RANKING · 2020 CENSUS · 62 SHOWN OF 62

Highest Portuguese population share, Iowa counties · 2020

Iowa counties ranked by the share of all residents who are Portuguese ancestry (2020 American Community Survey). A concentration measure: Portuguese residents as a percentage of total population. This list covers the 62 counties in Iowa that qualify, ranked against each other statewide. The median across all 62 is 0.1%.

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 SHAREVS 2010

01Palo Alto County, IAIA8,8990.6%+0.5 pts

02Dallas County, IAIA118,4570.4%+0.4 pts

03Cherokee County, IAIA11,3690.4%+0.3 pts

04Wayne County, IAIA6,7380.3%–

05Taylor County, IAIA5,8350.2%–

06Davis County, IAIA9,2300.2%–

07Union County, IAIA11,8290.2%–

08Johnson County, IAIA160,0440.2%+0.1 pts

09Floyd County, IAIA14,9010.2%0.0 pts

10Pocahontas County, IAIA6,8190.1%0.0 pts

11Hamilton County, IAIA14,9440.1%–

12Lyon County, IAIA12,3540.1%–

13Mitchell County, IAIA10,6500.1%–

14Chickasaw County, IAIA11,6630.1%−0.1 pts

15Pottawattamie County, IAIA92,9960.1%0.0 pts

16Woodbury County, IAIA106,6490.1%0.0 pts

17Cerro Gordo County, IAIA42,3720.1%−0.1 pts

18Sioux County, IAIA36,7740.1%0.0 pts

19Winnebago County, IAIA10,2510.1%–

20Black Hawk County, IAIA131,5320.1%0.0 pts

21Story County, IAIA101,2910.1%−0.1 pts

22Lee County, IAIA32,3060.1%–

23Keokuk County, IAIA9,7970.1%–

24Bremer County, IAIA25,2960.1%0.0 pts

25Worth County, IAIA7,3380.1%–

26Fayette County, IAIA19,0470.1%0.0 pts

27Buchanan County, IAIA20,8830.1%0.0 pts

28Cedar County, IAIA18,3590.1%−0.3 pts

29Appanoose County, IAIA12,0770.1%−0.2 pts

30Polk County, IAIA516,5460.1%0.0 pts

31Webster County, IAIA36,8380.1%–

32Marshall County, IAIA39,8900.1%0.0 pts

33Boone County, IAIA26,7990.0%−0.1 pts

34Poweshiek County, IAIA18,3680.0%0.0 pts

35Linn County, IAIA232,0280.0%0.0 pts

36Des Moines County, IAIA38,0770.0%0.0 pts

37Mahaska County, IAIA21,8800.0%0.0 pts

38Scott County, IAIA175,2590.0%0.0 pts

39Iowa County, IAIA16,5040.0%0.0 pts

40Warren County, IAIA57,3310.0%0.0 pts

41Grundy County, IAIA12,3610.0%–

42Sac County, IAIA9,5250.0%–

43Buena Vista County, IAIA20,4490.0%−0.1 pts

44Tama County, IAIA16,7960.0%–

45Allamakee County, IAIA14,2380.0%0.0 pts

46Guthrie County, IAIA10,7820.0%0.0 pts

47Plymouth County, IAIA25,6970.0%–

48Clinton County, IAIA46,0020.0%0.0 pts

49Carroll County, IAIA20,3030.0%0.0 pts

50Wapello County, IAIA35,2100.0%−0.2 pts

51Muscatine County, IAIA41,8530.0%−0.1 pts

52Louisa County, IAIA10,4160.0%–

53Crawford County, IAIA16,2370.0%–

54Jasper County, IAIA38,1530.0%−0.1 pts

55Wright County, IAIA12,8010.0%−0.2 pts

56Butler County, IAIA14,0490.0%−0.1 pts

57Dubuque County, IAIA99,3810.0%0.0 pts

58Monona County, IAIA8,5390.0%0.0 pts

59Clayton County, IAIA16,8450.0%0.0 pts

60Humboldt County, IAIA9,4090.0%0.0 pts

61Benton County, IAIA26,0040.0%0.0 pts

62Dickinson County, IAIA18,0770.0%−0.2 pts

SHOWING 1–62 OF 62

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