RANKING · 2010 CENSUS · 30 SHOWN OF 30

Highest Spaniard population share, Iowa counties · 2010

Iowa counties ranked by the share of all residents who are Spaniard origin (2010 American Community Survey). A concentration measure: Spaniard residents as a percentage of total population. This list covers the 30 counties in Iowa that qualify, ranked against each other statewide. The median across all 30 is 0.1%.

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 –

01Ringgold County, IAIA4,6420.4%–

02Appanoose County, IAIA12,0770.3%–

03Monroe County, IAIA7,4060.2%–

04Madison County, IAIA17,2700.2%–

05Adams County, IAIA3,6170.2%–

06Washington County, IAIA22,6670.2%–

07Palo Alto County, IAIA8,8990.1%–

08Mahaska County, IAIA21,8800.1%–

09Boone County, IAIA26,7990.1%–

10Story County, IAIA101,2910.1%–

11Jackson County, IAIA19,2880.1%–

12Guthrie County, IAIA10,7820.1%–

13Cedar County, IAIA18,3590.1%–

14Black Hawk County, IAIA131,5320.1%–

15Louisa County, IAIA10,4160.1%–

16Montgomery County, IAIA10,0020.1%–

17Harrison County, IAIA14,6230.0%–

18Warren County, IAIA57,3310.0%–

19Johnson County, IAIA160,0440.0%–

20Polk County, IAIA516,5460.0%–

21Bremer County, IAIA25,2960.0%–

22Marion County, IAIA34,1920.0%–

23Scott County, IAIA175,2590.0%–

24Fayette County, IAIA19,0470.0%–

25Linn County, IAIA232,0280.0%–

26Dubuque County, IAIA99,3810.0%–

27Pottawattamie County, IAIA92,9960.0%–

28Woodbury County, IAIA106,6490.0%–

29Taylor County, IAIA5,8350.0%–

30Plymouth County, IAIA25,6970.0%–

SHOWING 1–30 OF 30

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