RANKING · 2024 ACS · 59 SHOWN OF 59

Highest Portuguese population share, Iowa counties

Iowa counties ranked by the share of all residents who are Portuguese ancestry (2024 American Community Survey). A concentration measure: Portuguese residents as a percentage of total population. This list covers the 59 counties in Iowa that qualify, ranked against each other statewide. The median across all 59 is 0.1%. Biggest climber in the top 100 since 2020: Butler County, IA, up 42 places to #14.

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IowaAll states All rankings

SAME RANKING BYCities States Metros

YEAR2010 2020 2024

RANKPLACESTATEPOPPORTUGUESE SHAREVS 2010

01Clay County, IAIA16,2020.5%+0.5 pts

02▼1Palo Alto County, IAIA8,8990.4%+0.3 pts

03Cass County, IAIA12,9600.4%–

04Wayne County, IAIA6,7380.3%–

05Emmet County, IAIA9,1070.3%+0.2 pts

06▼4Dallas County, IAIA118,4570.2%+0.2 pts

07▲27Poweshiek County, IAIA18,3680.2%+0.2 pts

08▲6Chickasaw County, IAIA11,6630.2%0.0 pts

09▼3Davis County, IAIA9,2300.2%–

10▲23Boone County, IAIA26,7990.1%−0.1 pts

11▼1Pocahontas County, IAIA6,8190.1%0.0 pts

12▼1Hamilton County, IAIA14,9440.1%–

13▲19Marshall County, IAIA39,8900.1%+0.1 pts

14▲42Butler County, IAIA14,0490.1%0.0 pts

15Henry County, IAIA19,3490.1%+0.1 pts

16Jones County, IAIA21,2530.1%−0.1 pts

17▼2Pottawattamie County, IAIA92,9960.1%0.0 pts

18▲23Grundy County, IAIA12,3610.1%–

19Delaware County, IAIA17,6740.1%0.0 pts

20▲31Muscatine County, IAIA41,8530.1%0.0 pts

21Jefferson County, IAIA15,2910.1%−0.2 pts

22▲18Warren County, IAIA57,3310.1%+0.1 pts

23Hardin County, IAIA16,4550.1%0.0 pts

24Lucas County, IAIA8,8470.1%–

25Fremont County, IAIA6,5220.1%–

26▲21Plymouth County, IAIA25,6970.1%–

27▼1Fayette County, IAIA19,0470.1%0.0 pts

28Marion County, IAIA34,1920.1%−0.2 pts

29▲6Linn County, IAIA232,0280.1%0.0 pts

30▲12Sac County, IAIA9,5250.1%–

31▲6Mahaska County, IAIA21,8800.0%0.0 pts

32▼13Winnebago County, IAIA10,2510.0%–

33▼25Johnson County, IAIA160,0440.0%−0.1 pts

34▲2Des Moines County, IAIA38,0770.0%0.0 pts

35▲18Crawford County, IAIA16,2370.0%–

36▼15Story County, IAIA101,2910.0%−0.1 pts

37▼30Union County, IAIA11,8290.0%–

38Montgomery County, IAIA10,0020.0%–

39▼22Cerro Gordo County, IAIA42,3720.0%−0.2 pts

40▼10Polk County, IAIA516,5460.0%−0.1 pts

41Greene County, IAIA8,6580.0%−0.1 pts

42▼39Cherokee County, IAIA11,3690.0%0.0 pts

43▲11Jasper County, IAIA38,1530.0%−0.1 pts

44▲1Allamakee County, IAIA14,2380.0%0.0 pts

45Van Buren County, IAIA7,1310.0%–

46▲3Carroll County, IAIA20,3030.0%0.0 pts

47▼38Floyd County, IAIA14,9010.0%−0.1 pts

48▼28Black Hawk County, IAIA131,5320.0%0.0 pts

49▲8Dubuque County, IAIA99,3810.0%0.0 pts

50▼34Woodbury County, IAIA106,6490.0%0.0 pts

51▲8Clayton County, IAIA16,8450.0%0.0 pts

52▲6Monona County, IAIA8,5390.0%0.0 pts

53▼15Scott County, IAIA175,2590.0%0.0 pts

54Calhoun County, IAIA9,5620.0%0.0 pts

55▼32Keokuk County, IAIA9,7970.0%–

56▼13Buena Vista County, IAIA20,4490.0%−0.1 pts

57▼44Mitchell County, IAIA10,6500.0%–

58▼31Buchanan County, IAIA20,8830.0%−0.1 pts

59▼41Sioux County, IAIA36,7740.0%−0.1 pts

SHOWING 1–59 OF 59

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