.1%+0.1 pts
85Harrison County, IAIA14,6230.1%+0.1 pts
86Grundy County, IAIA12,3610.1%+0.0 pts
87Monona County, IAIA8,5390.1%+0.1 pts
88Montgomery County, IAIA10,0020.1%+0.1 pts
89Adair County, IAIA7,4030.1%+0.1 pts
90Keokuk County, IAIA9,7970.1%+0.1 pts
91Humboldt County, IAIA9,4090.1%−0.1 pts
92Delaware County, IAIA17,6740.1%+0.0 pts
93Van Buren County, IAIA7,1310.1%+0.0 pts
94Wayne County, IAIA6,7380.1%+0.1 pts
95Hancock County, IAIA10,5280.1%+0.1 pts
96Chickasaw County, IAIA11,6630.1%+0.1 pts
97Adams County, IAIA3,6170.0%+0.0 pts
98Fremont County, IAIA6,5220.0%+0.0 pts
99Taylor County, IAIA5,8350.0%+0.0 pts
SHOWING 1–99 OF 99

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