RANKING · 2020 CENSUS · 35 SHOWN OF 35

Largest Colombian population, Iowa counties · 2020

Iowa counties ranked by the number of residents who are Colombian origin, from the 2020 American Community Survey detailed-origin tables. Each list covers the full eligible universe; download the complete data as CSV. This list covers the 35 counties in Iowa that qualify, ranked against each other statewide. The median across all 35 is 19.

Colombian 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

RANKPLACESTATEPOPCOLOMBIAN POPULATIONVS 2010

01Johnson County, IAIA160,044493+62%

02Polk County, IAIA516,546197−2%

03Clarke County, IAIA9,574196–

04Pottawattamie County, IAIA92,996172+1464%

05Scott County, IAIA175,25981+131%

06Dallas County, IAIA118,45771+73%

07Bremer County, IAIA25,29670–

08Jefferson County, IAIA15,29168+74%

09Muscatine County, IAIA41,85350−38%

10Dickinson County, IAIA18,07748–

11Lucas County, IAIA8,84736–

12Black Hawk County, IAIA131,53232−30%

13Warren County, IAIA57,33132–

14Woodbury County, IAIA106,64931+675%

15Linn County, IAIA232,02828−74%

16Sioux County, IAIA36,77420+82%

17Story County, IAIA101,29120−71%

18Dubuque County, IAIA99,38119+73%

19Page County, IAIA14,85617–

20Buchanan County, IAIA20,88314–

21Henry County, IAIA19,34912–

22Louisa County, IAIA10,41612–

23O'Brien County, IAIA14,22011–

24Decatur County, IAIA7,65510–

25Butler County, IAIA14,0498–

26Benton County, IAIA26,0047–

27Lee County, IAIA32,3066–

28Clay County, IAIA16,2024–

29Webster County, IAIA36,8384–

30Jasper County, IAIA38,1533−79%

31Sac County, IAIA9,5253–

32Van Buren County, IAIA7,1313–

33Calhoun County, IAIA9,5622–

34Chickasaw County, IAIA11,6632–

35Madison County, IAIA17,2702–

SHOWING 1–35 OF 35

Download CSV (full list, 35 rows)

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