RANKING · 2024 ACS · 55 SHOWN OF 55

Largest Spaniard population, Iowa counties

Iowa counties ranked by the number of residents who are Spaniard origin, from the 2023 American Community Survey detailed-origin tables. Each list covers the full eligible universe; download the complete data as CSV. This list covers the 55 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

RANKPLACESTATEPOPSPANIARD POPULATIONVS 2000

01Polk County, IAIA516,5461,033–

02Mills County, IAIA14,793243–

03Woodbury County, IAIA106,649168–

04Johnson County, IAIA160,044159–

05Linn County, IAIA232,028126–

06Story County, IAIA101,291122–

07Dallas County, IAIA118,457103–

08Clinton County, IAIA46,002100–

09Pottawattamie County, IAIA92,99687–

10Emmet County, IAIA9,10777–

11Scott County, IAIA175,25970–

12Dubuque County, IAIA99,38160–

13Sioux County, IAIA36,77460–

14Black Hawk County, IAIA131,53251–

15Marion County, IAIA34,19239–

16Cerro Gordo County, IAIA42,37237–

17Harrison County, IAIA14,62335–

18Palo Alto County, IAIA8,89932–

19Floyd County, IAIA14,90130–

20Worth County, IAIA7,33830–

21Des Moines County, IAIA38,07729–

22Webster County, IAIA36,83829–

23Howard County, IAIA9,41524–

24Madison County, IAIA17,27024–

25Plymouth County, IAIA25,69723–

26Lucas County, IAIA8,84720–

27Decatur County, IAIA7,65517–

28Muscatine County, IAIA41,85317–

29Wapello County, IAIA35,21017–

30Dickinson County, IAIA18,07712–

31Warren County, IAIA57,33112–

32Shelby County, IAIA11,68911–

33Cedar County, IAIA18,35910–

34Poweshiek County, IAIA18,36810–

35Washington County, IAIA22,66710–

36Jackson County, IAIA19,2889–

37Calhoun County, IAIA9,5628–

38Sac County, IAIA9,5258–

39Union County, IAIA11,8298–

40Buchanan County, IAIA20,8837–

41Chickasaw County, IAIA11,6637–

42Monona County, IAIA8,5397–

43Montgomery County, IAIA10,0026–

44Henry County, IAIA19,3495–

45Buena Vista County, IAIA20,4494–

46Guthrie County, IAIA10,7824–

47Keokuk County, IAIA9,7974–

48Kossuth County, IAIA14,3224–

49Fayette County, IAIA19,0473–

50Louisa County, IAIA10,4163–

51Page County, IAIA14,8563–

52Ringgold County, IAIA4,6423–

53O'Brien County, IAIA14,2202–

54Franklin County, IAIA9,8681–

55Tama County, IAIA16,7961–

SHOWING 1–55 OF 55

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