Counties in Iowa by asian population share

Buena Vista County had the highest asian population share of 99 counties in 2021, at 10.2%. Taylor County had the lowest, at 0%. The median was 0.6% and the figure for Iowa was 2.5%. Source: the U.S. Census Bureau.

Median0.699 counties
Iowa2.5History

Top 40 counties, 2021

CSVChart (SVG)

Buena Vista CountyBuena Vista County: 10.2 %10.2Story CountyStory County: 7.6 %7.6Jefferson CountyJefferson County: 6.2 %6.2Johnson CountyJohnson County: 6 %6Polk CountyPolk County: 4.9 %4.9Dallas CountyDallas County: 4.5 %4.5Marshall CountyMarshall County: 3.9 %3.9Louisa CountyLouisa County: 3.5 %3.5Scott CountyScott County: 2.9 %2.9Black Hawk CountyBlack Hawk County: 2.7 %2.7Hamilton CountyHamilton County: 2.7 %2.7Winnebago CountyWinnebago County: 2.7 %2.7Henry CountyHenry County: 2.5 %2.5Woodbury CountyWoodbury County: 2.4 %2.4Linn CountyLinn County: 2.3 %2.3Crawford CountyCrawford County: 2.3 %2.3Poweshiek CountyPoweshiek County: 2.2 %2.2Floyd CountyFloyd County: 1.5 %1.5Wapello CountyWapello County: 1.4 %1.4Webster CountyWebster County: 1.3 %1.3Mahaska CountyMahaska County: 1.2 %1.2Dubuque CountyDubuque County: 1.2 %1.2Cerro Gordo CountyCerro Gordo County: 1.2 %1.2Marion CountyMarion County: 1.2 %1.2Monroe CountyMonroe County: 1.2 %1.2Des Moines CountyDes Moines County: 1.1 %1.1Osceola CountyOsceola County: 1 %1Bremer CountyBremer County: 1 %1Madison CountyMadison County: 1 %1Page CountyPage County: 0.9 %0.9Adair CountyAdair County: 0.9 %0.9Humboldt CountyHumboldt County: 0.9 %0.9Dickinson CountyDickinson County: 0.9 %0.9Mitchell CountyMitchell County: 0.9 %0.9Butler CountyButler County: 0.8 %0.8Hardin CountyHardin County: 0.8 %0.8Winneshiek CountyWinneshiek County: 0.8 %0.8Decatur CountyDecatur County: 0.7 %0.7Warren CountyWarren County: 0.7 %0.7Clinton CountyClinton County: 0.7 %0.7
%. Source: Invokely calculation with data from U.S. Census Bureau. Retrieved 2026-10-09.

Full ranking

RankCounties2021 (%)
1Buena Vista County10.2
2Story County7.6
3Jefferson County6.2
4Johnson County6
5Polk County4.9
6Dallas County4.5
7Marshall County3.9
8Louisa County3.5
9Scott County2.9
10Black Hawk County2.7
10Hamilton County2.7
10Winnebago County2.7
13Henry County2.5
14Woodbury County2.4
15Linn County2.3
16Crawford County2.3
17Poweshiek County2.2
18Floyd County1.5
19Wapello County1.4
20Webster County1.3
21Mahaska County1.2
22Dubuque County1.2
23Cerro Gordo County1.2
24Marion County1.2
25Monroe County1.2
26Des Moines County1.1
27Osceola County1
28Bremer County1
28Madison County1
30Page County0.9
31Adair County0.9
32Humboldt County0.9
33Dickinson County0.9
34Mitchell County0.9
35Butler County0.8
36Hardin County0.8
37Winneshiek County0.8
38Decatur County0.7
38Warren County0.7
40Clinton County0.7
40Lee County0.7
42Union County0.7
43Cedar County0.7
44Pottawattamie County0.7
45Carroll County0.7
45Fayette County0.7
45O'Brien County0.7
48Jones County0.7
49Van Buren County0.6
50Jasper County0.6
51Muscatine County0.6
52Lyon County0.6
53Tama County0.6
54Davis County0.6
55Clay County0.6
56Pocahontas County0.6
57Kossuth County0.6
58Greene County0.5
59Sac County0.5
59Worth County0.5
61Allamakee County0.5
61Jackson County0.5
61Washington County0.5
64Palo Alto County0.5
65Sioux County0.5
66Cherokee County0.4
67Calhoun County0.4
67Plymouth County0.4
69Cass County0.4
69Grundy County0.4
71Lucas County0.3
72Clayton County0.3
72Mills County0.3
74Benton County0.3
74Delaware County0.3
74Hancock County0.3
77Appanoose County0.3
78Boone County0.3
79Montgomery County0.3
80Guthrie County0.2
81Howard County0.2
82Harrison County0.2
82Ringgold County0.2
84Keokuk County0.2
85Iowa County0.2
86Wright County0.2
87Ida County0.1
88Wayne County0.1
89Buchanan County0.1
90Audubon County0
90Emmet County0
92Chickasaw County0
92Clarke County0
94Adams County0
94Franklin County0
94Fremont County0
94Monona County0
94Shelby County0
94Taylor County0

Other periods

About this ranking

People who are not Hispanic or Latino and report Asian as their only race, as a percentage of the total population. United States: American Community Survey five-year estimate, where the period shown is the last year of the five-year span.

US federal statistics ask about Hispanic origin and race separately, and Hispanic or Latino people can be of any race. The shares for White, Black and Asian count people who are not Hispanic and report that race alone, so the published shares do not add up to 100 (people of two or more races and other races are not shown). Calculated from counts in ACS table B03002, which are stored as inputs. EU and Spanish statistics do not collect race.

Every value in the ranking comes from the same publisher and the same period, so the counties are compared on one definition. Equal values share a rank.

How to cite

U.S. Census Bureau. American Community Survey 5-year estimates, table B03002: Asian alone, not Hispanic or Latino, as a percentage of the total population, calculated with stored inputs. https://www2.census.gov/programs-surveys/acs/summary_file/2021/table-based-SF/data/5YRData/acsdt5y2021-b03002.dat. Retrieved 2026-10-09.

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Questions

Which county has the highest asian population share?

Buena Vista County, with 10.2% in 2021, according to the U.S. Census Bureau.

Which county has the lowest asian population share?

Taylor County, with 0% in 2021.

Where does this ranking come from?

Every value comes from one source and one period, so the places are comparable: U.S. Census Bureau, American Community Survey 5-year estimates, table B03002: Asian alone, not Hispanic or Latino, as a percentage of the total population, calculated with stored inputs. Retrieved 2026-10-09.

Asian population share: other rankings

Counties in Iowa: more rankings