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RANKING · 2024 ACS · 99 SHOWN OF 99

Highest Black population share, Iowa counties

Iowa counties ranked by the share of all residents who are Black or African American (2024 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. The median across all 99 is 0.8%. Biggest climber in the top 100 since 2020: Montgomery County, IA, up 64 places to #25.

Highest Black population share by state
All USAlaskaAlabamaArkansasArizonaCaliforniaColoradoFloridaGeorgiaIowaIdahoIllinoisIndianaKansasKentuckyLouisianaMassachusettsMarylandMaineMichiganMinnesotaMissouriMississippiMontanaNorth CarolinaNorth DakotaNebraskaNew HampshireNew JerseyNew MexicoNevadaNew YorkOhioOklahomaOregonPennsylvaniaSouth CarolinaSouth DakotaTennesseeTexasUtahVirginiaVermontWashingtonWisconsinWest VirginiaWyoming
RANKPLACESTATEPOPBLACKVS 2000
01Black Hawk County, IAIA131,5329.1%+1.2 pts
02Johnson County, IAIA160,0447.6%+4.8 pts
03▲1Polk County, IAIA516,5467.3%+2.5 pts
04▼1Scott County, IAIA175,2597.1%+1.1 pts
05Linn County, IAIA232,0285.9%+3.3 pts
06▲2Woodbury County, IAIA106,6494.9%+2.9 pts
07▼1Des Moines County, IAIA38,0774.7%+1.2 pts
08▲5Buena Vista County, IAIA20,4493.3%+3.0 pts
09▼2Webster County, IAIA36,8383.3%−0.1 pts
10▲2Clinton County, IAIA46,0023.1%+1.2 pts
11▼2Wapello County, IAIA35,2103.0%+2.1 pts
12▲3Dallas County, IAIA118,4573.0%+2.3 pts
13▼3Dubuque County, IAIA99,3812.9%+2.1 pts
14▼3Story County, IAIA101,2912.7%+0.9 pts
15▲4Henry County, IAIA19,3492.5%+1.1 pts
16▲6Jones County, IAIA21,2532.5%+0.7 pts
17Jefferson County, IAIA15,2912.4%+1.8 pts
18▼4Lee County, IAIA32,3062.4%−0.4 pts
19▲12Plymouth County, IAIA25,6972.4%+2.1 pts
20▼2Muscatine County, IAIA41,8532.2%+1.6 pts
21▲5Winnebago County, IAIA10,2512.0%+1.8 pts
22▲1Cerro Gordo County, IAIA42,3721.9%+1.1 pts
23▲1Pottawattamie County, IAIA92,9961.8%+1.1 pts
24▲12Allamakee County, IAIA14,2381.8%+1.7 pts
25▲64Montgomery County, IAIA10,0021.8%+1.7 pts
26▼6Page County, IAIA14,8561.7%+0.1 pts
27▲7O'Brien County, IAIA14,2201.7%+1.4 pts
28▲33Palo Alto County, IAIA8,8991.6%+1.5 pts
29▲1Calhoun County, IAIA9,5621.6%+0.9 pts
30▲9Emmet County, IAIA9,1071.6%+1.4 pts
31▼6Marshall County, IAIA39,8901.6%+0.7 pts
32▼5Jasper County, IAIA38,1531.5%+0.7 pts
33▲25Adair County, IAIA7,4031.4%+1.4 pts
34▼18Floyd County, IAIA14,9011.4%+1.1 pts
35▼3Decatur County, IAIA7,6551.3%+0.4 pts
36▲54Monroe County, IAIA7,4061.2%+1.0 pts
37▼2Boone County, IAIA26,7991.2%+0.8 pts
38▼10Mahaska County, IAIA21,8801.1%+0.5 pts
39▼1Bremer County, IAIA25,2961.1%+0.6 pts
40▲4Hardin County, IAIA16,4551.1%+0.5 pts
