RANKING · 2024 ACS · 71 SHOWN OF 71

Highest South American population share, Iowa counties

Iowa counties ranked by the share of all residents who are South American origin (2023 American Community Survey). A concentration measure: South American residents as a percentage of total population. This list covers the 71 counties in Iowa that qualify, ranked against each other statewide.

IowaAll states All rankings

SAME RANKING BYCities States Metros

RELATEDLargest Mexican population Highest Mexican population share Largest Puerto Rican population Highest Puerto Rican population share Largest Cuban population Highest Cuban population share

YEAR2010 2020 2024

RANKPLACESTATEPOPSOUTH AMERICAN SHAREVS 2000

01Dallas County, IAIA118,4571.0%–

02Jefferson County, IAIA15,2910.9%–

03Clarke County, IAIA9,5740.8%–

04Taylor County, IAIA5,8350.7%–

05Johnson County, IAIA160,0440.7%–

06O'Brien County, IAIA14,2200.5%–

07Lee County, IAIA32,3060.5%–

08Story County, IAIA101,2910.4%–

09Kossuth County, IAIA14,3220.4%–

10Pocahontas County, IAIA6,8190.4%–

11Fayette County, IAIA19,0470.3%–

12Hardin County, IAIA16,4550.3%–

13Bremer County, IAIA25,2960.3%–

14Polk County, IAIA516,5460.3%–

15Calhoun County, IAIA9,5620.3%–

16Wright County, IAIA12,8010.3%–

17Buchanan County, IAIA20,8830.3%–

18Cerro Gordo County, IAIA42,3720.3%–

19Grundy County, IAIA12,3610.3%–

20Decatur County, IAIA7,6550.3%–

21Hamilton County, IAIA14,9440.2%–

22Winnebago County, IAIA10,2510.2%–

23Muscatine County, IAIA41,8530.2%–

24Winneshiek County, IAIA19,7330.2%–

25Cedar County, IAIA18,3590.2%–

26Greene County, IAIA8,6580.2%–

27Palo Alto County, IAIA8,8990.2%–

28Marshall County, IAIA39,8900.2%–

29Cass County, IAIA12,9600.2%–

30Woodbury County, IAIA106,6490.2%–

31Davis County, IAIA9,2300.2%–

32Black Hawk County, IAIA131,5320.2%–

33Dubuque County, IAIA99,3810.1%–

34Dickinson County, IAIA18,0770.1%–

35Butler County, IAIA14,0490.1%–

36Scott County, IAIA175,2590.1%–

37Carroll County, IAIA20,3030.1%–

38Warren County, IAIA57,3310.1%–

39Des Moines County, IAIA38,0770.1%–

40Worth County, IAIA7,3380.1%–

41Plymouth County, IAIA25,6970.1%–

42Linn County, IAIA232,0280.1%–

43Emmet County, IAIA9,1070.1%–

44Union County, IAIA11,8290.1%–

45Henry County, IAIA19,3490.1%–

46Allamakee County, IAIA14,2380.1%–

47Clinton County, IAIA46,0020.1%–

48Audubon County, IAIA5,5090.1%–

49Franklin County, IAIA9,8680.1%–

50Sioux County, IAIA36,7740.1%–

51Buena Vista County, IAIA20,4490.1%–

52Guthrie County, IAIA10,7820.1%–

53Monona County, IAIA8,5390.1%–

54Ida County, IAIA6,7770.1%–

55Lucas County, IAIA8,8470.1%–

56Poweshiek County, IAIA18,3680.1%–

57Clayton County, IAIA16,8450.1%–

58Webster County, IAIA36,8380.1%–

59Louisa County, IAIA10,4160.0%–

60Page County, IAIA14,8560.0%–

61Boone County, IAIA26,7990.0%–

62Chickasaw County, IAIA11,6630.0%–

63Tama County, IAIA16,7960.0%–

64Wapello County, IAIA35,2100.0%–

65Jasper County, IAIA38,1530.0%–

66Montgomery County, IAIA10,0020.0%–

67Crawford County, IAIA16,2370.0%–

68Clay County, IAIA16,2020.0%–

69Pottawattamie County, IAIA92,9960.0%–

70Keokuk County, IAIA9,7970.0%–

71Mitchell County, IAIA10,6500.0%–

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