RANKING · 2020 CENSUS · 41 SHOWN OF 41

Largest Romanian population, Iowa counties · 2020

Iowa counties ranked by the number of residents who are Romanian ancestry, 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 41 counties in Iowa that qualify, ranked against each other statewide.

Romanian Americans: full group profile →

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SAME RANKING BYCities States Metros

RELATEDLargest American population Highest American population share Largest Arab population Highest Arab population share Largest Egyptian population Highest Egyptian population share

YEAR2010 2020 2024

RANKPLACESTATEPOPROMANIAN POPULATIONVS 2010

01Polk County, IAIA516,546164−18%

02Dallas County, IAIA118,457129+461%

03Warren County, IAIA57,331105+2000%

04Floyd County, IAIA14,901103–

05Mitchell County, IAIA10,65084–

06Black Hawk County, IAIA131,53265+38%

07Clinton County, IAIA46,00265+5%

08Muscatine County, IAIA41,85354+218%

09Scott County, IAIA175,25948−39%

10Pottawattamie County, IAIA92,99645+181%

11Harrison County, IAIA14,62340+900%

12Des Moines County, IAIA38,07737–

13Jefferson County, IAIA15,29132−3%

14Dubuque County, IAIA99,38130−80%

15Linn County, IAIA232,02827−75%

16Bremer County, IAIA25,29625+150%

17Johnson County, IAIA160,04424−89%

18Poweshiek County, IAIA18,36824−25%

19Woodbury County, IAIA106,64922−65%

20Story County, IAIA101,29119−51%

21Jackson County, IAIA19,28816+0%

22Tama County, IAIA16,79613–

23Henry County, IAIA19,34911–

24Montgomery County, IAIA10,00211–

25Decatur County, IAIA7,6559–

26Emmet County, IAIA9,1077–

27Lee County, IAIA32,3066−68%

28Mahaska County, IAIA21,8806–

29Plymouth County, IAIA25,6976–

30Jasper County, IAIA38,1536−74%

31Sioux County, IAIA36,7745–

32Madison County, IAIA17,2705–

33Boone County, IAIA26,7993–

34Benton County, IAIA26,0043–

35Worth County, IAIA7,3383−63%

36Allamakee County, IAIA14,2382–

37Hamilton County, IAIA14,9442–

38Mills County, IAIA14,7932–

39Van Buren County, IAIA7,1312−33%

40Winnebago County, IAIA10,2512–

41Kossuth County, IAIA14,3221−67%

SHOWING 1–41 OF 41

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UPDATED 2026-07-15 · DATA: US CENSUS BUREAU DECENNIAL CENSUS