RANKING · 2020 CENSUS · 73 SHOWN OF 73

Highest Canadian population share, Iowa counties · 2020

Iowa counties ranked by the share of all residents who are Canadian ancestry (2023 American Community Survey). A concentration measure: Canadian residents as a percentage of total population. This list covers the 73 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

RANKPLACESTATEPOPCANADIAN SHAREVS 2000

01Wayne County, IAIA6,7380.8%–

02Clayton County, IAIA16,8450.3%–

03Sac County, IAIA9,5250.3%–

04Poweshiek County, IAIA18,3680.3%–

05Howard County, IAIA9,4150.3%–

06Warren County, IAIA57,3310.2%–

07Emmet County, IAIA9,1070.2%–

08Cedar County, IAIA18,3590.2%–

09Hardin County, IAIA16,4550.2%–

10Clay County, IAIA16,2020.2%–

11Keokuk County, IAIA9,7970.2%–

12Linn County, IAIA232,0280.2%–

13Chickasaw County, IAIA11,6630.2%–

14Sioux County, IAIA36,7740.2%–

15Fremont County, IAIA6,5220.2%–

16Floyd County, IAIA14,9010.2%–

17Jefferson County, IAIA15,2910.2%–

18Buena Vista County, IAIA20,4490.2%–

19Cerro Gordo County, IAIA42,3720.2%–

20Winnebago County, IAIA10,2510.1%–

21Fayette County, IAIA19,0470.1%–

22Hamilton County, IAIA14,9440.1%–

23Des Moines County, IAIA38,0770.1%–

24Washington County, IAIA22,6670.1%–

25Hancock County, IAIA10,5280.1%–

26Story County, IAIA101,2910.1%–

27Woodbury County, IAIA106,6490.1%–

28Marion County, IAIA34,1920.1%–

29Johnson County, IAIA160,0440.1%–

30Mahaska County, IAIA21,8800.1%–

31Polk County, IAIA516,5460.1%–

32Franklin County, IAIA9,8680.1%–

33Madison County, IAIA17,2700.1%–

34Scott County, IAIA175,2590.1%–

35Wapello County, IAIA35,2100.1%–

36Webster County, IAIA36,8380.1%–

37Dallas County, IAIA118,4570.1%–

38Benton County, IAIA26,0040.1%–

39Decatur County, IAIA7,6550.1%–

40Clinton County, IAIA46,0020.1%–

41Pottawattamie County, IAIA92,9960.1%–

42Adair County, IAIA7,4030.1%–

43Greene County, IAIA8,6580.1%–

44Black Hawk County, IAIA131,5320.1%–

45Tama County, IAIA16,7960.1%–

46Dickinson County, IAIA18,0770.1%–

47Carroll County, IAIA20,3030.1%–

48Muscatine County, IAIA41,8530.1%–

49Adams County, IAIA3,6170.1%–

50Plymouth County, IAIA25,6970.1%–

51O'Brien County, IAIA14,2200.1%–

52Ida County, IAIA6,7770.0%–

53Jackson County, IAIA19,2880.0%–

54Harrison County, IAIA14,6230.0%–

55Marshall County, IAIA39,8900.0%–

56Page County, IAIA14,8560.0%–

57Grundy County, IAIA12,3610.0%–

58Union County, IAIA11,8290.0%–

59Bremer County, IAIA25,2960.0%–

60Montgomery County, IAIA10,0020.0%–

61Crawford County, IAIA16,2370.0%–

62Jasper County, IAIA38,1530.0%–

63Humboldt County, IAIA9,4090.0%–

64Lee County, IAIA32,3060.0%–

65Lyon County, IAIA12,3540.0%–

66Pocahontas County, IAIA6,8190.0%–

67Dubuque County, IAIA99,3810.0%–

68Monona County, IAIA8,5390.0%–

69Winneshiek County, IAIA19,7330.0%–

70Buchanan County, IAIA20,8830.0%–

71Appanoose County, IAIA12,0770.0%–

72Cass County, IAIA12,9600.0%–

73Boone County, IAIA26,7990.0%–

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