RANKING · 2010 CENSUS · 56 SHOWN OF 56

Highest Croatian population share, Iowa counties · 2010

Iowa counties ranked by the share of all residents who are Croatian ancestry (2010 American Community Survey). A concentration measure: Croatian residents as a percentage of total population. This list covers the 56 counties in Iowa that qualify, ranked against each other statewide.

Croatian 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

RANKPLACESTATEPOPCROATIAN SHAREVS –

01Appanoose County, IAIA12,0774.6%–

02Monroe County, IAIA7,4061.5%–

03Wayne County, IAIA6,7380.4%–

04Marion County, IAIA34,1920.4%–

05Cass County, IAIA12,9600.3%–

06Marshall County, IAIA39,8900.3%–

07Scott County, IAIA175,2590.2%–

08Warren County, IAIA57,3310.2%–

09Wapello County, IAIA35,2100.2%–

10Ringgold County, IAIA4,6420.2%–

11Polk County, IAIA516,5460.2%–

12Hancock County, IAIA10,5280.2%–

13Boone County, IAIA26,7990.2%–

14Black Hawk County, IAIA131,5320.2%–

15Pottawattamie County, IAIA92,9960.2%–

16Crawford County, IAIA16,2370.2%–

17Cerro Gordo County, IAIA42,3720.2%–

18Lee County, IAIA32,3060.1%–

19Jasper County, IAIA38,1530.1%–

20Johnson County, IAIA160,0440.1%–

21Mills County, IAIA14,7930.1%–

22Jefferson County, IAIA15,2910.1%–

23Hardin County, IAIA16,4550.1%–

24Calhoun County, IAIA9,5620.1%–

25Page County, IAIA14,8560.1%–

26Lucas County, IAIA8,8470.1%–

27Dallas County, IAIA118,4570.1%–

28Webster County, IAIA36,8380.1%–

29Audubon County, IAIA5,5090.1%–

30Story County, IAIA101,2910.1%–

31Union County, IAIA11,8290.1%–

32Muscatine County, IAIA41,8530.1%–

33Dubuque County, IAIA99,3810.1%–

34Clay County, IAIA16,2020.1%–

35Jones County, IAIA21,2530.1%–

36Woodbury County, IAIA106,6490.1%–

37Wright County, IAIA12,8010.1%–

38Mahaska County, IAIA21,8800.1%–

39Benton County, IAIA26,0040.1%–

40Ida County, IAIA6,7770.1%–

41Linn County, IAIA232,0280.0%–

42Buena Vista County, IAIA20,4490.0%–

43Worth County, IAIA7,3380.0%–

44Keokuk County, IAIA9,7970.0%–

45Clinton County, IAIA46,0020.0%–

46Louisa County, IAIA10,4160.0%–

47Butler County, IAIA14,0490.0%–

48Sioux County, IAIA36,7740.0%–

49Kossuth County, IAIA14,3220.0%–

50Clayton County, IAIA16,8450.0%–

51Greene County, IAIA8,6580.0%–

52Cherokee County, IAIA11,3690.0%–

53Winneshiek County, IAIA19,7330.0%–

54Iowa County, IAIA16,5040.0%–

55Plymouth County, IAIA25,6970.0%–

56Fayette County, IAIA19,0470.0%–

SHOWING 1–56 OF 56

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UPDATED 2026-08-08 · DATA: US CENSUS BUREAU DECENNIAL CENSUS