RANKING · 2010 CENSUS · 74 SHOWN OF 74

Largest Canadian population, Iowa counties · 2010

Iowa counties ranked by the number of residents who are Canadian ancestry, from the 2010 American Community Survey detailed-origin tables. Each list covers the full eligible universe; download the complete data as CSV. This list covers the 74 counties in Iowa that qualify, ranked against each other statewide. The median across all 74 is 18.

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 POPULATIONVS –

01Polk County, IAIA516,546525–

02Scott County, IAIA175,259321–

03Johnson County, IAIA160,044237–

04Linn County, IAIA232,028210–

05Story County, IAIA101,291178–

06Dallas County, IAIA118,457127–

07Dubuque County, IAIA99,381117–

08Jefferson County, IAIA15,291115–

09Clinton County, IAIA46,002100–

10Decatur County, IAIA7,65583–

11Wapello County, IAIA35,21076–

12Woodbury County, IAIA106,64975–

13Black Hawk County, IAIA131,53263–

14Lee County, IAIA32,30660–

15Hardin County, IAIA16,45556–

16Pottawattamie County, IAIA92,99654–

17Warren County, IAIA57,33151–

18Washington County, IAIA22,66749–

19Sioux County, IAIA36,77447–

20Jackson County, IAIA19,28844–

21Webster County, IAIA36,83840–

22Jones County, IAIA21,25338–

23Mills County, IAIA14,79335–

24Franklin County, IAIA9,86832–

25Boone County, IAIA26,79931–

26Plymouth County, IAIA25,69731–

27Marion County, IAIA34,19228–

28Harrison County, IAIA14,62327–

29Cedar County, IAIA18,35925–

30Clay County, IAIA16,20223–

31Shelby County, IAIA11,68923–

32Buena Vista County, IAIA20,44922–

33Wright County, IAIA12,80122–

34Howard County, IAIA9,41521–

35Union County, IAIA11,82921–

36Madison County, IAIA17,27019–

37Page County, IAIA14,85618–

38Palo Alto County, IAIA8,89918–

39Guthrie County, IAIA10,78217–

40Marshall County, IAIA39,89017–

41Poweshiek County, IAIA18,36817–

42Keokuk County, IAIA9,79715–

43Sac County, IAIA9,52515–

44Van Buren County, IAIA7,13115–

45Benton County, IAIA26,00414–

46Chickasaw County, IAIA11,66314–

47Des Moines County, IAIA38,07714–

48Hamilton County, IAIA14,94414–

49Worth County, IAIA7,33814–

50Adair County, IAIA7,40313–

51Fayette County, IAIA19,04713–

52Louisa County, IAIA10,41612–

53Crawford County, IAIA16,23711–

54Bremer County, IAIA25,29610–

55Cerro Gordo County, IAIA42,37210–

56Hancock County, IAIA10,52810–

57Tama County, IAIA16,79610–

58Taylor County, IAIA5,83510–

59Dickinson County, IAIA18,0779–

60Winneshiek County, IAIA19,7339–

61Iowa County, IAIA16,5048–

62Jasper County, IAIA38,1538–

63Adams County, IAIA3,6175–

64Appanoose County, IAIA12,0775–

65Cass County, IAIA12,9605–

66Butler County, IAIA14,0494–

67Floyd County, IAIA14,9014–

68Montgomery County, IAIA10,0024–

69Calhoun County, IAIA9,5623–

70Clayton County, IAIA16,8453–

71Henry County, IAIA19,3493–

72Lyon County, IAIA12,3543–

73Monona County, IAIA8,5393–

74O'Brien County, IAIA14,2203–

SHOWING 1–74 OF 74

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