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 (2020 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.

Spaniard 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

RANKPLACESTATEPOPSPANIARD SHAREVS 2010

01Monroe County, IAIA7,4060.7%+0.5 pts

02Cass County, IAIA12,9600.5%–

03Mahaska County, IAIA21,8800.3%+0.2 pts

04Lucas County, IAIA8,8470.3%–

05Guthrie County, IAIA10,7820.3%+0.2 pts

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%−0.1 pts

11Wapello County, IAIA35,2100.2%–

12Harrison County, IAIA14,6230.2%+0.1 pts

13Washington County, IAIA22,6670.2%+0.0 pts

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%+0.1 pts

19Cerro Gordo County, IAIA42,3720.2%–

20Johnson County, IAIA160,0440.1%+0.1 pts

21Winneshiek County, IAIA19,7330.1%–

22Linn County, IAIA232,0280.1%+0.1 pts

23Adams County, IAIA3,6170.1%−0.1 pts

24Polk County, IAIA516,5460.1%+0.1 pts

25Decatur County, IAIA7,6550.1%–

26O'Brien County, IAIA14,2200.1%–

27Woodbury County, IAIA106,6490.1%+0.1 pts

28Story County, IAIA101,2910.1%−0.0 pts

29Pottawattamie County, IAIA92,9960.1%+0.0 pts

30Dubuque County, IAIA99,3810.1%+0.0 pts

31Jones County, IAIA21,2530.1%–

32Black Hawk County, IAIA131,5320.1%−0.0 pts

33Page County, IAIA14,8560.1%–

34Fayette County, IAIA19,0470.1%+0.0 pts

35Lyon County, IAIA12,3540.1%–

36Plymouth County, IAIA25,6970.0%+0.0 pts

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%−0.0 pts

46Benton County, IAIA26,0040.0%–

47Hardin County, IAIA16,4550.0%–

48Scott County, IAIA175,2590.0%−0.0 pts

49Madison County, IAIA17,2700.0%−0.2 pts

50Mitchell County, IAIA10,6500.0%–

51Des Moines County, IAIA38,0770.0%–

52Cedar County, IAIA18,3590.0%−0.1 pts

53Jasper County, IAIA38,1530.0%–

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UPDATED 2026-08-08 · DATA: US CENSUS BUREAU DECENNIAL CENSUS