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. The median across all 71 is 0.1%. Biggest climber in the top 100 since 2020: Lee County, IA, up 43 places to #7.

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

01▲7Dallas County, IAIA118,4571.0%+0.4 pts

02▲1Jefferson County, IAIA15,2910.9%+0.7 pts

03▼2Clarke County, IAIA9,5740.8%–

04Taylor County, IAIA5,8350.7%–

05▼3Johnson County, IAIA160,0440.7%+0.3 pts

06▲11O'Brien County, IAIA14,2200.5%+0.4 pts

07▲43Lee County, IAIA32,3060.5%–

08▼3Story County, IAIA101,2910.4%+0.2 pts

09▼2Kossuth County, IAIA14,3220.4%–

10Pocahontas County, IAIA6,8190.4%–

11▲22Fayette County, IAIA19,0470.3%–

12▲3Hardin County, IAIA16,4550.3%+0.1 pts

13▼4Bremer County, IAIA25,2960.3%+0.2 pts

14▲2Polk County, IAIA516,5460.3%+0.1 pts

15▲34Calhoun County, IAIA9,5620.3%–

16▲9Wright County, IAIA12,8010.3%+0.3 pts

17▲9Buchanan County, IAIA20,8830.3%–

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

19▼5Grundy County, IAIA12,3610.3%–

20▲3Decatur County, IAIA7,6550.3%0.0 pts

21▲22Hamilton County, IAIA14,9440.2%+0.1 pts

22Winnebago County, IAIA10,2510.2%0.0 pts

23▲4Muscatine County, IAIA41,8530.2%0.0 pts

24▼11Winneshiek County, IAIA19,7330.2%+0.2 pts

25▲22Cedar County, IAIA18,3590.2%–

26Greene County, IAIA8,6580.2%–

27Palo Alto County, IAIA8,8990.2%–

28▲10Marshall County, IAIA39,8900.2%+0.2 pts

29Cass County, IAIA12,9600.2%–

30▼8Woodbury County, IAIA106,6490.2%+0.1 pts

31Davis County, IAIA9,2300.2%–

32▼3Black Hawk County, IAIA131,5320.2%0.0 pts

33▼2Dubuque County, IAIA99,3810.1%0.0 pts

34▼24Dickinson County, IAIA18,0770.1%+0.1 pts

35▼17Butler County, IAIA14,0490.1%–

36▼4Scott County, IAIA175,2590.1%0.0 pts

37▲7Carroll County, IAIA20,3030.1%–

38▼14Warren County, IAIA57,3310.1%+0.1 pts

39▼19Des Moines County, IAIA38,0770.1%0.0 pts

40Worth County, IAIA7,3380.1%0.0 pts

41Plymouth County, IAIA25,6970.1%−0.2 pts

42▼23Linn County, IAIA232,0280.1%0.0 pts

43Emmet County, IAIA9,1070.1%–

44▼10Union County, IAIA11,8290.1%–

45▼9Henry 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%–

50▼13Sioux County, IAIA36,7740.1%0.0 pts

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

52▼11Guthrie County, IAIA10,7820.1%–

53Monona County, IAIA8,5390.1%–

54Ida County, IAIA6,7770.1%–

55▼51Lucas County, IAIA8,8470.1%–

56▼44Poweshiek County, IAIA18,3680.1%0.0 pts

57Clayton County, IAIA16,8450.1%–

58▼23Webster County, IAIA36,8380.1%–

59▼31Louisa County, IAIA10,4160.0%–

60▼54Page County, IAIA14,8560.0%−0.1 pts

61Boone County, IAIA26,7990.0%0.0 pts

62▼11Chickasaw County, IAIA11,6630.0%–

63▼9Tama County, IAIA16,7960.0%–

64Wapello County, IAIA35,2100.0%−0.1 pts

65▼25Jasper County, IAIA38,1530.0%0.0 pts

66▼45Montgomery County, IAIA10,0020.0%–

67Crawford County, IAIA16,2370.0%−0.2 pts

68▼20Clay County, IAIA16,2020.0%–

69▼58Pottawattamie 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 2026-09-11 · DATA: US CENSUS BUREAU ACS 5-YEAR ESTIMATES