RANKING · 2024 ACS · 56 SHOWN OF 56

Highest Canadian population share, Iowa counties

Iowa counties ranked by the share of all residents who are Canadian ancestry (2024 American Community Survey). A concentration measure: Canadian residents as a percentage of total population. This list covers the 56 counties in Iowa that qualify, ranked against each other statewide.

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 2010

01Monroe County, IAIA7,4060.4%–

02Poweshiek County, IAIA18,3680.3%+0.3 pts

03Grundy County, IAIA12,3610.3%–

04Hardin County, IAIA16,4550.3%−0.0 pts

05Dickinson County, IAIA18,0770.3%+0.2 pts

06Carroll County, IAIA20,3030.3%–

07Story County, IAIA101,2910.2%+0.0 pts

08Taylor County, IAIA5,8350.2%+0.1 pts

09Winnebago County, IAIA10,2510.2%–

10Des Moines County, IAIA38,0770.2%+0.2 pts

11Decatur County, IAIA7,6550.2%−0.8 pts

12Iowa County, IAIA16,5040.2%+0.1 pts

13Sioux County, IAIA36,7740.1%+0.0 pts

14Warren County, IAIA57,3310.1%+0.0 pts

15Clayton County, IAIA16,8450.1%+0.1 pts

16Louisa County, IAIA10,4160.1%+0.0 pts

17Ida County, IAIA6,7770.1%–

18Howard County, IAIA9,4150.1%−0.1 pts

19Fremont County, IAIA6,5220.1%–

20Jasper County, IAIA38,1530.1%+0.1 pts

21Palo Alto County, IAIA8,8990.1%−0.1 pts

22Lee County, IAIA32,3060.1%−0.1 pts

23Butler County, IAIA14,0490.1%+0.1 pts

24Clinton County, IAIA46,0020.1%−0.1 pts

25Ringgold County, IAIA4,6420.1%–

26Woodbury County, IAIA106,6490.1%+0.0 pts

27Boone County, IAIA26,7990.1%−0.0 pts

28Linn County, IAIA232,0280.1%−0.0 pts

29Mills County, IAIA14,7930.1%−0.2 pts

30Polk County, IAIA516,5460.1%−0.1 pts

31Buchanan County, IAIA20,8830.1%–

32Scott County, IAIA175,2590.1%−0.1 pts

33Marshall County, IAIA39,8900.1%+0.0 pts

34Chickasaw County, IAIA11,6630.1%−0.1 pts

35Worth County, IAIA7,3380.1%−0.1 pts

36Webster County, IAIA36,8380.1%−0.1 pts

37Union County, IAIA11,8290.1%−0.1 pts

38Monona County, IAIA8,5390.0%+0.0 pts

39Johnson County, IAIA160,0440.0%−0.1 pts

40Jackson County, IAIA19,2880.0%−0.2 pts

41Washington County, IAIA22,6670.0%−0.2 pts

42Black Hawk County, IAIA131,5320.0%−0.0 pts

43Cherokee County, IAIA11,3690.0%–

44Pottawattamie County, IAIA92,9960.0%−0.0 pts

45Marion County, IAIA34,1920.0%−0.1 pts

46Dubuque County, IAIA99,3810.0%−0.1 pts

47Franklin County, IAIA9,8680.0%−0.3 pts

48Mitchell County, IAIA10,6500.0%–

49Cerro Gordo County, IAIA42,3720.0%−0.0 pts

50Lyon County, IAIA12,3540.0%−0.0 pts

51Dallas County, IAIA118,4570.0%−0.2 pts

52Wapello County, IAIA35,2100.0%−0.2 pts

53Bremer County, IAIA25,2960.0%−0.0 pts

54Harrison County, IAIA14,6230.0%−0.2 pts

55Cedar County, IAIA18,3590.0%−0.1 pts

56Mahaska County, IAIA21,8800.0%–

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UPDATED 2026-08-08 · DATA: US CENSUS BUREAU ACS 5-YEAR ESTIMATES