RANKING · 2010 CENSUS · 72 SHOWN OF 72

Highest Finnish population share, Iowa counties · 2010

Iowa counties ranked by the share of all residents who are Finnish ancestry (2010 American Community Survey). A concentration measure: Finnish residents as a percentage of total population. This list covers the 72 counties in Iowa that qualify, ranked against each other statewide. The median across all 72 is 0.1%.

Finnish 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

RANKPLACESTATEPOPFINNISH SHAREVS –

01Winneshiek County, IAIA19,7330.6%–

02Wayne County, IAIA6,7380.5%–

03Muscatine County, IAIA41,8530.3%–

04Sac County, IAIA9,5250.2%–

05Dallas County, IAIA118,4570.2%–

06Appanoose County, IAIA12,0770.2%–

07Winnebago County, IAIA10,2510.2%–

08Van Buren County, IAIA7,1310.2%–

09Lyon County, IAIA12,3540.2%–

10Floyd County, IAIA14,9010.2%–

11Buena Vista County, IAIA20,4490.2%–

12Cerro Gordo County, IAIA42,3720.2%–

13Mitchell County, IAIA10,6500.2%–

14Clinton County, IAIA46,0020.2%–

15Crawford County, IAIA16,2370.2%–

16Monroe County, IAIA7,4060.2%–

17Cedar County, IAIA18,3590.2%–

18Jefferson County, IAIA15,2910.2%–

19Warren County, IAIA57,3310.2%–

20Ida County, IAIA6,7770.2%–

21Adair County, IAIA7,4030.2%–

22Poweshiek County, IAIA18,3680.2%–

23Palo Alto County, IAIA8,8990.1%–

24Johnson County, IAIA160,0440.1%–

25Clarke County, IAIA9,5740.1%–

26Howard County, IAIA9,4150.1%–

27Black Hawk County, IAIA131,5320.1%–

28Linn County, IAIA232,0280.1%–

29Jasper County, IAIA38,1530.1%–

30Polk County, IAIA516,5460.1%–

31Clayton County, IAIA16,8450.1%–

32Dickinson County, IAIA18,0770.1%–

33Monona County, IAIA8,5390.1%–

34Webster County, IAIA36,8380.1%–

35Sioux County, IAIA36,7740.1%–

36Clay County, IAIA16,2020.1%–

37Fremont County, IAIA6,5220.1%–

38Story County, IAIA101,2910.1%–

39Mahaska County, IAIA21,8800.1%–

40Buchanan County, IAIA20,8830.1%–

41Jackson County, IAIA19,2880.1%–

42Woodbury County, IAIA106,6490.1%–

43Benton County, IAIA26,0040.1%–

44Dubuque County, IAIA99,3810.1%–

45Plymouth County, IAIA25,6970.1%–

46Worth County, IAIA7,3380.1%–

47Louisa County, IAIA10,4160.1%–

48Fayette County, IAIA19,0470.1%–

49Kossuth County, IAIA14,3220.1%–

50Hardin County, IAIA16,4550.1%–

51Marshall County, IAIA39,8900.1%–

52Scott County, IAIA175,2590.1%–

53Lee County, IAIA32,3060.1%–

54Boone County, IAIA26,7990.1%–

55Pottawattamie County, IAIA92,9960.1%–

56Allamakee County, IAIA14,2380.0%–

57Carroll County, IAIA20,3030.0%–

58Mills County, IAIA14,7930.0%–

59Madison County, IAIA17,2700.0%–

60Marion County, IAIA34,1920.0%–

61Grundy County, IAIA12,3610.0%–

62Greene County, IAIA8,6580.0%–

63Hamilton County, IAIA14,9440.0%–

64Des Moines County, IAIA38,0770.0%–

65Butler County, IAIA14,0490.0%–

66Harrison County, IAIA14,6230.0%–

67Page County, IAIA14,8560.0%–

68Chickasaw County, IAIA11,6630.0%–

69Wright County, IAIA12,8010.0%–

70Emmet County, IAIA9,1070.0%–

71Cherokee County, IAIA11,3690.0%–

72Henry County, IAIA19,3490.0%–

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UPDATED 2026-09-11 · DATA: US CENSUS BUREAU DECENNIAL CENSUS