Counties in Iowa by asian population share

Buena Vista County had the highest asian population share of 99 counties in 2023, at 10%. Union County had the lowest, at 0%. The median was 0.6% and the figure for Iowa was 2.4%. Source: the U.S. Census Bureau.

Median0.699 counties
Iowa2.4History

Top 40 counties, 2023

CSVChart (SVG)

Buena Vista CountyBuena Vista County: 10 %10Story CountyStory County: 6.8 %6.8Johnson CountyJohnson County: 5.8 %5.8Polk CountyPolk County: 4.9 %4.9Dallas CountyDallas County: 4.6 %4.6Jefferson CountyJefferson County: 4.6 %4.6Marshall CountyMarshall County: 4.3 %4.3Winnebago CountyWinnebago County: 3.2 %3.2Scott CountyScott County: 2.9 %2.9Woodbury CountyWoodbury County: 2.5 %2.5Black Hawk CountyBlack Hawk County: 2.4 %2.4Linn CountyLinn County: 2.3 %2.3Crawford CountyCrawford County: 2.2 %2.2Poweshiek CountyPoweshiek County: 2.1 %2.1Hamilton CountyHamilton County: 1.9 %1.9Louisa CountyLouisa County: 1.9 %1.9Floyd CountyFloyd County: 1.6 %1.6Wapello CountyWapello County: 1.4 %1.4Marion CountyMarion County: 1.3 %1.3Cerro Gordo CountyCerro Gordo County: 1.2 %1.2Dubuque CountyDubuque County: 1.2 %1.2Butler CountyButler County: 1.2 %1.2Mahaska CountyMahaska County: 1.2 %1.2Webster CountyWebster County: 1.2 %1.2Des Moines CountyDes Moines County: 1.1 %1.1Bremer CountyBremer County: 1 %1Henry CountyHenry County: 1 %1Osceola CountyOsceola County: 1 %1Pottawattamie CountyPottawattamie County: 0.9 %0.9Hardin CountyHardin County: 0.9 %0.9Monroe CountyMonroe County: 0.8 %0.8Lucas CountyLucas County: 0.8 %0.8Humboldt CountyHumboldt County: 0.8 %0.8Clinton CountyClinton County: 0.8 %0.8Dickinson CountyDickinson County: 0.7 %0.7Warren CountyWarren County: 0.7 %0.7Fayette CountyFayette County: 0.7 %0.7Sac CountySac County: 0.7 %0.7Page CountyPage County: 0.7 %0.7Muscatine CountyMuscatine County: 0.6 %0.6
%. Source: Invokely calculation with data from U.S. Census Bureau. Retrieved 2026-10-09.

Full ranking

RankCounties2023 (%)Change on 2022
1Buena Vista County10-0.2 pts
2Story County6.8-0.5 pts
3Johnson County5.8-0.3 pts
4Polk County4.90 pts
5Dallas County4.6+0.1 pts
6Jefferson County4.6-1.3 pts
7Marshall County4.3+0.1 pts
8Winnebago County3.2+0.1 pts
9Scott County2.9+0.1 pts
10Woodbury County2.5+0.2 pts
11Black Hawk County2.4-0.2 pts
12Linn County2.3-0.1 pts
13Crawford County2.2-0.1 pts
14Poweshiek County2.1-0.1 pts
15Hamilton County1.9+0.1 pts
16Louisa County1.9-0.1 pts
17Floyd County1.60 pts
18Wapello County1.4-0 pts
19Marion County1.3+0.3 pts
20Cerro Gordo County1.2-0 pts
21Dubuque County1.2-0 pts
22Butler County1.2+0.1 pts
22Mahaska County1.2+0.1 pts
24Webster County1.20 pts
25Des Moines County1.1-0 pts
26Bremer County1+0.1 pts
27Henry County1-1.3 pts
28Osceola County1-0.4 pts
29Pottawattamie County0.90 pts
30Hardin County0.9+0.1 pts
31Monroe County0.80 pts
32Lucas County0.8+0.4 pts
33Humboldt County0.8+0.1 pts
34Clinton County0.8-0.2 pts
35Dickinson County0.7-0.3 pts
36Warren County0.7-0 pts
37Fayette County0.7+0.2 pts
38Sac County0.7+0.1 pts
39Page County0.7-0.2 pts
40Muscatine County0.6-0 pts
41Palo Alto County0.6+0.1 pts
41Tama County0.60 pts
43Hancock County0.6+0.2 pts
43Wright County0.6+0.4 pts
45Jones County0.6-0 pts
45Mitchell County0.6-0.2 pts
45O'Brien County0.6-0.1 pts
48Sioux County0.6+0.2 pts
49Carroll County0.6+0.1 pts
49Cherokee County0.6+0.6 pts
49Clarke County0.60 pts
49Greene County0.6-0.2 pts
49Winneshiek County0.6-0.1 pts
54Montgomery County0.6+0.3 pts
55Jasper County0.6-0 pts
56Allamakee County0.5-0.1 pts
56Cedar County0.5-0.1 pts
58Plymouth County0.50 pts
59Decatur County0.5-0.1 pts
60Washington County0.5+0.1 pts
61Grundy County0.50 pts
61Worth County0.5+0.2 pts
63Lyon County0.5+0.1 pts
64Lee County0.40 pts
65Appanoose County0.4+0.1 pts
65Jackson County0.4-0 pts
65Kossuth County0.4-0.1 pts
65Mills County0.4-0.3 pts
65Wayne County0.4+0.4 pts
70Ida County0.40 pts
71Guthrie County0.4+0.1 pts
72Howard County0.40 pts
73Adair County0.4+0.2 pts
74Madison County0.4-0 pts
75Cass County0.3-0 pts
76Clay County0.3-0 pts
77Clayton County0.3-0 pts
77Harrison County0.30 pts
79Buchanan County0.2+0.1 pts
79Calhoun County0.2-0.1 pts
79Iowa County0.20 pts
82Emmet County0.2-0 pts
83Benton County0.2-0 pts
83Fremont County0.2+0.2 pts
85Franklin County0.2+0.2 pts
86Boone County0.20 pts
86Van Buren County0.2-0.5 pts
88Delaware County0.1-0.1 pts
89Audubon County00 pts
89Pocahontas County0-0.6 pts
91Chickasaw County00 pts
92Adams County00 pts
92Davis County0-0.5 pts
92Keokuk County0-0.1 pts
92Monona County00 pts
92Ringgold County0-0.1 pts
92Shelby County00 pts
92Taylor County00 pts
92Union County0-0.6 pts

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/2023/table-based-SF/data/5YRData/acsdt5y2023-b03002.dat. Retrieved 2026-10-09.

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Questions

Which county has the highest asian population share?

Buena Vista County, with 10% in 2023, according to the U.S. Census Bureau.

Which county has the lowest asian population share?

Union County, with 0% in 2023.

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