41▲6Washington County, IAIA22,6671.0%+0.8 pts
42▲8Jackson County, IAIA19,2881.0%+0.9 pts
43▲6Cherokee County, IAIA11,3691.0%+0.7 pts
44▲16Hamilton County, IAIA14,9441.0%+0.7 pts
45▼16Poweshiek County, IAIA18,3680.9%+0.4 pts
46▲2Tama County, IAIA16,7960.9%+0.7 pts
47▲44Cass County, IAIA12,9600.9%+0.7 pts
48▲5Louisa County, IAIA10,4160.9%+0.7 pts
49▼28Crawford County, IAIA16,2370.9%+0.2 pts
50▲38Howard County, IAIA9,4150.8%+0.7 pts
51▲5Appanoose County, IAIA12,0770.8%+0.4 pts
52▼6Worth County, IAIA7,3380.8%+0.5 pts
53▼16Fayette County, IAIA19,0470.8%+0.3 pts
54▼14Union County, IAIA11,8290.8%+0.5 pts
55▲30Madison County, IAIA17,2700.7%+0.7 pts
56▲10Kossuth County, IAIA14,3220.7%+0.6 pts
57▲25Franklin County, IAIA9,8680.7%+0.6 pts
58▼17Pocahontas County, IAIA6,8190.7%+0.4 pts
59▼16Warren County, IAIA57,3310.7%+0.4 pts
60▼18Clayton County, IAIA16,8450.6%+0.5 pts
61▲18Buchanan County, IAIA20,8830.6%+0.3 pts
62▲3Sioux County, IAIA36,7740.6%+0.4 pts
63▲15Grundy County, IAIA12,3610.6%+0.5 pts
64▲22Guthrie County, IAIA10,7820.6%+0.4 pts
65▼10Chickasaw County, IAIA11,6630.5%+0.5 pts
66▲18Audubon County, IAIA5,5090.5%+0.4 pts
67▲2Osceola County, IAIA5,9800.5%+0.4 pts
68▼35Carroll County, IAIA20,3030.5%+0.3 pts
69▼2Sac County, IAIA9,5250.5%+0.2 pts
70▼19Hancock County, IAIA10,5280.4%+0.4 pts
71▼9Wright County, IAIA12,8010.4%+0.3 pts
72▲5Van Buren County, IAIA7,1310.4%+0.4 pts
73▲1Cedar County, IAIA18,3590.4%+0.2 pts
74▼29Marion County, IAIA34,1920.4%0.0 pts
75▼16Winneshiek County, IAIA19,7330.4%−0.1 pts
76▼12Mills County, IAIA14,7930.4%+0.1 pts
77▼5Benton County, IAIA26,0040.4%+0.2 pts
78▲20Ringgold County, IAIA4,6420.4%+0.3 pts
79▲4Lyon County, IAIA12,3540.4%+0.3 pts
80▲16Fremont County, IAIA6,5220.4%+0.3 pts
81▼5Mitchell County, IAIA10,6500.3%+0.2 pts
82▼19Humboldt County, IAIA9,4090.3%+0.3 pts
83▼29Iowa County, IAIA16,5040.3%+0.2 pts
84▼14Shelby County, IAIA11,6890.3%+0.2 pts
85▼10Ida County, IAIA6,7770.3%+0.2 pts
86▼6Adams County, IAIA3,6170.3%+0.3 pts
87▲5Lucas County, IAIA8,8470.3%+0.2 pts
88▼31Clay County, IAIA16,2020.3%+0.1 pts
89▼21Keokuk County, IAIA9,7970.3%+0.2 pts
90▼9Monona County, IAIA8,5390.2%+0.2 pts
91▲4Wayne County, IAIA6,7380.2%+0.1 pts
92▲7Taylor County, IAIA5,8350.2%+0.1 pts
93▲1Butler County, IAIA14,0490.2%+0.1 pts
94▼1Harrison County, IAIA14,6230.1%0.0 pts
95▼8Greene County, IAIA8,6580.1%0.0 pts
96▼44Delaware County, IAIA17,6740.1%0.0 pts
97▼26Clarke County, IAIA9,5740.1%−0.1 pts
98▼25Dickinson County, IAIA18,0770.0%−0.1 pts
99▼2Davis County, IAIA9,2300.0%−0.2 pts
SHOWING 1–99 OF 99

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