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 (2023 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.

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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 2000

01Palo Alto County, IAIA8,8990.6%–

02Dallas County, IAIA118,4570.4%–

03Cherokee County, IAIA11,3690.4%–

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%–

09Floyd County, IAIA14,9010.2%–

10Pocahontas County, IAIA6,8190.1%–

11Hamilton County, IAIA14,9440.1%–

12Lyon County, IAIA12,3540.1%–

13Mitchell County, IAIA10,6500.1%–

14Chickasaw County, IAIA11,6630.1%–

15Pottawattamie County, IAIA92,9960.1%–

16Woodbury County, IAIA106,6490.1%–

17Cerro Gordo County, IAIA42,3720.1%–

18Sioux County, IAIA36,7740.1%–

19Winnebago County, IAIA10,2510.1%–

20Black Hawk County, IAIA131,5320.1%–

21Story County, IAIA101,2910.1%–

22Lee County, IAIA32,3060.1%–

23Keokuk County, IAIA9,7970.1%–

24Bremer County, IAIA25,2960.1%–

25Worth County, IAIA7,3380.1%–

26Fayette County, IAIA19,0470.1%–

27Buchanan County, IAIA20,8830.1%–

28Cedar County, IAIA18,3590.1%–

29Appanoose County, IAIA12,0770.1%–

30Polk County, IAIA516,5460.1%–

31Webster County, IAIA36,8380.1%–

32Marshall County, IAIA39,8900.1%–

33Boone County, IAIA26,7990.0%–

34Poweshiek County, IAIA18,3680.0%–

35Linn County, IAIA232,0280.0%–

36Des Moines County, IAIA38,0770.0%–

37Mahaska County, IAIA21,8800.0%–

38Scott County, IAIA175,2590.0%–

39Iowa County, IAIA16,5040.0%–

40Warren County, IAIA57,3310.0%–

41Grundy County, IAIA12,3610.0%–

42Sac County, IAIA9,5250.0%–

43Buena Vista County, IAIA20,4490.0%–

44Tama County, IAIA16,7960.0%–

45Allamakee County, IAIA14,2380.0%–

46Guthrie County, IAIA10,7820.0%–

47Plymouth County, IAIA25,6970.0%–

48Clinton County, IAIA46,0020.0%–

49Carroll County, IAIA20,3030.0%–

50Wapello County, IAIA35,2100.0%–

51Muscatine County, IAIA41,8530.0%–

52Louisa County, IAIA10,4160.0%–

53Crawford County, IAIA16,2370.0%–

54Jasper County, IAIA38,1530.0%–

55Wright County, IAIA12,8010.0%–

56Butler County, IAIA14,0490.0%–

57Dubuque County, IAIA99,3810.0%–

58Monona County, IAIA8,5390.0%–

59Clayton County, IAIA16,8450.0%–

60Humboldt County, IAIA9,4090.0%–

61Benton County, IAIA26,0040.0%–

62Dickinson County, IAIA18,0770.0%–

SHOWING 1–62 OF 62

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UPDATED 2026-06-06 · DATA: US CENSUS BUREAU ACS 5-YEAR ESTIMATES