RANKING · 2020 CENSUS · 35 SHOWN OF 35

Highest Colombian population share, Iowa counties · 2020

Iowa counties ranked by the share of all residents who are Colombian origin (2023 American Community Survey). A concentration measure: Colombian residents as a percentage of total population. This list covers the 35 counties in Iowa that qualify, ranked against each other statewide.

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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 SHAREVS 2000

01Clarke County, IAIA9,5742.1%–

02Lucas County, IAIA8,8470.4%–

03Jefferson County, IAIA15,2910.4%–

04Johnson County, IAIA160,0440.3%–

05Bremer County, IAIA25,2960.3%–

06Dickinson County, IAIA18,0770.3%–

07Pottawattamie County, IAIA92,9960.2%–

08Decatur County, IAIA7,6550.1%–

09Muscatine County, IAIA41,8530.1%–

10Page County, IAIA14,8560.1%–

11Louisa County, IAIA10,4160.1%–

12O'Brien County, IAIA14,2200.1%–

13Dallas County, IAIA118,4570.1%–

14Buchanan County, IAIA20,8830.1%–

15Warren County, IAIA57,3310.1%–

16Henry County, IAIA19,3490.1%–

17Sioux County, IAIA36,7740.1%–

18Butler County, IAIA14,0490.1%–

19Scott County, IAIA175,2590.0%–

20Van Buren County, IAIA7,1310.0%–

21Polk County, IAIA516,5460.0%–

22Sac County, IAIA9,5250.0%–

23Woodbury County, IAIA106,6490.0%–

24Benton County, IAIA26,0040.0%–

25Clay County, IAIA16,2020.0%–

26Black Hawk County, IAIA131,5320.0%–

27Calhoun County, IAIA9,5620.0%–

28Story County, IAIA101,2910.0%–

29Dubuque County, IAIA99,3810.0%–

30Lee County, IAIA32,3060.0%–

31Chickasaw County, IAIA11,6630.0%–

32Linn County, IAIA232,0280.0%–

33Madison County, IAIA17,2700.0%–

34Webster County, IAIA36,8380.0%–

35Jasper County, IAIA38,1530.0%–

SHOWING 1–35 OF 35

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