RANKING · 2020 CENSUS · 53 SHOWN OF 53

Highest Spaniard population share, Iowa counties · 2020

Iowa counties ranked by the share of all residents who are Spaniard origin (2023 American Community Survey). A concentration measure: Spaniard residents as a percentage of total population. This list covers the 53 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 SHAREVS 2000

01Monroe County, IAIA7,4060.7%–

02Cass County, IAIA12,9600.5%–

03Mahaska County, IAIA21,8800.3%–

04Lucas County, IAIA8,8470.3%–

05Guthrie County, IAIA10,7820.3%–

06Mills County, IAIA14,7930.3%–

07Crawford County, IAIA16,2370.2%–

08Poweshiek County, IAIA18,3680.2%–

09Van Buren County, IAIA7,1310.2%–

10Appanoose County, IAIA12,0770.2%–

11Wapello County, IAIA35,2100.2%–

12Harrison County, IAIA14,6230.2%–

13Washington County, IAIA22,6670.2%–

14Worth County, IAIA7,3380.2%–

15Emmet County, IAIA9,1070.2%–

16Sioux County, IAIA36,7740.2%–

17Iowa County, IAIA16,5040.2%–

18Marion County, IAIA34,1920.2%–

19Cerro Gordo County, IAIA42,3720.2%–

20Johnson County, IAIA160,0440.1%–

21Winneshiek County, IAIA19,7330.1%–

22Linn County, IAIA232,0280.1%–

23Adams County, IAIA3,6170.1%–

24Polk County, IAIA516,5460.1%–

25Decatur County, IAIA7,6550.1%–

26O'Brien County, IAIA14,2200.1%–

27Woodbury County, IAIA106,6490.1%–

28Story County, IAIA101,2910.1%–

29Pottawattamie County, IAIA92,9960.1%–

30Dubuque County, IAIA99,3810.1%–

31Jones County, IAIA21,2530.1%–

32Black Hawk County, IAIA131,5320.1%–

33Page County, IAIA14,8560.1%–

34Fayette County, IAIA19,0470.1%–

35Lyon County, IAIA12,3540.1%–

36Plymouth County, IAIA25,6970.0%–

37Kossuth County, IAIA14,3220.0%–

38Hancock County, IAIA10,5280.0%–

39Carroll County, IAIA20,3030.0%–

40Webster County, IAIA36,8380.0%–

41Clinton County, IAIA46,0020.0%–

42Buena Vista County, IAIA20,4490.0%–

43Dallas County, IAIA118,4570.0%–

44Delaware County, IAIA17,6740.0%–

45Warren County, IAIA57,3310.0%–

46Benton County, IAIA26,0040.0%–

47Hardin County, IAIA16,4550.0%–

48Scott County, IAIA175,2590.0%–

49Madison County, IAIA17,2700.0%–

50Mitchell County, IAIA10,6500.0%–

51Des Moines County, IAIA38,0770.0%–

52Cedar County, IAIA18,3590.0%–

53Jasper County, IAIA38,1530.0%–

SHOWING 1–53 OF 53

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