RANKING · 2020 CENSUS · 41 SHOWN OF 41

Highest Romanian population share, Iowa counties · 2020

Iowa counties ranked by the share of all residents who are Romanian ancestry (2023 American Community Survey). A concentration measure: Romanian residents as a percentage of total population. This list covers the 41 counties in Iowa that qualify, ranked against each other statewide.

IowaAll states All rankings

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 SHAREVS 2000

01Mitchell County, IAIA10,6500.8%–

02Floyd County, IAIA14,9010.7%–

03Harrison County, IAIA14,6230.3%–

04Warren County, IAIA57,3310.2%–

05Jefferson County, IAIA15,2910.2%–

06Dallas County, IAIA118,4570.1%–

07Clinton County, IAIA46,0020.1%–

08Poweshiek County, IAIA18,3680.1%–

09Muscatine County, IAIA41,8530.1%–

10Decatur County, IAIA7,6550.1%–

11Montgomery County, IAIA10,0020.1%–

12Bremer County, IAIA25,2960.1%–

13Des Moines County, IAIA38,0770.1%–

14Jackson County, IAIA19,2880.1%–

15Tama County, IAIA16,7960.1%–

16Emmet County, IAIA9,1070.1%–

17Henry County, IAIA19,3490.1%–

18Black Hawk County, IAIA131,5320.0%–

19Pottawattamie County, IAIA92,9960.0%–

20Worth County, IAIA7,3380.0%–

21Polk County, IAIA516,5460.0%–

22Madison County, IAIA17,2700.0%–

23Dubuque County, IAIA99,3810.0%–

24Van Buren County, IAIA7,1310.0%–

25Scott County, IAIA175,2590.0%–

26Mahaska County, IAIA21,8800.0%–

27Plymouth County, IAIA25,6970.0%–

28Woodbury County, IAIA106,6490.0%–

29Story County, IAIA101,2910.0%–

30Winnebago County, IAIA10,2510.0%–

31Lee County, IAIA32,3060.0%–

32Jasper County, IAIA38,1530.0%–

33Johnson County, IAIA160,0440.0%–

34Allamakee County, IAIA14,2380.0%–

35Sioux County, IAIA36,7740.0%–

36Hamilton County, IAIA14,9440.0%–

37Mills County, IAIA14,7930.0%–

38Linn County, IAIA232,0280.0%–

39Benton County, IAIA26,0040.0%–

40Boone County, IAIA26,7990.0%–

41Kossuth County, IAIA14,3220.0%–

SHOWING 1–41 OF 41

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