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 (2024 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.

South Americans: full group profile →

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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 2010

01Dallas County, IAIA118,4571.0%+0.4 pts

02Jefferson County, IAIA15,2910.9%+0.7 pts

03Clarke County, IAIA9,5740.8%–

04Taylor County, IAIA5,8350.7%–

05Johnson County, IAIA160,0440.7%+0.3 pts

06O'Brien County, IAIA14,2200.5%+0.4 pts

07Lee County, IAIA32,3060.5%–

08Story County, IAIA101,2910.4%+0.2 pts

09Kossuth County, IAIA14,3220.4%–

10Pocahontas County, IAIA6,8190.4%–

11Fayette County, IAIA19,0470.3%–

12Hardin County, IAIA16,4550.3%+0.1 pts

13Bremer County, IAIA25,2960.3%+0.2 pts

14Polk County, IAIA516,5460.3%+0.1 pts

15Calhoun County, IAIA9,5620.3%–

16Wright County, IAIA12,8010.3%+0.3 pts

17Buchanan County, IAIA20,8830.3%–

18Cerro Gordo County, IAIA42,3720.3%+0.2 pts

19Grundy County, IAIA12,3610.3%–

20Decatur County, IAIA7,6550.3%−0.0 pts

21Hamilton County, IAIA14,9440.2%+0.1 pts

22Winnebago County, IAIA10,2510.2%−0.0 pts

23Muscatine County, IAIA41,8530.2%+0.0 pts

24Winneshiek County, IAIA19,7330.2%+0.2 pts

25Cedar County, IAIA18,3590.2%–

26Greene County, IAIA8,6580.2%–

27Palo Alto County, IAIA8,8990.2%–

28Marshall County, IAIA39,8900.2%+0.2 pts

29Cass County, IAIA12,9600.2%–

30Woodbury County, IAIA106,6490.2%+0.1 pts

31Davis County, IAIA9,2300.2%–

32Black Hawk County, IAIA131,5320.2%−0.0 pts

33Dubuque County, IAIA99,3810.1%+0.0 pts

34Dickinson County, IAIA18,0770.1%+0.1 pts

35Butler County, IAIA14,0490.1%–

36Scott County, IAIA175,2590.1%−0.0 pts

37Carroll County, IAIA20,3030.1%–

38Warren County, IAIA57,3310.1%+0.1 pts

39Des Moines County, IAIA38,0770.1%+0.0 pts

40Worth County, IAIA7,3380.1%+0.0 pts

41Plymouth County, IAIA25,6970.1%−0.2 pts

42Linn County, IAIA232,0280.1%−0.0 pts

43Emmet County, IAIA9,1070.1%–

44Union County, IAIA11,8290.1%–

45Henry County, IAIA19,3490.1%−0.1 pts

46Allamakee County, IAIA14,2380.1%–

47Clinton County, IAIA46,0020.1%−0.1 pts

48Audubon County, IAIA5,5090.1%–

49Franklin County, IAIA9,8680.1%–

50Sioux County, IAIA36,7740.1%−0.0 pts

51Buena Vista County, IAIA20,4490.1%−0.3 pts

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%−0.0 pts

57Clayton County, IAIA16,8450.1%–

58Webster County, IAIA36,8380.1%–

59Louisa County, IAIA10,4160.0%–

60Page County, IAIA14,8560.0%−0.1 pts

61Boone County, IAIA26,7990.0%−0.0 pts

62Chickasaw County, IAIA11,6630.0%–

63Tama County, IAIA16,7960.0%–

64Wapello County, IAIA35,2100.0%−0.1 pts

65Jasper County, IAIA38,1530.0%−0.0 pts

66Montgomery County, IAIA10,0020.0%–

67Crawford County, IAIA16,2370.0%−0.2 pts

68Clay County, IAIA16,2020.0%–

69Pottawattamie County, IAIA92,9960.0%−0.0 pts

70Keokuk County, IAIA9,7970.0%–

71Mitchell County, IAIA10,6500.0%–

SHOWING 1–71 OF 71

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UPDATED 2026-08-08 · DATA: US CENSUS BUREAU ACS 5-YEAR ESTIMATES