RANKING · 2020 CENSUS · 62 SHOWN OF 62

Largest Portuguese population, Iowa counties · 2020

Iowa counties ranked by the number of residents who are Portuguese ancestry, from the 2020 American Community Survey detailed-origin tables. Each list covers the full eligible universe; download the complete data as CSV. This list covers the 62 counties in Iowa that qualify, ranked against each other statewide. The median across all 62 is 12.

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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 2010

01Dallas County, IAIA118,457403+1393%

02Polk County, IAIA516,546297−22%

03Johnson County, IAIA160,044245+93%

04Linn County, IAIA232,028106+22%

05Black Hawk County, IAIA131,53296+200%

06Woodbury County, IAIA106,64986+65%

07Pottawattamie County, IAIA92,99684−24%

08Story County, IAIA101,29170−57%

09Scott County, IAIA175,25969+25%

10Palo Alto County, IAIA8,89951+467%

11Cherokee County, IAIA11,36940+300%

12Cerro Gordo County, IAIA42,37235−62%

13Sioux County, IAIA36,77427+8%

14Lee County, IAIA32,30624–

15Floyd County, IAIA14,90124+26%

16Union County, IAIA11,82921–

17Marshall County, IAIA39,89021+31%

18Webster County, IAIA36,83821–

19Des Moines County, IAIA38,07718+157%

20Wayne County, IAIA6,73818–

21Bremer County, IAIA25,29617−6%

22Warren County, IAIA57,33117+21%

23Davis County, IAIA9,23016–

24Hamilton County, IAIA14,94416–

25Buchanan County, IAIA20,88314−42%

26Taylor County, IAIA5,83513–

27Boone County, IAIA26,79913−75%

28Dubuque County, IAIA99,38113−32%

29Fayette County, IAIA19,04713−28%

30Lyon County, IAIA12,35412–

31Cedar County, IAIA18,35912−81%

32Clinton County, IAIA46,00212+9%

33Chickasaw County, IAIA11,66311−61%

34Mitchell County, IAIA10,65010–

35Mahaska County, IAIA21,88010−44%

36Poweshiek County, IAIA18,3689−10%

37Pocahontas County, IAIA6,8199+13%

38Appanoose County, IAIA12,0778−76%

39Muscatine County, IAIA41,8538−73%

40Wapello County, IAIA35,2108−88%

41Winnebago County, IAIA10,2518–

42Keokuk County, IAIA9,7977–

43Plymouth County, IAIA25,6977–

44Buena Vista County, IAIA20,4496−73%

45Iowa County, IAIA16,5046−40%

46Jasper County, IAIA38,1536−83%

47Tama County, IAIA16,7965–

48Worth County, IAIA7,3385–

49Carroll County, IAIA20,3035+25%

50Allamakee County, IAIA14,2384−56%

51Grundy County, IAIA12,3614–

52Sac County, IAIA9,5253–

53Crawford County, IAIA16,2373–

54Guthrie County, IAIA10,7823−63%

55Benton County, IAIA26,0042−86%

56Butler County, IAIA14,0492−83%

57Louisa County, IAIA10,4162–

58Wright County, IAIA12,8012−91%

59Clayton County, IAIA16,84520%

60Monona County, IAIA8,5391−67%

61Dickinson County, IAIA18,0771−97%

62Humboldt County, IAIA9,4091−50%

SHOWING 1–62 OF 62

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