RANKING · 2020 CENSUS · 75 SHOWN OF 75

Largest Hungarian population, Iowa counties · 2020

Iowa counties ranked by the number of residents who are Hungarian 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 75 counties in Iowa that qualify, ranked against each other statewide.

Hungarian 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

RANKPLACESTATEPOPHUNGARIAN POPULATIONVS 2010

01Polk County, IAIA516,546661+34%

02Johnson County, IAIA160,044465+90%

03Linn County, IAIA232,028287−36%

04Scott County, IAIA175,259270−24%

05Dubuque County, IAIA99,381171−12%

06Black Hawk County, IAIA131,532144+43%

07Story County, IAIA101,291134−51%

08Dallas County, IAIA118,457119+35%

09Mahaska County, IAIA21,88094+31%

10Jones County, IAIA21,25385+150%

11Pottawattamie County, IAIA92,99673−17%

12Woodbury County, IAIA106,64953+61%

13Warren County, IAIA57,33150−46%

14Jefferson County, IAIA15,29148+167%

15Muscatine County, IAIA41,85348−43%

16Boone County, IAIA26,79943–

17Cerro Gordo County, IAIA42,37243−9%

18Benton County, IAIA26,00442−52%

19Union County, IAIA11,82939–

20Decatur County, IAIA7,65538+111%

21Lee County, IAIA32,30637+76%

22Louisa County, IAIA10,41637–

23Des Moines County, IAIA38,07736−8%

24Hamilton County, IAIA14,94429+142%

25Henry County, IAIA19,34928+250%

26Buchanan County, IAIA20,88325−11%

27Hardin County, IAIA16,45523+156%

28Kossuth County, IAIA14,32222+0%

29Guthrie County, IAIA10,78221−67%

30Montgomery County, IAIA10,00221−67%

31Harrison County, IAIA14,62319−5%

32Mills County, IAIA14,79319+58%

33Tama County, IAIA16,79619+19%

34Webster County, IAIA36,83819+73%

35Marshall County, IAIA39,89014−55%

36Shelby County, IAIA11,68914−7%

37Wapello County, IAIA35,21014−80%

38Franklin County, IAIA9,86813–

39Clayton County, IAIA16,84513+44%

40Winnebago County, IAIA10,25113–

41O'Brien County, IAIA14,22012+300%

42Van Buren County, IAIA7,13111+175%

43Cass County, IAIA12,96010−29%

44Humboldt County, IAIA9,40910−68%

45Keokuk County, IAIA9,79710+67%

46Monona County, IAIA8,53910–

47Cedar County, IAIA18,3599−87%

48Bremer County, IAIA25,2969−82%

49Howard County, IAIA9,4158–

50Clinton County, IAIA46,0027+600%

51Fayette County, IAIA19,0477−42%

52Winneshiek County, IAIA19,7337−13%

53Clarke County, IAIA9,5747−36%

54Jasper County, IAIA38,1537−74%

55Crawford County, IAIA16,2376−92%

56Fremont County, IAIA6,5226−57%

57Madison County, IAIA17,2706−85%

58Marion County, IAIA34,1926−57%

59Greene County, IAIA8,6585–

60Hancock County, IAIA10,5285–

61Plymouth County, IAIA25,6975–

62Washington County, IAIA22,6675+25%

63Chickasaw County, IAIA11,6634−56%

64Adair County, IAIA7,4034–

65Wayne County, IAIA6,7384–

66Lyon County, IAIA12,3543−83%

67Monroe County, IAIA7,4063−81%

68Mitchell County, IAIA10,6503−57%

69Worth County, IAIA7,3383−50%

70Allamakee County, IAIA14,2382−96%

71Butler County, IAIA14,0492−83%

72Floyd County, IAIA14,9012–

73Ida County, IAIA6,7771–

74Pocahontas County, IAIA6,8191−90%

75Poweshiek County, IAIA18,3681−97%

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