RANKING · 2020 CENSUS · 78 SHOWN OF 78

Highest Puerto Rican population share, Iowa counties · 2020

Iowa counties ranked by the share of all residents who are Puerto Rican origin (2020 American Community Survey). A concentration measure: Puerto Rican residents as a percentage of total population. This list covers the 78 counties in Iowa that qualify, ranked against each other statewide. The median across all 78 is 0.2%.

Puerto Rican Americans: full group profile →

IowaAll states All rankings

SAME RANKING BYCities States Metros

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

YEAR2010 2020 2024

RANKPLACESTATEPOPPUERTO RICAN SHAREVS 2010

01Winnebago County, IAIA10,2511.3%–

02Des Moines County, IAIA38,0771.1%+1.0 pts

03Jefferson County, IAIA15,2911.1%–

04O'Brien County, IAIA14,2201.1%–

05Muscatine County, IAIA41,8531.0%+0.4 pts

06Greene County, IAIA8,6580.9%–

07Wright County, IAIA12,8010.7%+0.4 pts

08Marshall County, IAIA39,8900.6%+0.4 pts

09Fayette County, IAIA19,0470.5%–

10Hardin County, IAIA16,4550.5%+0.2 pts

11Adair County, IAIA7,4030.5%–

12Henry County, IAIA19,3490.5%+0.4 pts

13Cerro Gordo County, IAIA42,3720.5%−0.1 pts

14Johnson County, IAIA160,0440.4%0.0 pts

15Polk County, IAIA516,5460.4%+0.3 pts

16Mitchell County, IAIA10,6500.4%–

17Wayne County, IAIA6,7380.4%–

18Dallas County, IAIA118,4570.4%–

19Union County, IAIA11,8290.4%+0.2 pts

20Clinton County, IAIA46,0020.4%+0.3 pts

21Kossuth County, IAIA14,3220.4%+0.3 pts

22Woodbury County, IAIA106,6490.3%+0.1 pts

23Webster County, IAIA36,8380.3%+0.2 pts

24Monroe County, IAIA7,4060.3%–

25Emmet County, IAIA9,1070.3%–

26Black Hawk County, IAIA131,5320.3%+0.1 pts

27Story County, IAIA101,2910.3%0.0 pts

28Poweshiek County, IAIA18,3680.3%–

29Fremont County, IAIA6,5220.3%+0.2 pts

30Wapello County, IAIA35,2100.3%+0.2 pts

31Allamakee County, IAIA14,2380.3%+0.1 pts

32Jasper County, IAIA38,1530.2%+0.2 pts

33Hancock County, IAIA10,5280.2%–

34Scott County, IAIA175,2590.2%+0.1 pts

35Pottawattamie County, IAIA92,9960.2%+0.2 pts

36Floyd County, IAIA14,9010.2%–

37Decatur County, IAIA7,6550.2%+0.2 pts

38Carroll County, IAIA20,3030.2%+0.2 pts

39Clarke County, IAIA9,5740.2%–

40Bremer County, IAIA25,2960.2%+0.1 pts

41Winneshiek County, IAIA19,7330.1%0.0 pts

42Linn County, IAIA232,0280.1%0.0 pts

43Dickinson County, IAIA18,0770.1%0.0 pts

44Dubuque County, IAIA99,3810.1%0.0 pts

45Clay County, IAIA16,2020.1%−0.1 pts

46Jackson County, IAIA19,2880.1%−0.1 pts

47Boone County, IAIA26,7990.1%–

48Chickasaw County, IAIA11,6630.1%0.0 pts

49Mahaska County, IAIA21,8800.1%0.0 pts

50Tama County, IAIA16,7960.1%0.0 pts

51Grundy County, IAIA12,3610.1%−0.3 pts

52Keokuk County, IAIA9,7970.1%–

53Sioux County, IAIA36,7740.1%–

54Audubon County, IAIA5,5090.1%–

55Ida County, IAIA6,7770.1%−0.1 pts

56Louisa County, IAIA10,4160.1%−0.1 pts

57Iowa County, IAIA16,5040.1%0.0 pts

58Shelby County, IAIA11,6890.1%–

59Butler County, IAIA14,0490.1%–

60Worth County, IAIA7,3380.1%0.0 pts

61Madison County, IAIA17,2700.1%–

62Warren County, IAIA57,3310.1%0.0 pts

63Howard County, IAIA9,4150.1%–

64Crawford County, IAIA16,2370.0%−0.6 pts

65Buena Vista County, IAIA20,4490.0%−0.5 pts

66Clayton County, IAIA16,8450.0%−0.2 pts

67Buchanan County, IAIA20,8830.0%−0.1 pts

68Washington County, IAIA22,6670.0%−0.1 pts

69Humboldt County, IAIA9,4090.0%–

70Lee County, IAIA32,3060.0%−0.1 pts

71Plymouth County, IAIA25,6970.0%−0.1 pts

72Marion County, IAIA34,1920.0%−0.6 pts

73Benton County, IAIA26,0040.0%0.0 pts

74Cedar County, IAIA18,3590.0%0.0 pts

75Sac County, IAIA9,5250.0%–

76Jones County, IAIA21,2530.0%−0.1 pts

77Guthrie County, IAIA10,7820.0%–

78Cherokee County, IAIA11,3690.0%–

SHOWING 1–78 OF 78

Download CSV (full list, 78 rows)

UPDATED 2026-09-11 · DATA: US CENSUS BUREAU DECENNIAL CENSUS