RANKING · 2024 ACS · 71 SHOWN OF 71

Largest South American population, Iowa counties

Iowa counties ranked by the number of residents who are South American origin, from the 2024 American Community Survey detailed-origin tables. Each list covers the full eligible universe; download the complete data as CSV. 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 POPULATIONVS 2010

01Polk County, IAIA516,5461,624+101%

02Johnson County, IAIA160,0441,086+101%

03Dallas County, IAIA118,4571,028+221%

04Story County, IAIA101,291399+87%

05Scott County, IAIA175,259229−11%

06Linn County, IAIA232,028225+3%

07Black Hawk County, IAIA131,532211−4%

08Woodbury County, IAIA106,649178+151%

09Lee County, IAIA32,306153–

10Jefferson County, IAIA15,291148+279%

11Dubuque County, IAIA99,381138+28%

12Cerro Gordo County, IAIA42,372114+396%

13Muscatine County, IAIA41,85392+1%

14Bremer County, IAIA25,29683+246%

15Clarke County, IAIA9,57479–

16Marshall County, IAIA39,89070+900%

17O'Brien County, IAIA14,22068+580%

18Warren County, IAIA57,33166+313%

19Fayette County, IAIA19,04764–

20Buchanan County, IAIA20,88362–

21Hardin County, IAIA16,45555+45%

22Kossuth County, IAIA14,32252–

23Des Moines County, IAIA38,07744+63%

24Taylor County, IAIA5,83541–

25Winneshiek County, IAIA19,73340+400%

26Wright County, IAIA12,80140+567%

27Clinton County, IAIA46,00237−53%

28Cedar County, IAIA18,35936–

29Hamilton County, IAIA14,94436+125%

30Grundy County, IAIA12,36133–

31Calhoun County, IAIA9,56231–

32Plymouth County, IAIA25,69726−64%

33Carroll County, IAIA20,30325–

34Dickinson County, IAIA18,07725+178%

35Pocahontas County, IAIA6,81925–

36Sioux County, IAIA36,77425−7%

37Winnebago County, IAIA10,25125−17%

38Cass County, IAIA12,96022–

39Decatur County, IAIA7,65520−13%

40Butler County, IAIA14,04919–

41Webster County, IAIA36,83819–

42Henry County, IAIA19,34918−62%

43Greene County, IAIA8,65817–

44Palo Alto County, IAIA8,89916–

45Davis County, IAIA9,23015–

46Pottawattamie County, IAIA92,99614−55%

47Buena Vista County, IAIA20,44914−83%

48Allamakee County, IAIA14,23812–

49Union County, IAIA11,82911–

50Poweshiek County, IAIA18,36810−17%

51Clayton County, IAIA16,8459–

52Emmet County, IAIA9,1079–

53Jasper County, IAIA38,1538−43%

54Wapello County, IAIA35,2108−73%

55Worth County, IAIA7,3388+14%

56Boone County, IAIA26,7997−22%

57Franklin County, IAIA9,8687–

58Guthrie County, IAIA10,7827–

59Page County, IAIA14,8566−67%

60Louisa County, IAIA10,4165–

61Lucas County, IAIA8,8475–

62Monona County, IAIA8,5395–

63Audubon County, IAIA5,5094–

64Ida County, IAIA6,7774–

65Tama County, IAIA16,7964–

66Chickasaw County, IAIA11,6633–

67Clay County, IAIA16,2023–

68Crawford County, IAIA16,2373−93%

69Montgomery County, IAIA10,0022–

70Mitchell County, IAIA10,6501–

71Keokuk County, IAIA9,7971–

SHOWING 1–71 OF 71

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UPDATED 2026-07-15 · DATA: US CENSUS BUREAU ACS 5-YEAR ESTIMATES