RANKING · 2024 ACS · 56 SHOWN OF 56

Largest Canadian population, Iowa counties

Iowa counties ranked by the number of residents who are Canadian ancestry, from the 2024 American Community Survey detailed-origin tables. Each list covers the full eligible universe; download the complete data as CSV. This list covers the 56 counties in Iowa that qualify, ranked against each other statewide.

Canadian 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

RANKPLACESTATEPOPCANADIAN POPULATIONVS 2010

01Polk County, IAIA516,546322−39%

02Story County, IAIA101,291238+34%

03Linn County, IAIA232,028158−25%

04Scott County, IAIA175,259109−66%

05Woodbury County, IAIA106,64982+9%

06Des Moines County, IAIA38,07780+471%

07Warren County, IAIA57,33176+49%

08Johnson County, IAIA160,04465−73%

09Poweshiek County, IAIA18,36864+276%

10Sioux County, IAIA36,77453+13%

11Carroll County, IAIA20,30352–

12Dickinson County, IAIA18,07751+467%

13Black Hawk County, IAIA131,53249−22%

14Hardin County, IAIA16,45549−13%

15Clinton County, IAIA46,00240−60%

16Jasper County, IAIA38,15340+400%

17Grundy County, IAIA12,36137–

18Pottawattamie County, IAIA92,99632−41%

19Dubuque County, IAIA99,38131−74%

20Lee County, IAIA32,30631−48%

21Monroe County, IAIA7,40628–

22Iowa County, IAIA16,50427+238%

23Marshall County, IAIA39,89024+41%

24Clayton County, IAIA16,84523+667%

25Winnebago County, IAIA10,25122–

26Boone County, IAIA26,79920−35%

27Webster County, IAIA36,83819−53%

28Decatur County, IAIA7,65516−81%

29Louisa County, IAIA10,41614+17%

30Taylor County, IAIA5,83513+30%

31Buchanan County, IAIA20,88313–

32Butler County, IAIA14,04913+225%

33Dallas County, IAIA118,45713−90%

34Howard County, IAIA9,41511−48%

35Marion County, IAIA34,19211−61%

36Mills County, IAIA14,79310−71%

37Ida County, IAIA6,7779–

38Palo Alto County, IAIA8,8999−50%

39Washington County, IAIA22,6679−82%

40Cerro Gordo County, IAIA42,3728−20%

41Jackson County, IAIA19,2888−82%

42Chickasaw County, IAIA11,6637−50%

43Fremont County, IAIA6,5227–

44Union County, IAIA11,8296−71%

45Cherokee County, IAIA11,3694–

46Monona County, IAIA8,5394+33%

47Ringgold County, IAIA4,6424–

48Wapello County, IAIA35,2104−95%

49Worth County, IAIA7,3384−71%

50Franklin County, IAIA9,8683−91%

51Mitchell County, IAIA10,6502–

52Bremer County, IAIA25,2962−80%

53Lyon County, IAIA12,3542−33%

54Cedar County, IAIA18,3591−96%

55Harrison County, IAIA14,6231−96%

56Mahaska County, IAIA21,8801–

SHOWING 1–56 OF 56

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UPDATED 2026-07-15 · DATA: US CENSUS BUREAU ACS 5-YEAR ESTIMATES