RANKING · 2024 ACS · 29 SHOWN OF 29

Highest Dominican population share, Iowa counties

Iowa counties ranked by the share of all residents who are Dominican origin (2024 American Community Survey). A concentration measure: Dominican residents as a percentage of total population. This list covers the 29 counties in Iowa that qualify, ranked against each other statewide.

Dominican Americans: full group profile →

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

RANKPLACESTATEPOPDOMINICAN SHAREVS 2010

01Marshall County, IAIA39,8900.6%–

02Winneshiek County, IAIA19,7330.5%–

03Clinton County, IAIA46,0020.3%+0.3 pts

04Wayne County, IAIA6,7380.3%–

05Floyd County, IAIA14,9010.2%+0.1 pts

06Des Moines County, IAIA38,0770.2%–

07Scott County, IAIA175,2590.1%+0.1 pts

08Webster County, IAIA36,8380.1%–

09Clayton County, IAIA16,8450.1%–

10Woodbury County, IAIA106,6490.1%+0.1 pts

11Wapello County, IAIA35,2100.1%+0.0 pts

12Black Hawk County, IAIA131,5320.1%–

13Jefferson County, IAIA15,2910.1%–

14Decatur County, IAIA7,6550.1%–

15Boone County, IAIA26,7990.1%–

16Buena Vista County, IAIA20,4490.1%−0.0 pts

17Linn County, IAIA232,0280.1%–

18Marion County, IAIA34,1920.1%–

19Johnson County, IAIA160,0440.0%+0.0 pts

20Polk County, IAIA516,5460.0%+0.0 pts

21Bremer County, IAIA25,2960.0%–

22Story County, IAIA101,2910.0%−0.0 pts

23Calhoun County, IAIA9,5620.0%–

24Pottawattamie County, IAIA92,9960.0%–

25Dallas County, IAIA118,4570.0%−0.0 pts

26Warren County, IAIA57,3310.0%–

27Cedar County, IAIA18,3590.0%–

28Poweshiek County, IAIA18,3680.0%–

29Dubuque County, IAIA99,3810.0%−0.0 pts

SHOWING 1–29 OF 29

Download CSV (full list, 29 rows)

UPDATED 2026-08-08 · DATA: US CENSUS BUREAU ACS 5-YEAR ESTIMATES