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RANKING · 2024 ACS · 66 SHOWN OF 66

Largest Korean population, Iowa counties

Iowa counties ranked by the number of residents who are Korean, from the 2024 American Community Survey detailed-origin tables. Each list covers the full eligible universe; download the complete data as CSV. This list covers the 66 counties in Iowa that qualify, ranked against each other statewide. The median across all 66 is 22. Biggest climber in the top 100 since 2020: Union County, IA, up 35 places to #14.

Korean Americans: full group profile →
SAME RANKING BYCitiesStatesMetros
Largest Korean population by state
RANKPLACESTATEPOPKOREAN POPULATIONVS 2020
01▲2Polk County, IAIA516,5461,214+80%
02Story County, IAIA101,2911,059+39%
03▼2Johnson County, IAIA160,0441,053−24%
04▲1Scott County, IAIA175,259517+28%
05▲1Black Hawk County, IAIA131,5323980%
06▼2Linn County, IAIA232,028350−18%
07Dallas County, IAIA118,457271−22%
08Webster County, IAIA36,838180+18%
09▲3Poweshiek County, IAIA18,368135+44%
10▲1Woodbury County, IAIA106,649100−15%
11▲20Pottawattamie County, IAIA92,99694+224%
12▼3Marion County, IAIA34,19288−32%
13▲11Clay County, IAIA16,20273+49%
14▲35Union County, IAIA11,82968+656%
15▲31Clinton County, IAIA46,00268+518%
16Dubuque County, IAIA99,38160−19%
17Shelby County, IAIA11,68956–
18▲1Warren County, IAIA57,33146−32%
19▲6Humboldt County, IAIA9,40944−2%
20▲17Kossuth County, IAIA14,32242+121%
21▲14Bremer County, IAIA25,29640+90%
22▲12Decatur County, IAIA7,65539+63%
23▲7Buena Vista County, IAIA20,44936+3%
24▲26Butler County, IAIA14,04936+300%
25▲28Benton County, IAIA26,00433+313%
26▼16Cerro Gordo County, IAIA42,37230−75%
27▲35Harrison County, IAIA14,62330+900%
28▲12Appanoose County, IAIA12,07727+69%
29Guthrie County, IAIA10,78223–
30▲13Madison County, IAIA17,27023+64%
31▲14Marshall County, IAIA39,89023+92%
32▼10Carroll County, IAIA20,30322−57%
33▲33Sioux County, IAIA36,77422+633%
34▼11Cedar County, IAIA18,35921−59%
35▼15Muscatine County, IAIA41,85320−70%
36▲5Mitchell County, IAIA10,65019+27%
37▲1Des Moines County, IAIA38,077180%
38▲17Greene County, IAIA8,65818+260%
39▲25Mahaska County, IAIA21,88018+500%
40▼8Sac County, IAIA9,52516−45%
41Ida County, IAIA6,77715–
42▲12Washington County, IAIA22,66715+150%
43▲26Dickinson County, IAIA18,07714+1300%
44▼8Hardin County, IAIA16,45514−30%
45Tama County, IAIA16,79614–
46▼33Lee County, IAIA32,30613−85%
47▼18Floyd County, IAIA14,90112−69%
48Wright County, IAIA12,80111–
49Howard County, IAIA9,41510–
50▲1Mills County, IAIA14,7938−11%
51▲12Lyon County, IAIA12,3547+133%
52▲19O'Brien County, IAIA14,2207+600%
53▲8Grundy County, IAIA12,3616+100%
54Emmet County, IAIA9,1075–
55▲2Fayette County, IAIA19,04750%
56Franklin County, IAIA9,8685–
57Osceola County, IAIA5,9805–
58▼10Page County, IAIA14,8565−50%
59▲1Winnebago County, IAIA10,2515+25%
60▲7Audubon County, IAIA5,5093+50%
61▼3Calhoun County, IAIA9,5622−50%
62▼15Davis County, IAIA9,2301−91%
63▼42Henry County, IAIA19,3491−98%
64▼22Jasper County, IAIA38,1531−93%
66▼52Winneshiek County, IAIA19,7331−99%
SHOWING 1–66 OF 66

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