RANKING · 2010 CENSUS · 74 SHOWN OF 74

Highest Canadian population share, Iowa counties · 2010

Iowa counties ranked by the share of all residents who are Canadian ancestry (2010 American Community Survey). A concentration measure: Canadian residents as a percentage of total population. This list covers the 74 counties in Iowa that qualify, ranked against each other statewide. The median across all 74 is 0.1%.

Canadian Americans: full group profile →

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

RANKPLACESTATEPOPCANADIAN SHAREVS –

01Decatur County, IAIA7,6551.0%–

02Jefferson County, IAIA15,2910.7%–

03Hardin County, IAIA16,4550.3%–

04Franklin County, IAIA9,8680.3%–

05Mills County, IAIA14,7930.2%–

06Washington County, IAIA22,6670.2%–

07Jackson County, IAIA19,2880.2%–

08Howard County, IAIA9,4150.2%–

09Wapello County, IAIA35,2100.2%–

10Dallas County, IAIA118,4570.2%–

11Story County, IAIA101,2910.2%–

12Clinton County, IAIA46,0020.2%–

13Scott County, IAIA175,2590.2%–

14Van Buren County, IAIA7,1310.2%–

15Palo Alto County, IAIA8,8990.2%–

16Johnson County, IAIA160,0440.2%–

17Shelby County, IAIA11,6890.2%–

18Worth County, IAIA7,3380.2%–

19Jones County, IAIA21,2530.2%–

20Harrison County, IAIA14,6230.2%–

21Union County, IAIA11,8290.2%–

22Adair County, IAIA7,4030.2%–

23Lee County, IAIA32,3060.2%–

24Wright County, IAIA12,8010.2%–

25Taylor County, IAIA5,8350.2%–

26Guthrie County, IAIA10,7820.2%–

27Sac County, IAIA9,5250.1%–

28Keokuk County, IAIA9,7970.1%–

29Sioux County, IAIA36,7740.1%–

30Clay County, IAIA16,2020.1%–

31Cedar County, IAIA18,3590.1%–

32Dubuque County, IAIA99,3810.1%–

33Polk County, IAIA516,5460.1%–

34Plymouth County, IAIA25,6970.1%–

35Madison County, IAIA17,2700.1%–

36Adams County, IAIA3,6170.1%–

37Boone County, IAIA26,7990.1%–

38Warren County, IAIA57,3310.1%–

39Chickasaw County, IAIA11,6630.1%–

40Page County, IAIA14,8560.1%–

41Buena Vista County, IAIA20,4490.1%–

42Webster County, IAIA36,8380.1%–

43Louisa County, IAIA10,4160.1%–

44Linn County, IAIA232,0280.1%–

45Poweshiek County, IAIA18,3680.1%–

46Hamilton County, IAIA14,9440.1%–

47Hancock County, IAIA10,5280.1%–

48Marion County, IAIA34,1920.1%–

49Woodbury County, IAIA106,6490.1%–

50Crawford County, IAIA16,2370.1%–

51Fayette County, IAIA19,0470.1%–

52Pottawattamie County, IAIA92,9960.1%–

53Tama County, IAIA16,7960.1%–

54Dickinson County, IAIA18,0770.1%–

55Benton County, IAIA26,0040.1%–

56Iowa County, IAIA16,5040.0%–

57Black Hawk County, IAIA131,5320.0%–

58Winneshiek County, IAIA19,7330.0%–

59Marshall County, IAIA39,8900.0%–

60Bremer County, IAIA25,2960.0%–

61Appanoose County, IAIA12,0770.0%–

62Montgomery County, IAIA10,0020.0%–

63Cass County, IAIA12,9600.0%–

64Des Moines County, IAIA38,0770.0%–

65Monona County, IAIA8,5390.0%–

66Calhoun County, IAIA9,5620.0%–

67Butler County, IAIA14,0490.0%–

68Lyon County, IAIA12,3540.0%–

69Floyd County, IAIA14,9010.0%–

70Cerro Gordo County, IAIA42,3720.0%–

71Jasper County, IAIA38,1530.0%–

72O'Brien County, IAIA14,2200.0%–

73Clayton County, IAIA16,8450.0%–

74Henry County, IAIA19,3490.0%–

SHOWING 1–74 OF 74

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