RANKING · 2010 CENSUS · 61 SHOWN OF 61

Largest Portuguese population, Iowa counties · 2010

Iowa counties ranked by the number of residents who are Portuguese ancestry, from the 2010 American Community Survey detailed-origin tables. Each list covers the full eligible universe; download the complete data as CSV. This list covers the 61 counties in Iowa that qualify, ranked against each other statewide. The median across all 61 is 18.

Portuguese Americans: full group profile →

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SAME RANKING BYCities States Metros

RELATEDLargest American population Highest American population share Largest Arab population Highest Arab population share Largest Egyptian population Highest Egyptian population share

YEAR2010 2020 2024

RANKPLACESTATEPOPPORTUGUESE POPULATIONVS –

01Polk County, IAIA516,546379–

02Story County, IAIA101,291163–

03Johnson County, IAIA160,044127–

04Pottawattamie County, IAIA92,996111–

05Cerro Gordo County, IAIA42,37292–

06Linn County, IAIA232,02887–

07Marion County, IAIA34,19275–

08Wapello County, IAIA35,21069–

09Cedar County, IAIA18,35964–

10Scott County, IAIA175,25955–

11Woodbury County, IAIA106,64952–

12Boone County, IAIA26,79951–

13Mills County, IAIA14,79344–

14Jefferson County, IAIA15,29140–

15Jasper County, IAIA38,15335–

16Appanoose County, IAIA12,07734–

17Hancock County, IAIA10,52834–

18Jones County, IAIA21,25334–

19Black Hawk County, IAIA131,53232–

20Dickinson County, IAIA18,07731–

21Muscatine County, IAIA41,85330–

22Chickasaw County, IAIA11,66328–

23Dallas County, IAIA118,45727–

24Sioux County, IAIA36,77425–

25Buchanan County, IAIA20,88324–

26Wright County, IAIA12,80123–

27Buena Vista County, IAIA20,44922–

28Dubuque County, IAIA99,38119–

29Floyd County, IAIA14,90119–

30Bremer County, IAIA25,29618–

31Fayette County, IAIA19,04718–

32Mahaska County, IAIA21,88018–

33Marshall County, IAIA39,89016–

34Benton County, IAIA26,00414–

35Warren County, IAIA57,33114–

36Greene County, IAIA8,65813–

37Harrison County, IAIA14,62313–

38Butler County, IAIA14,04912–

39Clay County, IAIA16,20212–

40Delaware County, IAIA17,67412–

41Clinton County, IAIA46,00211–

42Cherokee County, IAIA11,36910–

43Iowa County, IAIA16,50410–

44Poweshiek County, IAIA18,36810–

45Allamakee County, IAIA14,2389–

46Palo Alto County, IAIA8,8999–

47Emmet County, IAIA9,1078–

48Guthrie County, IAIA10,7828–

49Pocahontas County, IAIA6,8198–

50Des Moines County, IAIA38,0777–

51Hardin County, IAIA16,4557–

52Page County, IAIA14,8567–

53Ida County, IAIA6,7776–

54Kossuth County, IAIA14,3225–

55Shelby County, IAIA11,6895–

56Carroll County, IAIA20,3034–

57Monona County, IAIA8,5393–

58Clayton County, IAIA16,8452–

59Henry County, IAIA19,3492–

60Humboldt County, IAIA9,4092–

61Calhoun County, IAIA9,5621–

SHOWING 1–61 OF 61

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UPDATED 2026-09-11 · DATA: US CENSUS BUREAU DECENNIAL CENSUS